JP2017536971A - 可視光活性光触媒タイル - Google Patents
可視光活性光触媒タイル Download PDFInfo
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Abstract
Description
製造例1:多孔性セラミックタイルの製造
水酸化アルミニウム(Al(OH)3)を固形分基準20重量%を含む組成物を準備してボールミルを通じて粉砕し、これによって得られたスラリーを噴霧乾燥工程を通じて均一に混合することで、γ−アルミナ30重量%を含む顆粒粉末を製造した。次いで、前記顆粒粉末を乾式プレス成形して、平均粒子直径が10nmの気孔を0.1cm3/gの気孔体積で含む150mm×150mm×7mm(横×縦×厚さ)大きさの多孔性セラミックタイルを製造した。
酸化タングステン(WO3)粉末を水に分散させた後、その溶液に酸化タングステン(WO3)100重量部対比0.2重量部の塩化白金酸(H2PtCl6)を添加してPt/WO3スラリーを製造した。前記スラリーを撹拌しながらUVランプ(20W)のUVを30分くらい照射して白金(Pt)粒子を前記酸化タングステン(WO3)粒子内にドーピングした。その後、前記白金(Pt)粒子がドーピングされた酸化タングステン(WO3)粒子が含まれたスラリーに10重量%にあたるメタノール溶液を添加し、前記スラリーを撹拌しながらUVランプ(20W)のUVを30分くらい照射して白金(Pt)粒子が酸化タングステン(WO3)に担持された可視光活性光触媒粒子を製造した。
実施例1
前記製造例2の可視光活性光触媒粒子5重量%及び水95重量%を含むコーティング組成物を製造した。次いで、前記製造例1の多孔性セラミックタイルの一面に前記コーティング組成物を塗布し、乾燥して光触媒層を形成することで可視光活性光触媒タイルを製造した。
前記コーティング組成物を前記製造例1の多孔性セラミックタイルの代りに、気孔体積が0.01cm3/g未満で、150mm×150mm×7mm(横×縦×厚さ)大きさを持つタイルの一面に塗布し、乾燥して光触媒層を形成したことを除いて、前記実施例1と同様の方法で可視光活性光触媒タイルを製造した。
前記製造例2の可視光活性光触媒粒子5重量%、イソプロピルアルコール(IPA)90重量%、及びTiO2ゾルバインダー5重量%を含むコーティング組成物を製造したことを除いて、前記実施例1と同様の方法で可視光活性光触媒タイルを製造した。
前記製造例2の可視光活性光触媒粒子5重量%、イソプロピルアルコール(IPA)90重量%、及びTiO2ゾルバインダー5重量%を含むコーティング組成物を製造した。次いで、これを気孔体積が0.01cm3/g未満で、150mm×150mm×7mm(横×縦×厚さ)の大きさを有するタイルの一面に塗布し、乾燥して光触媒層を製造することで可視光活性光触媒タイルを製造した。
実験例1:トルエン除去率の測定
前記実施例及び比較例の可視光活性光触媒タイルに対し、これを20L体積の小型チャンバ(ADTEC社)内に設けた後、前記チャンバに0.2ppm濃度のトルエンを含む空気を167cc/minの流量で持続的に流し、換気回数が0.13回/hrになるようにした。光源としてはLED20Wモジュールを使用した。トルエン除去率は、チャンバに入る前のトルエン濃度(以下、第1濃度)とチャンバを通過した後の空気中のトルエン濃度(以下、第2濃度)を測定し、下記一般式1に従って計算した。濃度は、DNPH(2,4−ジニトロフェニルヒドラジン)カートリッジを利用して10Lの体積に対する量を濃縮し、HPLC(Agilent社)を通じて分析した。結果は、下記表1に記載したとおりである。
Claims (14)
- 多孔性セラミックタイル;及び
前記タイルの一面に水系溶媒及び可視光活性光触媒粒子を含むコーティング組成物に形成された光触媒層を含む、可視光活性光触媒タイル。 - 前記多孔性セラミックタイルは、平均直径が1nmないし10μmの気孔を含む、請求項1に記載の可視光活性光触媒タイル。
- 前記多孔性セラミックタイルの気孔体積は0.01cm3/g ないし0.2cm3/gである、請求項1に記載の可視光活性光触媒タイル。
- 前記多孔性セラミックタイルはγ−アルミナを含む、請求項1に記載の可視光活性光触媒タイル。
- 前記γ−アルミナは、窒化アルミニウム、炭酸アルミニウム、塩化アルミニウム、塩化アルミニウム二水和物、水酸化アルミニウム、アルミニウムクロリド、アルミニウムニトリド、アルミナゾル、及びこれらの組み合わせからなる群から選ばれる少なくとも一つのアルミニウムソースが相転移された物質を含む、請求項4に記載の可視光活性光触媒タイル。
- 前記多孔性セラミックタイルは、前記γ−アルミナを20ないし50重量%含む、請求項4に記載の可視光活性光触媒タイル。
- 前記コーティング組成物は、前記水系溶媒90ないし96重量%、及び前記可視光活性光触媒粒子4ないし10重量%を含む、請求項1に記載の可視光活性光触媒タイル。
- 前記水系溶媒は100重量%の水を含む、請求項1に記載の可視光活性光触媒タイル。
