Adsorption and Photocatalytic Degradation of Methyl Orange on TiO2 and CuZSM-5 Mixture

Abstract:

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TiO2 and CuZSM-5 were mixed together as photocatalyst in dealing with photocatalytic degradation of methyl orange. Adsorption and photocatalytic degradation properties of the CuZSM-5 zeolite and mixture of TiO2 and CuZSM-5 were investigated. The CuZSM-5 zeolite has no photocatalytic activity under the experimental conditions. Methyl orange decoloration rate was 65.4%, which was 9.60% higher than that without using CuZSM-5, when TiO2 and CuZSM-5 were at the optimum ratio of 3.13:1. An optimum TiO2 concentration of 250 mg/l occurred when using pure TiO2. However, when using TiO2-CuZSM-5 mixture, the decoloration rate continuously increased with increasing photocatalyst concentration. After 70 min of irradiation, 98.4% of the initial methyl orange decoloration was found using TiO2-CuZSM-5 mixture at TiO2 concentration of 250 mg/l.

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Periodical:

Edited by:

Zhixiang Hou

Pages:

149-152

DOI:

10.4028/www.scientific.net/AMM.48-49.149

Citation:

L. L. Yang et al., "Adsorption and Photocatalytic Degradation of Methyl Orange on TiO2 and CuZSM-5 Mixture", Applied Mechanics and Materials, Vols. 48-49, pp. 149-152, 2011

Online since:

February 2011

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$35.00

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