Journal of Advances in Nanomaterials

Download PDF (494 KB) PP. 146 - 152 Pub. Date: September 20, 2017

DOI: 10.22606/jan.2017.23002

• Yongkui Huang
  Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering, Institute for Advanced Materials, Hubei Normal University, Huangshi, Hubei, 435002, China
• Zhiyuan Yang
  Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering, Institute for Advanced Materials, Hubei Normal University, Huangshi, Hubei, 435002, China
• Shuijin Yang^*
  Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering, Institute for Advanced Materials, Hubei Normal University, Huangshi, Hubei, 435002, China
• Yulin Xu
  Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering, Institute for Advanced Materials, Hubei Normal University, Huangshi, Hubei, 435002, China

H₃PW₁₂O₄₀/SiO₂ was prepared by a sol-gel method, and sensitized by H₂O₂ solution. Their photocatalytic effects on degradation of organic dyes were investigated under simulated natural light irradiation. Degradation of methyl orange was used as a probe reaction to explore the influencing factors of the photodegradation reaction. After used continuously for five times, the catalytic activity of the photocatalyst is not any lower. The photodegradation of methyl orange, methyl red, methyl violet, rhodamine B, malachite green and methylene blue were also tested, and the degradation rate of dyes can reach 84.6 %~98.3 %. It was found that the photodegradation reaction belongs to the first-order kinetic reaction.

Polyoxometalate, SiO₂, photocatalytic degradation, dye pollutant.

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