CN109701562B - Bismuth oxybromide with three-dimensional flower-like structure and preparation method and application thereof - Google Patents
Bismuth oxybromide with three-dimensional flower-like structure and preparation method and application thereof Download PDFInfo
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Abstract
本发明提供了一种三维花状结构的溴氧化铋的制备方法，包括：提供溴化季铵盐溶液和硝酸铋溶液，将所述溴化季铵盐溶液和所述硝酸铋溶液混合均匀得到混合液；将所述混合液在室温静置10h‑30h后进行过滤，得到沉淀物，将所述沉淀物进行清洗即可得到三维花状结构的溴氧化铋；该制备过程简单，反应条件温和，无需加热，在室温条件下即可发生反应和自组装；反应速度快，成本低，无需复杂反应设备；制得的三维花状结构的溴氧化铋具有优良的可见光响应能力，光催化效率高，有利于其在光催化领域中的应用。
The invention provides a preparation method of bismuth oxybromide with a three-dimensional flower-like structure, comprising: providing a quaternary ammonium bromide salt solution and a bismuth nitrate solution, and uniformly mixing the quaternary ammonium bromide salt solution and the bismuth nitrate solution to obtain mixed solution; filter the mixed solution after standing at room temperature for 10h-30h to obtain a precipitate, and wash the precipitate to obtain bismuth oxybromide with a three-dimensional flower-like structure; the preparation process is simple and the reaction conditions are mild , without heating, the reaction and self-assembly can occur at room temperature; the reaction speed is fast, the cost is low, and no complicated reaction equipment is required; the prepared three-dimensional flower-like bismuth oxybromide has excellent visible light response ability and high photocatalytic efficiency , which is beneficial to its application in the field of photocatalysis.
Description
Technical Field
The invention relates to the technical field of photocatalyst preparation, in particular to bismuth oxybromide with a three-dimensional flower-like structure and a preparation method and application thereof.
Background
Bismuth oxybromide (BiOBr) is a novel photocatalytic material and has a square layered crystal structure; the special crystal structure makes the photoproduction electron hole pair not easy to be compounded, thereby promoting the application of photocatalytic degradation. The bismuth oxybromide can decompose organic dye into carbon dioxide and water molecules under the action of visible light, and the catalytic efficiency of the bismuth oxybromide is higher than that of commercial photocatalyst titanium dioxide, so that the bismuth oxybromide can be used for purifying sewage and the like. In addition, bismuth oxybromide has important applications in the fields of gas sensing, cosmetics, selective oxidation catalysts, ion conductors, ferroelectric materials and the like.
At present, bismuth oxybromide has a one-dimensional nanowire structure, a two-dimensional nanosheet structure, a three-dimensional flower-like structure and the like. The bismuth oxybromide with the three-dimensional flower-shaped structure has larger specific area than that of bismuth oxybromide with one-dimensional and two-dimensional structures, and has high photocatalytic activity and high catalytic activity. The conventional bismuth oxybromide synthesis mainly adopts a hydrothermal method, electrostatic spinning and the like, and although the preparation technology is developed well, the conventional preparation method needs higher synthesis temperature and longer reaction time, complex reaction equipment is needed in the preparation process, and toxic organic solvents and the like need to be added in the preparation process. Therefore, a mild, rapid and simple preparation method for preparing bismuth oxybromide with a specific structure is needed.
Disclosure of Invention
In view of the above, the invention provides a preparation method of bismuth oxybromide with a three-dimensional flower-like structure, wherein a quaternary ammonium bromide salt solution provides bromide ions to react with bismuth nitrate to generate bismuth oxybromide; meanwhile, the quaternary ammonium bromide salt is used as a surfactant to promote the self-assembly of the generated bismuth oxybromide in the reaction process, so that the bismuth oxybromide with a three-dimensional flower-shaped structure is formed; the preparation process is simple, the reaction condition is mild, heating is not needed, and reaction and self-assembly can be carried out at room temperature; the reaction speed is high, the cost is low, and complex reaction equipment is not needed; the prepared bismuth oxybromide with the three-dimensional flower-like structure has excellent visible light response capability and high photocatalytic efficiency, and is beneficial to the application of the bismuth oxybromide in the field of photocatalysis.
