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CdS、Ag+掺杂改性纳米TiO2光催化降解有机物研究

Research on Photocatalytic Degrading Organic Material of Nano-TiO2 Modified by CdS,Ag+

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【作者】 李琴李世萍项鹏志刘龙江

【Author】 LI Qin~(1,2),LI Shiping~1,XIANG Pengzhi~1,LIU Longjiang~1 (1 Faculty of Chemical Engineering,Yunnan Radio and Television University,Kunming 650223; 2 Faculty of Environmental Engineering,Kunming University of Science and Technology,Kunming 650093)

【机构】 云南广播电视大学化学工程学院昆明理工大学环境工程学院

【摘要】 在理论分析的基础上对纳米TiO2分别进行掺CdS和掺银改性实验研究。采用XRD和粒度分析技术对改性后的样品进行表征,并以掺杂CdS、Ag+纳米TiO2进行光催化降解甲基橙模拟实验。结果表明,掺杂CdS、Ag+纳米TiO2在可见光范围内降解有机物的效率有较大提高。

【Abstract】 The experimental investigation on nano-TiO2 property modified with CdS,Ag+ doping was carried out based on the theoretical analysis.The property of the modified nano-TiO2 was characterized with XRD and grading methods.The appraisal of the effects of TiO2 properties modified with the two doping substances was made on the experiment by the doped nano-TiO2 photocatalytic degrading methyl hesperidin.The results show that efficiency of degrading organic substance with doped nano-TiO2 within visible light spectrum is greatly improved,and the degrading efficiency of photocatalysis with CdS is higher than that doped nothing.

【关键词】 纳米TiO2光催化掺杂电子-空穴
【Key words】 nano-TiO2photocatalysisdopingelectron-cavity
【基金】 云南省教育厅基金项目(09C0014)
  • 【文献出处】 材料导报 ,Materials Review , 编辑部邮箱 ,2011年S1期
  • 【分类号】TB383.1
  • 【被引频次】6
  • 【下载频次】226
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