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Synthesis and photocatalytic activity of one-dimensional ZnO-Zn2SnO4 mixed oxide nanowires
Bai Xuelian #,Pan Nan,Wang Xiaoping,Wang Haiqian *
Hefei National Laboratory for Physical Sciences at the Microscale
*Correspondence author
#Submitted by
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Funding: 教育部博士点基金,国家自然科学基金,国家自然科学基金（No.20040358059,50121202,90406009）
Opened online:27 December 2007
Accepted by: none
Citation: Bai Xuelian ,Pan Nan,Wang Xiaoping.Synthesis and photocatalytic activity of one-dimensional ZnO-Zn2SnO4 mixed oxide nanowires[OL]. [27 December 2007] http://en.paper.edu.cn/en_releasepaper/content/17488
 
 
Mixed oxide photocatalysts, ZnO-Zn2SnO4 (ZnO-ZTO) nanowires with different sizes were prepared by a simple thermal evaporation method. The photocatalytic activity of the ZnO-ZTO mixed nanowires were studied by observing the photodegradation behaviors of methyl orange (MO) aqueous solution. The results suggest that the ZnO-ZTO mixed oxide nanowires have a higher photocatalytic activity than pure ZnO and Zn2SnO4 nanowires. The photocatalyst concentration in the solution distinctly affect the degradation rate, and our results show that higher photodegradation efficiency can be achieved with a smaller amount of ZnO-ZTO nanowire catalyst, as compared to the pure ZnO and ZTO nanowires. Moreover, the photocatalytic activity can also be enhanced by reducing the average diameter of the nanowires. The activity of pure ZnO and ZTO nanowires are also enhanced by physically mixing them. These results can be explained by the synergism between the two semiconductors.
Keywords:ZnO; Zn2SnO4; nanowire; photocatalytic activity; photodegradation
 
 
 

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