In a first aspect, the invention provides a preparation method of bismuth oxybromide with a three-dimensional flower-like structure, which comprises the following steps:
providing a quaternary ammonium bromide salt solution and a bismuth nitrate solution, and uniformly mixing the quaternary ammonium bromide salt solution and the bismuth nitrate solution to obtain a mixed solution;
and standing the mixed solution at room temperature for 10-30 h, filtering to obtain a precipitate, and cleaning the precipitate to obtain the bismuth oxybromide with the three-dimensional flower-like structure.
In the invention, bismuth ions and bromine ions in the mixed solution generate bismuth oxybromide in the standing process, and the quaternary ammonium bromide salt is simultaneously used as a surfactant to promote the self-assembly of the generated bismuth oxybromide to form a three-dimensional flower-shaped structure. The addition of the quaternary ammonium bromide salt controls the growth direction of the bismuth oxybromide to a certain extent, and plays a role of a soft template, thereby promoting the generation of the bismuth oxybromide with a three-dimensional flower-shaped structure.
Optionally, the solute of the quaternary ammonium bromide salt solution comprises at least one of alkyltrimethylammonium bromide, dialkyldimethylammonium bromide, and alkyldimethylbenzylammonium bromide.
Optionally, the solute of the quaternary ammonium bromide salt solution comprises at least one of cetyltrimethylammonium bromide, dodecyltrimethylammonium bromide, dioctadecyldimethylammonium bromide and dodecyldimethylbenzylammonium bromide. Further, the solute of the quaternary ammonium bromide salt solution includes at least one of cetyltrimethylammonium bromide, dodecyltrimethylammonium bromide, and dodecyltrimethylammonium bromide.
Optionally, the molar ratio of bromide ions to bismuth ions in the mixed solution is (1-5): 1. specifically, the molar ratio of the bromide ions to the bismuth ions in the mixed solution may be, but not limited to, 1:1, 2:1, 3:1, or 5: 1.
Optionally, the concentration of the quaternary ammonium bromide salt solution is 0.01mol/L-0.3 mol/L. Further, the concentration of the quaternary ammonium bromide salt solution is 0.05mol/L-0.25 mol/L. Specifically, the concentration of the quaternary ammonium bromide salt solution can be, but is not limited to, 0.05mol/L, 0.1mol/L, 0.15mol/L, 0.18mol/L, or 0.27 mol/L.
Optionally, the concentration of the bismuth nitrate solution is 0.5mol/L-1.5 mol/L. Further, the concentration of the bismuth nitrate solution is 0.8-1.5 mol/L. Specifically, the concentration of the bismuth nitrate solution can be, but is not limited to, 0.5mol/L, 1mol/L, 1.2mol/L, or 1.5 mol/L.
Optionally, the solvent of the quaternary ammonium bromide salt solution is water or an alkaline solvent, and the alkaline solvent includes at least one of sodium hydroxide, potassium hydroxide and ammonia water. Further, when the solvent of the quaternary ammonium bromide salt solution is an alkaline solvent, the concentration of hydroxide ions in the quaternary ammonium bromide salt solution is 0.05mol/L-0.2 mol/L. Further, the concentration of the hydroxide ions is 0.08-0.15 mol/L. Specifically, the concentration of the hydroxide ion may be, but is not limited to, 0.05mol/L, 0.1mol/L, 0.12mol/L, or 0.18 mol/L.
Optionally, the standing at room temperature for 10h-30h comprises standing at 15-30 ℃ for 10h-30 h. Specifically, the temperature can be kept still for 12h-26h at 18-25 ℃, 24h at 20 ℃ or 15h at 25 ℃ without limitation.
Optionally, the cleaning comprises cleaning with absolute ethanol and deionized water. In the present invention, washing is used to wash out the quaternary ammonium bromide salt in the three-dimensional flower-like structure of bismuth oxybromide.
