Photocatalytic Degradation of Rhodamine B with H3PW12O40/SiO2 Sensitized by H2O2
In order to remove aquatic organic dye contaminants by utilizing the inexpensive and inexhaustible solar energy, the Keggin-type H3PW12O40 was loaded on the surface of SiO2 with the sol-gel method and sensitized by H2O2 solution. The photocatalytic degradation of rhodamine B (RhB) by H3PW12O40/SiO2...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2012/927132 |
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| _version_ | 1849685046251749376 |
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| author | Shuijin Yang Yongkui Huang Yunzhi Wang Yun Yang Mingbo Xu Guohong Wang |
| author_facet | Shuijin Yang Yongkui Huang Yunzhi Wang Yun Yang Mingbo Xu Guohong Wang |
| author_sort | Shuijin Yang |
| collection | DOAJ |
| description | In order to remove aquatic organic dye contaminants by utilizing the inexpensive and inexhaustible solar energy, the Keggin-type H3PW12O40 was loaded on the surface of SiO2 with the sol-gel method and sensitized by H2O2 solution. The photocatalytic degradation of rhodamine B (RhB) by H3PW12O40/SiO2(x) under simulated natural light irradiation was investigated. The effects of the initial RhB concentration, the solution pH, and catalyst dosage on the photocatalytic degradation rate of RhB were also studied. The results demonstrated that at optimal condition (initial concentration of methyl orange is 10 mg/L, catalyst dosage is 0.8 g, and the pH is 2.5) the degradation rate of RhB is as high as 97.7% after 2 h under simulated natural light irradiation. The reaction of photocatalysis for RhB can be expressed as a first-order kinetic model. |
| format | Article |
| id | doaj-art-b9a2ce618c0649f3b7bf957172538dd2 |
| institution | DOAJ |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-b9a2ce618c0649f3b7bf957172538dd22025-08-20T03:23:16ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2012-01-01201210.1155/2012/927132927132Photocatalytic Degradation of Rhodamine B with H3PW12O40/SiO2 Sensitized by H2O2Shuijin Yang0Yongkui Huang1Yunzhi Wang2Yun Yang3Mingbo Xu4Guohong Wang5Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Environmental Engineering, Hubei Normal University, Huangshi 435002, ChinaHubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Environmental Engineering, Hubei Normal University, Huangshi 435002, ChinaHubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Environmental Engineering, Hubei Normal University, Huangshi 435002, ChinaHubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Environmental Engineering, Hubei Normal University, Huangshi 435002, ChinaHubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Environmental Engineering, Hubei Normal University, Huangshi 435002, ChinaHubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Environmental Engineering, Hubei Normal University, Huangshi 435002, ChinaIn order to remove aquatic organic dye contaminants by utilizing the inexpensive and inexhaustible solar energy, the Keggin-type H3PW12O40 was loaded on the surface of SiO2 with the sol-gel method and sensitized by H2O2 solution. The photocatalytic degradation of rhodamine B (RhB) by H3PW12O40/SiO2(x) under simulated natural light irradiation was investigated. The effects of the initial RhB concentration, the solution pH, and catalyst dosage on the photocatalytic degradation rate of RhB were also studied. The results demonstrated that at optimal condition (initial concentration of methyl orange is 10 mg/L, catalyst dosage is 0.8 g, and the pH is 2.5) the degradation rate of RhB is as high as 97.7% after 2 h under simulated natural light irradiation. The reaction of photocatalysis for RhB can be expressed as a first-order kinetic model.http://dx.doi.org/10.1155/2012/927132 |
| spellingShingle | Shuijin Yang Yongkui Huang Yunzhi Wang Yun Yang Mingbo Xu Guohong Wang Photocatalytic Degradation of Rhodamine B with H3PW12O40/SiO2 Sensitized by H2O2 International Journal of Photoenergy |
| title | Photocatalytic Degradation of Rhodamine B with H3PW12O40/SiO2
Sensitized by H2O2 |
| title_full | Photocatalytic Degradation of Rhodamine B with H3PW12O40/SiO2
Sensitized by H2O2 |
| title_fullStr | Photocatalytic Degradation of Rhodamine B with H3PW12O40/SiO2
Sensitized by H2O2 |
| title_full_unstemmed | Photocatalytic Degradation of Rhodamine B with H3PW12O40/SiO2
Sensitized by H2O2 |
| title_short | Photocatalytic Degradation of Rhodamine B with H3PW12O40/SiO2
Sensitized by H2O2 |
| title_sort | photocatalytic degradation of rhodamine b with h3pw12o40 sio2 sensitized by h2o2 |
| url | http://dx.doi.org/10.1155/2012/927132 |
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