CN119552545A - Inorganic composite environmentally friendly coating for photocatalytic air purification and preparation method thereof - Google Patents
Inorganic composite environmentally friendly coating for photocatalytic air purification and preparation method thereof Download PDFInfo
- Publication number
- CN119552545A CN119552545A CN202411724173.8A CN202411724173A CN119552545A CN 119552545 A CN119552545 A CN 119552545A CN 202411724173 A CN202411724173 A CN 202411724173A CN 119552545 A CN119552545 A CN 119552545A
- Authority
- CN
- China
- Prior art keywords
- tio
- photocatalysis
- titanium dioxide
- parts
- dye molecules
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/41—Organic pigments; Organic dyes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Catalysts (AREA)
Abstract
The application discloses an inorganic composite environment-friendly coating for purifying air by photocatalysis and a preparation method thereof, wherein the coating comprises, by mass, 30-60 parts of emulsion, 5-20 parts of porous substance-dye molecule-TiO 2 photocatalysis composite material, 10-30 parts of inorganic filler, 1-5 parts of auxiliary agent and 10-40 parts of water, wherein the porous substance-dye molecule-TiO 2 photocatalysis composite material is a composite material formed by loading dye molecules on the surface of titanium dioxide on the surface or in pore channels of a porous substance. The porous substance is utilized to provide more sufficient photocatalytic substrate, and the light absorption capacity of dye molecules is utilized to promote the photocatalytic capacity, so that the air purification effect is enhanced and the purification efficiency is improved.
Description
Technical Field
The application relates to the technical field of coatings, in particular to an inorganic composite environment-friendly coating for purifying air by photocatalysis and a preparation method thereof.
Background
The traditional paint can release harmful gases such as formaldehyde and the like in the drying and curing processes, so that the indoor air quality is seriously influenced, and potential hazard is brought to the health of residents. Related art research is conducted on adding a photocatalyst to a paint formulation to excite the photocatalyst in the paint by a light source so that the photocatalyst generates high-activity hydroxyl radicals with strong oxidizing ability, thereby degrading organic pollutants and simultaneously decomposing harmful substances such as formaldehyde in the air.
However, the photocatalytic effect of the photocatalytic environmental protection coating is directly affected by the light source condition, the photocatalytic environmental protection coating on the market at present has strict requirements on the light source, needs to pay attention to sufficient light source supply, and has low purification efficiency on harmful gas.
Disclosure of Invention
The application provides an inorganic composite environment-friendly coating for purifying air by photocatalysis and a preparation method thereof, which aim to solve the technical problem that the current photocatalysis coating has low purification efficiency on harmful gas.
In order to solve the technical problems, in a first aspect, the application provides an inorganic composite environment-friendly coating for purifying air by photocatalysis, which comprises the following raw material components in parts by weight:
30-60 parts of emulsion;
5-20 parts of porous substance-dye molecule-TiO 2 photocatalytic composite material;
10-30 parts of inorganic filler;
1-5 parts of an auxiliary agent;
10-40 parts of water;
The porous substance-dye molecule-TiO 2 photocatalysis composite material is formed by loading dye molecules on the surface of titanium dioxide on the surface of the porous substance or in a pore canal.
In some embodiments, the preparation method of the porous substance-dye molecule-TiO 2 photocatalytic composite material comprises the following steps:
Dispersing titanium dioxide particles in absolute ethyl alcohol, carrying out ultrasonic treatment for 20-40 min until the titanium dioxide particles are uniformly dispersed, adding 3-aminopropyl triethoxysilane, adjusting the pH to 7-9, and stirring for 2-4 h to obtain titanium dioxide dispersion liquid;
Dissolving dye molecules in dimethyl sulfoxide, adding the dimethyl sulfoxide into titanium dioxide dispersion liquid, stirring for 6-12 hours, and filtering and removing impurities to obtain dye molecules-TiO 2 composite particles;
Uniformly dispersing the porous substance in ethanol, adding dye molecule-TiO 2 composite particles, stirring at 500-1000 rpm for 2-4 hours, adding methyl cellulose, continuously stirring for 30-60 minutes, filtering, removing impurities, drying, performing heat treatment at 300-500 ℃, and cooling to room temperature to obtain the porous substance-dye molecule-TiO 2 photocatalytic composite material.
