Photoelectrocatalytic Oxidation of Methyl Orange in KCI Solution

Feng Qi Li; Wen Jie Zhang

doi:10.4028/www.scientific.net/AMR.424-425.981

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 424-425Photoelectrocatalytic Oxidation of Methyl Orange...

Photoelectrocatalytic Oxidation of Methyl Orange in KCI Solution

Abstract:

When potential was less than 1.2 V, electro-degradation rate was not more than 1.2% on both the films prepared using PEG or not. The film prepared with addition of PEG showed better degradation rates in the whole potential range than the film prepared without using of PEG. The highest degradation rates existed at 1.1 V of applied potential for both of the film electrodes, where degradation rate on film with PEG was 93.6% and the rate was 92.2% on the film without PEG. Methyl orange degradation rates increased with increasing KCl concentration from 0 to 0.7 mol/l, while degradation rates dropped down at even higher potential. Degradation rates increased with prolonged irradiation time for both of the two film electrodes.