Photoelectrocatalytic Oxidation of Methyl Orange in KNO₃ Solution

Abstract:

Photoelectrocatalytic oxidation of methyl orange on TiO₂ films were investigated in KNO₃ solution. In the potential range up to 1.2 V, electro-degradation rates were fairly low that was less than 1%. Degradation rates on the two films were larger at higher potentials. The film prepared without PEG showed better activities than the film prepared with PEG during the whole range of potential. Methyl orange degradation rate increased with increasing KNO₃ concentration from 0 to 0.010 mol/l. After 120 min of irradiation, methyl orange degradation rate on the film with PEG was 89.5%, while degradation rate on the film without PEG was 92.0% after the same period.

• Periodical: Advanced Materials Research (Volumes 424-425)
• Pages: 1044-1047
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.424-425.1044
• Online since: January 2012
• Authors: Ying Tao Song, Wen Jie Zhang
• Keywords: KNO₃, Methyl Orange (MO), Photoelectrocatalytic, TiO₂ Film

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