In some embodiments, the particle size of the titanium dioxide particles is 10 nm-50 nm.
In some embodiments, the mass ratio of titanium dioxide particles, dye molecules, and porous material is 5:1:10.
In some embodiments thereof, the porous substance includes, but is not limited to, one or more of diatomaceous earth, activated carbon, zeolite, porous ceramic, montmorillonite, bentonite, porous silica, and porous alumina.
In some embodiments thereof, the dye molecules include, but are not limited to, one or more of phthalocyanine-based dye molecules, porphyrin-based dye molecules, rhodamine-based dye molecules, and pyridine-based dye molecules.
In some embodiments thereof, the phthalocyanine dye molecules include one or two of copper phthalocyanine, zinc phthalocyanine, iron phthalocyanine, cobalt phthalocyanine, and nickel phthalocyanine;
or, the porphyrin dye molecule comprises one or more of hematoporphyrin, iron porphyrin, copper porphyrin, chlorin e6 and chlorin e 4;
Or, the rhodamine dye molecule comprises one or two of rhodamine B, rhodamine 6G, rhodamine X and rhodamine green;
Or, the pyridine dye molecule comprises one or two of zinc pyridine and cobalt pyridine.
In some embodiments thereof, the emulsion comprises any one of an acrylic emulsion, a styrene-acrylic emulsion, a polyvinyl acetate emulsion, and a polyvinyl alcohol emulsion;
The inorganic filler comprises one or more of silicon dioxide, talcum powder, mica, kaolin, calcium carbonate, barium sulfate, wollastonite, titanium dioxide, graphite and carbon black.
In some embodiments, the auxiliary agent includes one or more of a dispersant, a defoamer, a leveling agent, a thickener, a preservative, a wetting agent, an antistatic agent, a mildew inhibitor, a crosslinking agent, and a flame retardant.
In a second aspect, the embodiment of the application also provides a preparation method of the inorganic composite environment-friendly coating for purifying air by photocatalysis, which comprises the following steps:
Adding the emulsion, the inorganic filler, the auxiliary agent and the water into a stirrer, stirring for 15-30 min at 500-1000 rpm, adding the porous substance-dye molecule-TiO 2 photocatalytic composite material, and stirring for 1-2 h at 1500-3000 rpm to obtain the photocatalytic air-purifying composite environment-friendly coating.
Compared with the prior art, the application has at least the following beneficial effects:
the application combines porous substances, dye molecules and TiO 2 into a photocatalysis composite material, so that in photocatalysis, the porous substances have higher specific surface area, can provide a large number of adsorption sites, effectively adsorb organic pollutants, particles, harmful gases and the like in air, and provide more sufficient substrates for subsequent photocatalysis reaction, the dye molecules have strong capability of absorbing visible light, can expand the photoresponse range of TiO to a visible light region, reduce the requirement of a light source and enhance the light absorption efficiency, after the dye molecules absorb light energy, the energy is transferred to TiO through an energy transfer mechanism, so that more active oxygen species are generated by the dye molecules, thereby improving the photocatalysis efficiency, the pore channel structure of the porous substances can increase light scattering, further enhancing the photocatalysis effect, the dye molecules absorb visible light to generate an excited state, the dye molecules in the excited state transfer electrons to a conduction band of titanium dioxide to become an oxidized state, thereby effectively separating photogenerated electron-hole pairs through the photosensitization effect of the dye molecules, the pore channel structure of the porous substances promotes the separation of photogenerated electrons and hole pairs, and the separated electrons and hole pairs participate in the photocatalysis reaction, and the air purification efficiency is improved.
