Photocatalytic Degradation of Rhodamine B with H3PW12O40/SiO2 Sensitized by H2O2

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: Shuijin Yang, Yongkui Huang, Yunzhi Wang, Yun Yang, Mingbo Xu, Guohong Wang
Format: Article
Language:English
Published: Hindawi Limited 2012-01-01
Series:International Journal of Photoenergy
Online Access:http://dx.doi.org/10.1155/2012/927132
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spelling doaj-b9a2ce618c0649f3b7bf957172538dd22020-11-24T23:58:10ZengHindawi LimitedInternational 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
collection DOAJ
language English
format Article
sources DOAJ
author Shuijin Yang
Yongkui Huang
Yunzhi Wang
Yun Yang
Mingbo Xu
Guohong Wang
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
author_facet Shuijin Yang
Yongkui Huang
Yunzhi Wang
Yun Yang
Mingbo Xu
Guohong Wang
author_sort Shuijin Yang
title 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_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_sort photocatalytic degradation of rhodamine b with h3pw12o40/sio2 sensitized by h2o2
publisher Hindawi Limited
series International Journal of Photoenergy
issn 1110-662X
1687-529X
publishDate 2012-01-01
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.
url http://dx.doi.org/10.1155/2012/927132
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