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Citation: Wang Junzhen, Gu Fengcai, Yan Xiuru, Wang Jianping, Zeng Shulan. Photodegradation of Water-Soluble Dyes in PbTiO₃ System[J]. Chinese Journal of Applied Chemistry, ;1995, 12(6): 29-32. shu

Photodegradation of Water-Soluble Dyes in PbTiO₃ System

Department of Chemistry, Tianjin University, Tianjin 300072

Received Date: 6 February 1995
Revised Date: 22 July 1995

The photocatalytic destruction and decolorization of several water-soluble dyes under natural sun light and 450W high pressure Hg-lamp irradiation in the presence of photo-catalyst PbTiO₃ were studied. The experiments show that the efficiency of decolorization is related to the pH value of dye solution,irradiation time,as well as the intensity of irradia-tion. After irradiation with sun light for 1h,the decolorizing efficiency was up to 90% when the concentration of dyes was 10mg/L and the amount of catalyst was 100mg in 50mL dye solution.
- water-soluble dye,
- photocatalytic destruction,
- PbTiO₃,
- band gap
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Photodegradation of Water-Soluble Dyes in PbTiO₃ System