Detailed Description
The following detailed description of the present invention will provide further details in order to make the above-mentioned objects, features and advantages of the present invention more comprehensible. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.
The term "by..preparation" as used herein is synonymous with "comprising. The terms "comprising," "including," "having," "containing," or any other variation thereof, as used herein, are intended to cover a non-exclusive inclusion. For example, a composition, step, method, article, or apparatus that comprises a list of elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, step, method, article, or apparatus.
When an equivalent, concentration, or other value or parameter is expressed as a range, preferred range, or a range bounded by a list of upper preferable values and lower preferable values, this is to be understood as specifically disclosing all ranges formed from any pair of any upper range limit or preferred value and any lower range limit or preferred value, regardless of whether ranges are separately disclosed. For example, when ranges of "1 to 5" are disclosed, the described ranges should be construed to include ranges of "1 to 4", "1 to 3", "1 to 2 and 4 to 5", "1 to 3 and 5", and the like. When a numerical range is described herein, unless otherwise indicated, the range is intended to include its endpoints and all integers and fractions within the range.
Furthermore, the indefinite articles "a" and "an" preceding an element or component of the invention are not limited to the requirements of the number of elements or components (i.e. the number of occurrences). Thus, the use of "a" or "an" should be interpreted as including one or at least one, and the singular reference of an element or component also includes the plural reference unless the amount is obvious to the singular reference.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Preparation of composite Material example 1
The preparation method of the activated carbon-copper phthalocyanine-TiO 2 photocatalysis composite material comprises the following steps:
weighing raw materials according to the mass dosage ratio of 10nm titanium dioxide particles, copper phthalocyanine and active carbon of 5:1:10;
Dispersing titanium dioxide particles in absolute ethyl alcohol, carrying out ultrasonic treatment for 20min until the titanium dioxide particles are uniformly dispersed, adding 3-aminopropyl triethoxysilane, adjusting the pH to 7-9, and stirring for 4h to obtain titanium dioxide dispersion liquid;
Dissolving copper phthalocyanine in dimethyl sulfoxide, adding the dimethyl sulfoxide into titanium dioxide dispersion liquid, stirring for 6 hours, and filtering and removing impurities to obtain copper phthalocyanine-TiO 2 composite particles;
uniformly dispersing active carbon in ethanol, adding dye molecule-TiO 2 composite particles, stirring for 4 hours at 500rpm, adding methyl cellulose, continuously stirring for 60 minutes, filtering, removing impurities, drying, performing heat treatment at 300 ℃, and cooling to room temperature to obtain the active carbon-copper phthalocyanine-TiO 2 photocatalysis composite material.
Preparation of composite Material example 2
The preparation method of the porous silica-copper porphyrin-TiO 2 photocatalysis composite material comprises the following steps:
weighing raw materials according to the mass dosage ratio of the titanium dioxide particles with the diameter of 25nm, the copper porphyrin and the porous silicon dioxide of 5:1:10;
dispersing titanium dioxide particles in absolute ethyl alcohol, carrying out ultrasonic treatment for 40min until the titanium dioxide particles are uniformly dispersed, adding 3-aminopropyl triethoxysilane, adjusting the pH to 7-9, and stirring for 2h to obtain titanium dioxide dispersion liquid;
Dissolving copper porphyrin in dimethyl sulfoxide, adding the dimethyl sulfoxide into titanium dioxide dispersion liquid, stirring for 12 hours, and filtering and removing impurities to obtain copper porphyrin-TiO 2 composite particles;
Uniformly dispersing porous silicon dioxide in ethanol, adding copper porphyrin-TiO 2 composite particles, stirring at 1000rpm for 2 hours, adding methyl cellulose, continuously stirring for 30 minutes, filtering, removing impurities, drying, performing heat treatment at 500 ℃, and cooling to room temperature to obtain the porous silicon dioxide-copper porphyrin-TiO 2 photocatalytic composite material.
