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Preparation of TiO2/ZnO composite catalysts and their photocatalytic activity for degradation of pentachlorophenol

Juan Xie (Hebei University of Engineering, Handan, China)
Yongjing Hao (College of Science, Hebei University of Engineering, Handan, China)
Meixia Li (College of Equipment Manufacturing, Hebei University of Engineering, Handan, China)
Yiwei Lian (College of Science, Hebei University of Engineering, Handan, China)
Li Bian (College of Science, Hebei University of Engineering, Handan, China)

World Journal of Engineering

ISSN: 1708-5284

Article publication date: 7 August 2017

Abstract

Purpose

This paper aims to report a novel preparation method of titanium dioxide (TiO2)/zinc oxide (ZnO) composites with different mole ratios of TiO2:ZnO and their photocatalytic activity.

Design/methodology/approach

TiO2/ZnO composites are prepared by a facile route. X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM) and ultra-violet–visible diffuse reflectance spectra (UV-vis DRS) are used to characterize the products. Photocatalytic activity of the samples is evaluated by degradation of persistent organic pollutant pentachlorophenol under ultra-violet (UV) irradiation.

Findings

It is found that all the as-prepared TiO2/ZnO composites not only have good catalytic activity under UV light irradiation, but also have excellent circulation stability. The optimal mole ratio of TiO2:ZnO is 0.75:1.

Originality/value

This report presents a simple and rapid method for the preparation of TiO2/ZnO composites with excellent photocatalytic activity. Experimental results could provide useful reference for the treatment of chlorophenols in the future.

Keywords

Citation

Xie, J., Hao, Y., Li, M., Lian, Y. and Bian, L. (2017), "Preparation of TiO2/ZnO composite catalysts and their photocatalytic activity for degradation of pentachlorophenol", World Journal of Engineering, Vol. 14 No. 4, pp. 279-283. https://doi.org/10.1108/WJE-08-2016-0066

Publisher

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Emerald Publishing Limited

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