- 前記可視光活性光触媒粒子は、多孔性金属酸化物;及び前記多孔性金属酸化物に担持された金属粒子を含む、請求項1に記載の可視光活性光触媒タイル。
- 前記多孔性金属酸化物は、酸化チタン、酸化タングステン、酸化亜鉛、酸化ニオブ、及びこれらの組み合わせからなる群から選ばれる少なくとも一つを含む、請求項9に記載の可視光活性光触媒タイル。
- 前記金属粒子は、タングステン、クロム、バナジウム、モリブデン、銅、鉄、コバルト、マンガン、ニッケル、白金、金、銀、セリウム、カドミウム、亜鉛、マグネシウム、カルシウム、ストロンチウム、バリウム、及びこれらの組み合わせからなる群から選ばれる少なくとも一つを含む、請求項9に記載の可視光活性光触媒タイル。
- 前記可視光活性光触媒粒子は、前記多孔性金属酸化物を90重量%ないし99.9重量%含み、前記金属粒子を0.1重量%ないし10重量%含む、請求項9に記載の可視光活性光触媒タイル。
- 前記可視光活性光触媒粒子は、平均直径が50nmないし500nmである、請求項1に記載の可視光活性光触媒タイル。
- 前記コーティング組成物は、アルコール溶媒及びバインダーを含まない、請求項1に記載の可視光活性光触媒タイル。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020140127935A KR101942261B1 (ko) | 2014-09-24 | 2014-09-24 | 가시광 활성 광촉매 타일 |
| KR10-2014-0127935 | 2014-09-24 | ||
| PCT/KR2015/009955 WO2016048009A1 (ko) | 2014-09-24 | 2015-09-22 | 가시광 활성 광촉매 타일 |
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| Publication Number | Publication Date |
|---|---|
| JP2017536971A true JP2017536971A (ja) | 2017-12-14 |
| JP6457077B2 JP6457077B2 (ja) | 2019-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2017516076A Ceased JP6457077B2 (ja) | 2014-09-24 | 2015-09-22 | 可視光活性光触媒タイル |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20170266650A1 (ja) |
| EP (1) | EP3199238A4 (ja) |
| JP (1) | JP6457077B2 (ja) |
| KR (1) | KR101942261B1 (ja) |
| CN (1) | CN106714964B (ja) |
| WO (1) | WO2016048009A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020044488A (ja) * | 2018-09-18 | 2020-03-26 | 株式会社東芝 | 光触媒複合材料、光触媒複合材料の製造方法および光触媒装置 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102383557B1 (ko) * | 2016-09-06 | 2022-04-05 | (주)엘엑스하우시스 | 복합재 및 이의 제조방법 |
| US12083477B2 (en) * | 2017-09-28 | 2024-09-10 | Sonata Scientific LLC | Photocatalytic fluid purification systems |
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| JP7096744B2 (ja) | 2018-09-18 | 2022-07-06 | 株式会社東芝 | 光触媒複合材料、光触媒複合材料の製造方法および光触媒装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016048009A1 (ko) | 2016-03-31 |
| EP3199238A1 (en) | 2017-08-02 |
| US20170266650A1 (en) | 2017-09-21 |
| KR20160036192A (ko) | 2016-04-04 |
| CN106714964A (zh) | 2017-05-24 |
| JP6457077B2 (ja) | 2019-01-23 |
| CN106714964B (zh) | 2020-08-07 |
| KR101942261B1 (ko) | 2019-01-28 |
| EP3199238A4 (en) | 2017-09-27 |
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