Preparation of composite Material example 3
The preparation method of the diatomite-rhodamine green-TiO 2 photocatalysis composite material comprises the following steps:
weighing raw materials according to the mass dosage ratio of 35nm titanium dioxide particles, rhodamine green and diatomite of 5:1:10;
Dispersing titanium dioxide particles in absolute ethyl alcohol, carrying out ultrasonic treatment for 30min until the titanium dioxide particles are uniformly dispersed, adding 3-aminopropyl triethoxysilane, adjusting the pH to 7-9, and stirring for 3h to obtain titanium dioxide dispersion liquid;
Dissolving dye molecules in dimethyl sulfoxide, adding the dimethyl sulfoxide into titanium dioxide dispersion liquid, stirring for 8 hours, and filtering and removing impurities to obtain dye molecules-TiO 2 composite particles;
Uniformly dispersing the porous substance in ethanol, adding dye molecule-TiO 2 composite particles, stirring at 700rpm for 3.5h, adding methyl cellulose, continuously stirring for 35min, filtering, removing impurities, drying, performing heat treatment at 400 ℃, and cooling to room temperature to obtain the diatomite-rhodamine green-TiO 2 photocatalytic composite material.
Preparation of composite Material example 4
The preparation method of the bentonite-cobalt pyridine-TiO 2 photocatalysis composite material comprises the following steps:
weighing raw materials according to the mass dosage ratio of 50nm titanium dioxide particles, cobalt pyridine and bentonite of 5:1:10;
Dispersing titanium dioxide particles in absolute ethyl alcohol, carrying out ultrasonic treatment for 35min until the titanium dioxide particles are uniformly dispersed, adding 3-aminopropyl triethoxysilane, adjusting the pH to 7-9, and stirring for 2.8h to obtain titanium dioxide dispersion liquid;
dissolving cobalt pyridine in dimethyl sulfoxide, adding the dimethyl sulfoxide into titanium dioxide dispersion liquid, stirring for 10 hours, and filtering and removing impurities to obtain dye molecule-TiO 2 composite particles;
uniformly dispersing the porous substance in ethanol, adding dye molecule-TiO 2 composite particles, stirring at 900rpm for 2.5h, adding methyl cellulose, continuously stirring for 45min, filtering, removing impurities, drying, performing heat treatment at 400 ℃, and cooling to room temperature to obtain the bentonite-cobalt pyridine-TiO 2 photocatalysis composite material.
Example 1
The photocatalytic air-purifying composite environment-friendly paint comprises the following raw material components in parts by weight:
30 parts of acrylic emulsion;
5 parts of activated carbon-copper phthalocyanine-TiO 2 photocatalytic composite material of preparation example 1;
10 parts of calcium carbonate;
1 part of fatty alcohol polyoxyethylene ether;
10 parts of water;
The preparation method of the photocatalytic air-purifying composite environment-friendly coating comprises the following steps:
Adding the emulsion, the inorganic filler, the auxiliary agent and the water into a stirrer, stirring for 30min at 500rpm, adding the activated carbon-copper phthalocyanine-TiO 2 photocatalysis composite material, and stirring for 1h at 3000rpm to obtain the photocatalysis air purifying composite environment-friendly coating.
Example 2
The photocatalytic air-purifying composite environment-friendly paint comprises the following raw material components in parts by weight:
60 parts of acrylic emulsion;
20 parts of porous silica-copper porphyrin-TiO 2 photocatalysis composite material;
30 parts of calcium carbonate;
5 parts of fatty alcohol polyoxyethylene ether;
40 parts of water;
The preparation method of the photocatalytic air-purifying composite environment-friendly coating comprises the following steps:
Adding the emulsion, the inorganic filler, the auxiliary agent and the water into a stirrer, stirring for 15min at 1000rpm, adding the porous silica-copper porphyrin-TiO 2 photocatalytic composite material, and stirring for 2h at 1500rpm to obtain the photocatalytic air-purifying composite environment-friendly coating.