The invention provides a preparation method of bismuth oxybromide with a three-dimensional flower-like structure, wherein a quaternary ammonium bromide salt solution provides bromide ions to react with bismuth nitrate to generate bismuth oxybromide; meanwhile, the quaternary ammonium bromide salt is used as a surfactant to promote the self-assembly of the generated bismuth oxybromide in the reaction process, so that the bismuth oxybromide with a three-dimensional flower-shaped structure is formed; the preparation process is simple, the reaction condition is mild, heating is not needed, and reaction and self-assembly can be carried out at room temperature; the reaction speed is high, the cost is low, and complex reaction equipment is not needed.
In a second aspect, the invention provides a three-dimensional flower-like structure bismuth oxybromide, which is prepared by the preparation method of the three-dimensional flower-like structure bismuth oxybromide described in the first aspect.
Optionally, the bismuth oxybromide with the three-dimensional flower-like structure is formed by self-assembling bismuth oxybromide nanosheets with the thickness of 10nm-50 nm.
Optionally, the maximum radial dimension of the bismuth oxybromide of the three-dimensional flower-like structure is 10 μm to 25 μm.
In a third aspect, the invention provides application of the three-dimensional flower-like structure bismuth oxybromide in the field of photocatalysis.
Specifically, the bismuth oxybromide with the three-dimensional flower-like structure can be added into water containing target pollutants, and the target pollutants can be rapidly degraded under the irradiation of visible light, so that the water is purified. The target contaminant may be, but is not limited to, an antibiotic, rhodamine B, bisphenol a, methyl orange, or methylene blue.
The invention has the beneficial effects that:
the bismuth oxybromide is prepared by mixing a bismuth nitrate solution and a quaternary ammonium bromide solution, wherein bromide ions provided by the quaternary ammonium bromide solution react with bismuth nitrate at room temperature; meanwhile, the quaternary ammonium bromide salt is used as a surfactant to promote the generated bismuth oxybromide to carry out self-assembly at room temperature to form the bismuth oxybromide with a three-dimensional flower-shaped structure; the preparation process is simple, the reaction condition is mild, heating is not needed, and reaction and self-assembly can be carried out at room temperature; the reaction speed is high, the cost is low, and complex reaction equipment is not needed; the prepared bismuth oxybromide has a three-dimensional flower-like structure, large specific surface area, high photocatalytic efficiency and excellent visible light response capability, and has wide application prospect in the field of photocatalysis.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. The specific embodiments described herein are merely illustrative of the invention and do not delimit the invention.
FIG. 1 is a scanning electron microscope image of bismuth oxybromide with a three-dimensional flower-like structure prepared in example 1 of the present invention;
FIG. 2 is a scanning electron micrograph of bismuth oxybromide prepared according to comparative example 1 of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Preparation method of bismuth oxybromide with three-dimensional flower-like structure
Preparing a cetyl trimethyl ammonium bromide solution and a bismuth nitrate solution, wherein the concentration of the cetyl trimethyl ammonium bromide solution is 0.1mol/L, and the concentration of the bismuth nitrate solution is 0.5 mol/L. Mixing a cetyl trimethyl ammonium bromide solution and a bismuth nitrate solution, and performing vortex oscillation to uniformly mix the cetyl trimethyl ammonium bromide solution and the bismuth nitrate solution to obtain a mixed solution, wherein the molar ratio of bromide ions to bismuth ions is 1: 1.
Standing the mixed solution at 20 ℃ for 24h for reaction and self-assembly, and filtering to obtain a precipitate. And then repeatedly washing the bismuth oxybromide photocatalyst by using absolute ethyl alcohol and deionized water in a crossed manner for three times to obtain the bismuth oxybromide photocatalyst with a three-dimensional flower-like structure. The prepared bismuth oxybromide with the three-dimensional flower-like structure is subjected to electron microscope scanning, and the result is shown in figure 1, so that the bismuth oxybromide with the three-dimensional flower-like structure can be prepared at room temperature by adopting the method disclosed by the invention, the bismuth oxybromide with the three-dimensional flower-like structure is composed of bismuth oxybromide nanosheets with the average thickness of 20nm, and the average maximum radial dimension of the bismuth oxybromide with the three-dimensional flower-like structure is 18 mu m.
