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Decolorization and Photo Degradation of Methylene Blue with the Help of Bismuth Oxide and Bismuth Sulphide Used as Photocatalytic:A Comparative Study


Affiliations
1 Department of Chemistry, Govt. College Kota (Raj.), India
2 Department of Chemistry, Pacific College of Basic & Applied Sciences, PAHER University, Udaipur - 313001 (Raj.), India
3 Department of Chemistry, Govt. College, Bundi (Raj.), India
     

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Bi2O3 and Bi2S3 catalyzed photocatalytic degradation of methylene blue dye has been investigated. The effect of various parameters, such as the pH, concentration of dyes, effect of amount of semiconductor and effect of light intensity etc. were observed and discussed. The progress of the photochemical oxidation was monitored spectrophotometrically. The optimum reaction conditions were experimentally determined. The photochemical oxidation of dyes follows pseudo - first kinetics. The final products of degradation were characterized and a tentative mechanism was proposed for the photochemical oxidation of dyes.

Keywords

Bismuth Oxide, Bismuth Sulphide, Methylene Blue, Photocatalysts.
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  • Decolorization and Photo Degradation of Methylene Blue with the Help of Bismuth Oxide and Bismuth Sulphide Used as Photocatalytic:A Comparative Study

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Authors

Deependra Kumar Sharma
Department of Chemistry, Govt. College Kota (Raj.), India
Ashish Bansal
Department of Chemistry, Govt. College Kota (Raj.), India
Rakshit Ameta
Department of Chemistry, Pacific College of Basic & Applied Sciences, PAHER University, Udaipur - 313001 (Raj.), India
H. S. Sharma
Department of Chemistry, Govt. College, Bundi (Raj.), India

Abstract


Bi2O3 and Bi2S3 catalyzed photocatalytic degradation of methylene blue dye has been investigated. The effect of various parameters, such as the pH, concentration of dyes, effect of amount of semiconductor and effect of light intensity etc. were observed and discussed. The progress of the photochemical oxidation was monitored spectrophotometrically. The optimum reaction conditions were experimentally determined. The photochemical oxidation of dyes follows pseudo - first kinetics. The final products of degradation were characterized and a tentative mechanism was proposed for the photochemical oxidation of dyes.

Keywords


Bismuth Oxide, Bismuth Sulphide, Methylene Blue, Photocatalysts.