Example 3
The photocatalytic air-purifying composite environment-friendly paint comprises the following raw material components in parts by weight:
40 parts of acrylic emulsion;
10 parts of diatomite-rhodamine green-TiO 2 photocatalytic composite material;
15 parts of calcium carbonate;
3 parts of fatty alcohol polyoxyethylene ether;
20 parts of water;
The preparation method of the photocatalytic air-purifying composite environment-friendly coating comprises the following steps:
Adding the emulsion, the inorganic filler, the auxiliary agent and the water into a stirrer, stirring for 25min at 600rpm, adding the diatomite-rhodamine green-TiO 2 photocatalytic composite material, and stirring for 1.5h at 2000rpm to obtain the photocatalytic air-purifying composite environment-friendly coating.
Example 4
The photocatalytic air-purifying composite environment-friendly paint comprises the following raw material components in parts by weight:
40 parts of acrylic emulsion;
15 parts of bentonite-cobalt pyridine-TiO 2 photocatalysis composite material;
25 parts of calcium carbonate;
3 parts of fatty alcohol polyoxyethylene ether;
30 parts of water;
The preparation method of the photocatalytic air-purifying composite environment-friendly coating comprises the following steps:
Adding the emulsion, the inorganic filler, the auxiliary agent and the water into a stirrer, stirring for 25min at 900rpm, adding the bentonite-cobalt pyridine-TiO 2 photocatalytic composite material, and stirring for 1.5h at 2500rpm to obtain the photocatalytic air-purifying composite environment-friendly coating.
Comparative example 1
Compared with example 1, the titanium dioxide particles of preparation example 1 were used instead of the activated carbon-copper phthalocyanine-TiO 2 photocatalytic composite material, and the rest was the same as in example 1.
Comparative example 2
In comparison with example 1, the copper phthalocyanine-TiO 2 composite particles of preparation example 1 were used instead of the activated carbon-copper phthalocyanine-TiO 2 photocatalytic composite material, and the rest was the same as in example 1.
Comparative example 3
Compared with example 1, activated carbon-TiO 2 composite particles are used to replace activated carbon-copper phthalocyanine-TiO 2 photocatalytic composite material, and the rest is the same as example 1. The preparation method of the active carbon-TiO 2 composite particles comprises the steps of dispersing titanium dioxide particles in absolute ethyl alcohol, carrying out ultrasonic treatment for 20min until the titanium dioxide particles are uniformly dispersed, adding 3-aminopropyl triethoxysilane, regulating the pH value to 7-9, stirring for 4h to obtain titanium dioxide dispersion liquid, uniformly dispersing the active carbon in the titanium dioxide dispersion liquid, stirring for 4h at 500rpm, adding methyl cellulose, continuously stirring for 60min, filtering, removing impurities, drying, carrying out heat treatment at 300 ℃, and cooling to room temperature to obtain the active carbon-TiO 2 composite particles.
The coatings of examples 1 to 4 and comparative examples 1 to 3 were tested for photocatalytic organic gas purification efficiency according to the requirements of the method for measuring organic gas in air in public places GBT 18204.26-2000, and the above coatings were tested for formaldehyde purification efficiency according to JC/T1074-2008 purification performance of coating materials for indoor air purification function.
As shown in the table above, compared with comparative examples 1 to 3, the organic gas decomposition efficiency of the composite environmental protection coatings prepared in examples 1 to 4 of the present application under 4h photocatalysis reaches over 92.2%, the formaldehyde purification efficiency is greater than 99%, and the composite environmental protection coatings are significantly superior to comparative examples 1 to 3. Therefore, the porous substance-dye molecule-TiO 2 photocatalysis composite material is adopted as the photocatalyst, so that the paint has better purifying effect and purifying efficiency.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing embodiments have been provided for the purpose of illustrating the general principles of the present application, and are not to be construed as limiting the scope of the application. It should be noted that any modifications, equivalent substitutions, improvements, etc. made by those skilled in the art without departing from the spirit and principles of the present application are intended to be included in the scope of the present application.
