Photocatalytic degradation of textile dye X-3B using polyoxometalate-TiO2 hybrid materials
| Autor: | Qingyin Wu, Wenqin Pang, Hongxiao Jin |
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| Rok vydání: | 2005 |
| Předmět: |
Titanium
Environmental Engineering Materials science Photolysis Health Toxicology and Mutagenesis Tungsten Compounds Pollution Waste Disposal Fluid Titanium oxide Keggin structure chemistry.chemical_compound chemistry Naphthalenesulfonates Polyoxometalate Titanium dioxide Photocatalysis Environmental Chemistry Organic chemistry Reactivity (chemistry) Hybrid material Waste Management and Disposal Azo Compounds Waste disposal Nuclear chemistry |
| Zdroj: | Journal of hazardous materials. 141(1) |
| ISSN: | 0304-3894 |
| Popis: | Titanium dioxide functionalized with Keggin type polyoxometalate (POMs) [X(n+)W(12)O(40)]((8-n)-) (XW(12); X(n+)=P(5+), Si(4+), Ge(4+)) were prepared by sol-gel method. The Keggin structure and dispersion state of POMs were monitored by FT-IR and XRD. The composites showed higher photocatalytic activity than pure TiO(2), pure POMs or mechanical mixture of TiO(2) and POMs for X-3B degradation. Among the three POMs-TiO(2) hybrid materials, the reactivity was: PW(12)>SiW(12)>GeW(12). With different loading weights for the same POMs, the reactivity followed the order: 30wt.%>15wt.%>45wt.%. |
| Databáze: | OpenAIRE |
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