TiO_2/SnO_2光催化剂的制备及硫磷农药废水催化降解

摘要在采用溶胶-凝胶法制备SnO2溶胶的基础上,制备出表面Ti/Sn原子比为85∶15(XPS全谱分析)的TiO2/SnO2复合体光催化剂;用于硫磷农药废水的降解,试验结果表明:复合体光催化剂比单一TiO2催化剂的催化活性要高,其原因是由于复合TiO2/SnO2催化剂中SnO2可接收电子,减少了TiO2电子-空穴对的复合,从而提高其催化活性。

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	黄丽
	张昊
	谭欣

关键词： TiO2/SnO2 光催化复合体光催化剂溶胶-凝胶技术

Abstract： Based on preparation of SnO_2 sol by sol-gel method,nano-meter photocatalytic compound of TiO_2/SnO_2 was prepared and the atom ratio of titanium to tin on the surface is 85∶15(by XPS analysis).The photocatalytic compound was used to degrade the pesticide waste of parathion and the experimental results indicated that the photocatalytic activity of photocatalytic compound is higher than that of TiO_2.Probably the reason is that the SnO_2 in TiO_2/SnO_2 photocatalytic compound formed the transferring place for electron,decreased the composition of electron-cavity,then enhanced the photocatalytic properties of the photocatalytic compound.

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Received 2006-09-15; published 2006-09-15

引用本文:

黄丽;张昊;谭欣;.TiO_2/SnO_2光催化剂的制备及硫磷农药废水催化降解[J]. 化学工业与工程, 2006,23(5): 382-384

HUANG Li,ZHANG Hao,TAN Xin.Preparation of Nano-meter Photocatalytic Compound of TiO_2/SnO_2 and Its Degradability of the Pesticide Waste of Parathion[J]. Chemcial Industry and Engineering, 2006,23(5): 382-384

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