Claims (10)
1. The inorganic composite environment-friendly coating for purifying air by photocatalysis is characterized by comprising the following raw material components in parts by weight:
30-60 parts of emulsion;
5-20 parts of porous substance-dye molecule-TiO 2 photocatalytic composite material;
10-30 parts of inorganic filler;
1-5 parts of an auxiliary agent;
10-40 parts of water;
The porous substance-dye molecule-TiO 2 photocatalysis composite material is formed by loading dye molecules on the surface of titanium dioxide on the surface of the porous substance or in a pore canal.
2. The inorganic composite environment-friendly coating for purifying air by photocatalysis according to claim 1, which is characterized in that, the preparation method of the porous substance-dye molecule-TiO 2 photocatalysis composite material comprises the following steps:
Dispersing titanium dioxide particles in absolute ethyl alcohol, carrying out ultrasonic treatment for 20-40 min until the titanium dioxide particles are uniformly dispersed, adding 3-aminopropyl triethoxysilane, adjusting the pH to 7-9, and stirring for 2-4 h to obtain titanium dioxide dispersion liquid;
Dissolving dye molecules in dimethyl sulfoxide, adding the dimethyl sulfoxide into titanium dioxide dispersion liquid, stirring for 6-12 hours, and filtering and removing impurities to obtain dye molecules-TiO 2 composite particles;
Uniformly dispersing the porous substance in ethanol, adding dye molecule-TiO 2 composite particles, stirring at 500-1000 rpm for 2-4 hours, adding methyl cellulose, continuously stirring for 30-60 minutes, filtering, removing impurities, drying, performing heat treatment at 300-500 ℃, and cooling to room temperature to obtain the porous substance-dye molecule-TiO 2 photocatalytic composite material.
3. The inorganic composite environment-friendly coating for purifying air by photocatalysis according to claim 2, which is characterized in that the particle size of the titanium dioxide particles is 10 nm-50 nm.
4. The inorganic composite environment-friendly coating for purifying air by photocatalysis according to claim 2, which is characterized in that the mass ratio of titanium dioxide particles to dye molecules to porous substances is 5:1:10.
5. The inorganic composite environmental protection coating for photocatalytic air purification according to claim 1, wherein the porous material includes, but is not limited to, one or more of diatomaceous earth, activated carbon, zeolite, porous ceramic, montmorillonite, bentonite, porous silica, and porous alumina.
6. The inorganic composite environmental protection coating for photocatalytic air purification according to claim 1, wherein the dye molecules include, but are not limited to, one or more of phthalocyanine dye molecules, porphyrin dye molecules, rhodamine dye molecules, and pyridine dye molecules.
7. The inorganic composite environment-friendly coating for purifying air by photocatalysis according to claim 6, wherein the phthalocyanine dye molecules comprise one or two of copper phthalocyanine, zinc phthalocyanine, iron phthalocyanine, cobalt phthalocyanine and nickel phthalocyanine;
or, the porphyrin dye molecule comprises one or more of hematoporphyrin, iron porphyrin, copper porphyrin, chlorin e6 and chlorin e 4;
Or, the rhodamine dye molecule comprises one or two of rhodamine B, rhodamine 6G, rhodamine X and rhodamine green;
Or, the pyridine dye molecule comprises one or two of zinc pyridine and cobalt pyridine.
8. The inorganic composite environmental protection coating for purifying air by photocatalysis according to claim 1, wherein the emulsion comprises any one of acrylic emulsion, styrene-acrylic emulsion, polyvinyl acetate emulsion and polyvinyl alcohol emulsion;
The inorganic filler comprises one or more of silicon dioxide, talcum powder, mica, kaolin, calcium carbonate, barium sulfate, wollastonite, titanium dioxide, graphite and carbon black.
