Preparation and Photocatalytic Activity of Zn-TiO2/AC Catalysts

doi:10.7517/j.issn.1674-0475.2004.04.266

Abstract

Abstract: The supported photocatalyst TiO₂/AC doping with Zn²⁺ was prepared by means of vacuum absorption-hydrolysis method.The catalyst was characterized by XRD and TEM.The photocatalytic activity of samples was evaluated by the photodegradation of Cl₃CCOOH.The result shows that the photocatalytic activities were significantly increased when the supported catalyst was doped with Zn²⁺ at optimal concentration (0.5 at.%).The highest photodegradation activity Cl₃CCOOH can be reached under condition of Zn-TiO₂/AC catalyst treated at 400 ℃ for 2 hours and pH=6 for the reaction solution.

Key words: TiO₂, Zn-doping, actived carbon, photodegradation, trichloroacetic acid

CLC Number:

WU Zun-yi, DU Yu-kou, HUA Nan-ping, SHEN Ming, YANG Ping. Preparation and Photocatalytic Activity of Zn-TiO₂/AC Catalysts[J]. Imaging Science and Photochemistry, 2004, 22(4): 266-271.

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Preparation and Photocatalytic Activity of Zn-TiO₂/AC Catalysts

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