Research Journal of Science and Technology

Deependra Kumar Sharma ¹, Ashish Bansal ¹, Rakshit Ameta ², H. S. Sharma ³

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

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.

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