9. The inorganic composite environmental protection coating for purifying air by photocatalysis according to claim 1, wherein the auxiliary agent comprises one or more of dispersing agent, defoamer, leveling agent, thickener, preservative, wetting agent, antistatic agent, mildew preventive, crosslinking agent and flame retardant.
10. A method for preparing the inorganic composite environment-friendly coating for purifying air by photocatalysis according to any one of claims 1 to 9, which is characterized by comprising the following steps:
Adding the emulsion, the inorganic filler, the auxiliary agent and the water into a stirrer, stirring for 15-30 min at 500-1000 rpm, adding the porous substance-dye molecule-TiO 2 photocatalytic composite material, and stirring for 1-2 h at 1500-3000 rpm to obtain the photocatalytic air-purifying composite environment-friendly coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411724173.8A CN119552545B (en) | 2024-11-28 | 2024-11-28 | Inorganic composite environmentally friendly coating for photocatalytic air purification and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411724173.8A CN119552545B (en) | 2024-11-28 | 2024-11-28 | Inorganic composite environmentally friendly coating for photocatalytic air purification and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN119552545A true CN119552545A (en) | 2025-03-04 |
| CN119552545B CN119552545B (en) | 2025-09-05 |
Family
ID=94747007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202411724173.8A Active CN119552545B (en) | 2024-11-28 | 2024-11-28 | Inorganic composite environmentally friendly coating for photocatalytic air purification and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN119552545B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120519054A (en) * | 2025-07-25 | 2025-08-22 | 成都市环境保护科学研究院(成都市固体废物管理技术中心) | A biochar and photocatalytic material composite coating and a drainage pipe |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060223700A1 (en) * | 2005-03-31 | 2006-10-05 | Seoul National University Industry Foundation | Methods for forming porous oxide coating layer on titanium dioxide (TiO2) particle surface and titanium dioxide (TiO2) powder and film manufactured therefrom |
| CN102641719A (en) * | 2011-02-22 | 2012-08-22 | 徐海 | Load type composite silicate base active absorption material and preparation method of load type composite silicate base active absorption material |
| US20150371787A1 (en) * | 2014-06-18 | 2015-12-24 | Korea Institute Of Science And Technology | Sensitizing dye solution, working electrode for dye-sensitized solar cell prepared using the sensitizing dye solution and dye-sensitized solar cell including the working electrode |
| CN109433176A (en) * | 2018-11-07 | 2019-03-08 | 山东科技大学 | A kind of titanium dioxide-montmorillonite nanometer complex preparation method of porphyrin functionalization |
| CN112210255A (en) * | 2020-10-10 | 2021-01-12 | 佛山市净野环保材料有限公司 | Environment-friendly wall coating with odor removing function and preparation method thereof |
| CN112517081A (en) * | 2020-12-25 | 2021-03-19 | 江苏特丰新材料科技有限公司 | Composite photocatalyst of metal stannum porphyrin axial functionalized titanium dioxide and preparation method thereof |
| CN117548092A (en) * | 2023-11-13 | 2024-02-13 | 东北大学秦皇岛分校 | Preparation method of porous ceramsite photocatalytic adsorption materials for low-cost and efficient treatment of rhodamine B wastewater |
-
2024
- 2024-11-28 CN CN202411724173.8A patent/CN119552545B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060223700A1 (en) * | 2005-03-31 | 2006-10-05 | Seoul National University Industry Foundation | Methods for forming porous oxide coating layer on titanium dioxide (TiO2) particle surface and titanium dioxide (TiO2) powder and film manufactured therefrom |
| CN102641719A (en) * | 2011-02-22 | 2012-08-22 | 徐海 | Load type composite silicate base active absorption material and preparation method of load type composite silicate base active absorption material |
| US20150371787A1 (en) * | 2014-06-18 | 2015-12-24 | Korea Institute Of Science And Technology | Sensitizing dye solution, working electrode for dye-sensitized solar cell prepared using the sensitizing dye solution and dye-sensitized solar cell including the working electrode |
