Photocatalytic Degradation of Methyl Violet with H3PW6Mo6O40/SiO2 Sensitized by H2O2

Guo Bin Duan; Yong Kui Huang; Li Yu; Shui Jin Yang

doi:10.4028/www.scientific.net/AMR.709.70

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 709Photocatalytic Degradation of Methyl Violet with...

Photocatalytic Degradation of Methyl Violet with H₃PW₆Mo₆O₄₀/SiO₂ Sensitized by H₂O₂

Abstract:

H₃PW₆Mo₆O₄₀/SiO₂ was prepared by sol-gel method, and sensitized by H₂O₂ solution. The photocatalytic degradation of methyl violet by H₃PW₆Mo₆O₄₀/SiO₂ under simulated natural light irradiation was investigated. The results demonstrated that at optimal condition (initial concentration of methyl violet is 10 mg/L, and the pH is 2.5, the dosage of catalyst is 0.5% based on feed stocks), the degradation rate of methyl violet is as high as 88.7 % after 2.5h simulated natural light irradiation. The reaction of photocatalysis for methyl violet can be expressed as first-order kinetic model.

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Periodical:

Advanced Materials Research (Volume 709)

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70-73

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.709.70

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Online since:

June 2013

Authors:

Guo Bin Duan, Yong Kui Huang, Li Yu, Shui Jin Yang

Keywords:

Methyl Violet, Photocatalytic Degradation, Polyoxometalates, SiO₂, Support

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