Structure and catalytic performance of Zn-doped TiO₂ film

Abstract

Purpose

This paper aims to investigate the photocatalytic activity of zinc doped MAO-TiO₂ films under the optimum MAO treatment condition.

Design/methodology/approach

The coating was prepared by micro arc oxidation, and the influence of doping on the properties of the coating was also investigated.

Findings

The results show that the BET surface area is 78.25±0.03m²/g, total pore area is 76.32 ± 0.04m²/g, and the total pore volume is 0.2135 ± 0.0004cm³/g. The degradation ratio of the film electrode with Zn-doped in methyl orange solution is up to 94%. When the react circles is 10 times, the degradation ratio is up to more than 85% and remains steady. With the different reaction conditions, these kinetics of the reactions show some different formulas.

Originality/value

A kinetic equation for photocatalytic activity is established.

Citation

Yang, M., Huang, T., Tang, N., Ou, B. and Zhang, W. (2019), "Structure and catalytic performance of Zn-doped TiO₂ film", Pigment & Resin Technology, Vol. 48 No. 6, pp. 508-514. https://doi.org/10.1108/PRT-06-2018-0054