Example 2
Preparation method of bismuth oxybromide with three-dimensional flower-like structure
Preparing and mixing a decaalkyl trimethyl ammonium bromide solution and a bismuth nitrate solution, and performing vortex oscillation to uniformly mix the decaalkyl trimethyl ammonium bromide solution and the bismuth nitrate solution to obtain a mixed solution, wherein the molar ratio of bromide ions to bismuth ions is 2: 1. And standing the mixed solution at 15 ℃ for 28h for reaction and self-assembly, filtering to obtain a precipitate, and then washing with absolute ethyl alcohol and deionized water to obtain the bismuth oxybromide with the three-dimensional flower-like structure. Scanning the prepared bismuth oxybromide with the three-dimensional flower-like structure by an electron microscope, and showing that the bismuth oxybromide with the three-dimensional flower-like structure consists of bismuth oxybromide nanosheets with the average thickness of 30nm, and the average maximum radial dimension of the bismuth oxybromide with the three-dimensional flower-like structure is 24 microns.
Example 3
Preparation method of bismuth oxybromide with three-dimensional flower-like structure
Preparing and mixing a dodecyl trimethyl ammonium bromide solution and a bismuth nitrate solution, and performing vortex oscillation to uniformly mix the dodecyl trimethyl ammonium bromide solution and the bismuth nitrate solution to obtain a mixed solution, wherein the molar ratio of bromide ions to bismuth ions is 1: 2. And standing the mixed solution at 25 ℃ for 15h for reaction and self-assembly, and filtering to obtain the bismuth oxybromide with a three-dimensional flower-like structure. Scanning by an electron microscope shows that the bismuth oxybromide with the three-dimensional flower-like structure is composed of bismuth oxybromide nanosheets with the average thickness of 15nm, and the average maximum radial dimension of the bismuth oxybromide with the three-dimensional flower-like structure is 22 microns.
Comparative example 1
Preparing a sodium bromide solution and a bismuth nitrate solution, wherein the concentration of the sodium bromide solution is 0.1mol/L, and the concentration of the bismuth nitrate solution is 0.5 mol/L. Mixing a sodium bromide solution and a bismuth nitrate solution, and performing vortex oscillation to uniformly mix the sodium bromide solution and the bismuth nitrate solution to obtain a mixed solution, wherein the molar ratio of bromide ions to bismuth ions is 1: 1.
Standing the mixed solution at 20 ℃ for 24h for reaction and self-assembly, and filtering to obtain a precipitate. Then, the bismuth oxybromide is obtained by repeatedly washing the bismuth oxybromide with absolute ethyl alcohol and deionized water for three times in a crossed manner. Scanning the prepared bismuth oxybromide by an electron microscope to form a rod-shaped structure without forming a flower-shaped structure.
Therefore, the bismuth nitrate solution and the quaternary ammonium bromide solution can react and self-assemble at room temperature to generate the bismuth oxybromide with a three-dimensional flower-like structure, the preparation process is simple, the reaction condition is mild, the reaction speed is high, the cost is low, complex reaction equipment is not needed, the prepared bismuth oxybromide has the three-dimensional flower-like structure, the specific surface area is large, the photocatalytic efficiency is high, and the application prospect in the field of photocatalysis is wide.
The above description is of the preferred embodiment of the present invention, but should not be taken as limiting the scope of the invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and such improvements and modifications are also considered to be within the scope of the present invention.
Claims (8)
1. A preparation method of bismuth oxybromide with a three-dimensional flower-like structure is characterized by comprising the following steps:
providing a quaternary ammonium bromide salt solution and a bismuth nitrate solution, and uniformly mixing the quaternary ammonium bromide salt solution and the bismuth nitrate solution to obtain a mixed solution, wherein the solute of the quaternary ammonium bromide salt solution comprises at least one of cetyl trimethyl ammonium bromide, dodecyl trimethyl ammonium bromide, dioctadecyl dimethyl ammonium bromide and dodecyl dimethyl benzyl ammonium bromide;
standing the mixed solution at room temperature for 10-30 h, filtering to obtain a precipitate, and cleaning the precipitate to obtain the bismuth oxybromide with a three-dimensional flower-like structure, wherein the maximum radial dimension of the bismuth oxybromide with the three-dimensional flower-like structure is 10-25 μm.