| CN109433176A (en) * | 2018-11-07 | 2019-03-08 | 山东科技大学 | A kind of titanium dioxide-montmorillonite nanometer complex preparation method of porphyrin functionalization |
| CN112210255A (en) * | 2020-10-10 | 2021-01-12 | 佛山市净野环保材料有限公司 | Environment-friendly wall coating with odor removing function and preparation method thereof |
| CN112517081A (en) * | 2020-12-25 | 2021-03-19 | 江苏特丰新材料科技有限公司 | Composite photocatalyst of metal stannum porphyrin axial functionalized titanium dioxide and preparation method thereof |
| CN117548092A (en) * | 2023-11-13 | 2024-02-13 | 东北大学秦皇岛分校 | Preparation method of porous ceramsite photocatalytic adsorption materials for low-cost and efficient treatment of rhodamine B wastewater |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120519054A (en) * | 2025-07-25 | 2025-08-22 | 成都市环境保护科学研究院(成都市固体废物管理技术中心) | A biochar and photocatalytic material composite coating and a drainage pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN119552545B (en) | 2025-09-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN119552545B (en) | Inorganic composite environmentally friendly coating for photocatalytic air purification and preparation method thereof | |
| CN111744476B (en) | A kind of preparation method and application of red mud carbon-based catalyst | |
| CN109364992B (en) | A kind of nitrogen-doped graphene/nano titanium dioxide photocatalyst and preparation method and application thereof | |
| CN104446283B (en) | High-efficient purification air/antibacterial/automatic humidifying diatom ooze wall material and preparation method | |
| CN107737594B (en) | Catalyst for degrading formaldehyde wastewater and preparation method and application thereof | |
| CN114196241A (en) | Photocatalytic self-cleaning coating and preparation method and application thereof | |
| CN105776494A (en) | Phenol wastewater treatment method and preparation method of CuO/ZSM-5 catalyst | |
| CN104923203A (en) | Composite photlocatalyst and preparation method as well as application thereof | |
| CN107353719A (en) | Environment-friendly type building water paint containing modified graphene oxide and preparation method thereof | |
| WO2023128493A1 (en) | Method for producing graphitic carbon nitride by using hard template method for decomposition of organic contaminants | |
| CN112520735A (en) | Activated carbon for removing chloramine | |
| CN108940348B (en) | Silver chromate/sulfur-doped nitrogen carbon Z-type photocatalyst and preparation method thereof | |
| CN111054142A (en) | Preparation method of antibacterial high-adsorption-rate filter material | |
| CN115724683A (en) | Zero-valent iron ceramsite and preparation method and application thereof | |
| CN111704842B (en) | Modified acrylate emulsion and water-based paint containing same | |
| CN110180503A (en) | A kind of preparation method of high removal rate air filting material | |
| CN117920344B (en) | A porous core-shell purification modifier, self-purifying modified asphalt and preparation method thereof | |
| CN108912887B (en) | Diatom ooze coating capable of degrading formaldehyde and used for interior decoration | |
| CN116673056B (en) | Preparation method of Fe-g-C3N4/MoO3-x photocatalyst and its application in photo-Fenton oxidation to remove humic acid in water | |
| Peter et al. | Ordered cubic mesoporous KIT-5 functionalized with g-C3N4 nano particles for the complete discoloration and degradation of cationic dye | |
| CN115739014A (en) | Electroplating wastewater treating agent and preparation method and application thereof | |
| CN108854524A (en) | A kind of preparation method of the oxidation modification support type bamboo charcoal of adsorbable degradation of formaldehyde | |
| CN106731889A (en) | 3D printing films of organic matter such as a kind of absorption ethers and preparation method thereof | |
| CN114225899A (en) | A kind of mesoporous molecular sieve modification and its adsorption treatment method of printing and dyeing wastewater | |
| CN115637090B (en) | Nanometer flexible solid wood composite environment-friendly floor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |