Preparation of aluminum foil-supported nano-sized ZnO thin films and its photocatalytic degradation to phenol under visible light irradiation

被引:116
作者
Peng, Feng [1 ]
Wang, Hongjuan [1 ]
Yu, Hao [1 ]
Chen, Shuihui [1 ]
机构
[1] S China Univ Technol, Dept Chem Engn, Guangzhou 510640, Guangdong, Peoples R China
关键词
nanostructures; thin films; sol-gel chemistry; catalytic properties; TITANIUM-DIOXIDE; ORGANIC POLLUTANTS; WASTE-WATER; TIO2;
D O I
10.1016/j.materresbull.2006.03.029
中图分类号
T [工业技术];
学科分类号
120111 [工业工程];
摘要
The zinc oxide thin films on aluminum foil have been successfully prepared by sol-gel method with methyl glycol as solvent. The film was characterized by means of XRD, TG, UV-vis, SEM and AFM, which show that the ZnO/Al film is formed by a layer of ZnO nano-sized particles with average diameter of 52.2 nm. Under the initial concentration of 20 mg/L phenol solution (500 mL) and visible light irradiation time of 3 h, more than 40% of the initial phenol was totally mineralized using two pieces of ZnO/Al thin film as photocatalyst with an efficient irradiation area of 400 cm(2). It is a promising visible light responded photocatalyst for the activation of O-2 at room temperature to degrade organic pollutants. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码:2123 / 2129
页数:7
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