2. The method according to claim 1, wherein the molar ratio of bromide ions to bismuth ions in the mixed solution is (1-5): 1.
3. the method of preparing bismuth oxybromide having a three-dimensional flower-like structure according to claim 1, wherein the concentration of the quaternary ammonium bromide salt solution is 0.01mol/L to 0.3 mol/L.
4. The method of preparing bismuth oxybromide having a three-dimensional flower-like structure according to claim 1, wherein the concentration of the bismuth nitrate solution is 0.5mol/L to 1.5 mol/L.
5. The method of claim 1, wherein the solvent of the quaternary ammonium bromide salt solution is water or an alkaline solvent, and the alkaline solvent comprises at least one of sodium hydroxide, potassium hydroxide and ammonia water.
6. A three-dimensional flower-like structure of bismuth oxybromide, which is prepared by the method for preparing three-dimensional flower-like structure of bismuth oxybromide according to any one of claims 1 to 5, wherein the maximum radial dimension of the three-dimensional flower-like structure of bismuth oxybromide is 10 μm to 25 μm.
7. The three-dimensional flower-like structure of bismuth oxybromide of claim 6, wherein the three-dimensional flower-like structure of bismuth oxybromide is formed by self-assembly of bismuth oxybromide nanosheets having a thickness of 10nm to 50 nm.
8. Use of the three-dimensional flower-like structure of bismuth oxybromide according to any one of claims 6 to 7 in the field of photocatalysis.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102241415A (en) * | 2011-05-12 | 2011-11-16 | 上海师范大学 | Bismuth oxybromide particles with three-dimensional flower-like microstructure and preparation method and use thereof |
| CN103537303A (en) * | 2013-09-24 | 2014-01-29 | 合肥工业大学 | High-performance micro-nano multi-level structure BiOCl photocatalytic material and preparation method thereof |
| CN103736506A (en) * | 2013-12-30 | 2014-04-23 | 安徽师范大学 | Photocatalyst and preparation method and use thereof |
| CN104689838A (en) * | 2015-02-13 | 2015-06-10 | 湘潭大学 | Preparation method for BiOCl photocatalyst with controllable morphology and crystal face |
| CN105452169A (en) * | 2013-08-05 | 2016-03-30 | 耶路撒冷希伯来大学伊萨姆研究开发有限公司 | Zeolite, and production method and use therefor |
-
2019
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102241415A (en) * | 2011-05-12 | 2011-11-16 | 上海师范大学 | Bismuth oxybromide particles with three-dimensional flower-like microstructure and preparation method and use thereof |
| CN105452169A (en) * | 2013-08-05 | 2016-03-30 | 耶路撒冷希伯来大学伊萨姆研究开发有限公司 | Zeolite, and production method and use therefor |
| CN103537303A (en) * | 2013-09-24 | 2014-01-29 | 合肥工业大学 | High-performance micro-nano multi-level structure BiOCl photocatalytic material and preparation method thereof |
| CN103736506A (en) * | 2013-12-30 | 2014-04-23 | 安徽师范大学 | Photocatalyst and preparation method and use thereof |
| CN104689838A (en) * | 2015-02-13 | 2015-06-10 | 湘潭大学 | Preparation method for BiOCl photocatalyst with controllable morphology and crystal face |
Non-Patent Citations (2)
| Title |
|---|
| 卤氧化铋及其复合物光催化剂的低温合成与性能研究;张可可;《中国优秀硕士学位论文全文数据库》;20170715;全文 * |
| 溴氧化铋和硒碲化合物微纳米材料的可控合成和表征;肖培培;《中国博士学位论文全文数据库》;20110915;参见正文第29、33、40-43页 * |
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