CdS、Ag^+掺杂改性纳米TiO_2光催化降解有机物研究  

Research on Photocatalytic Degrading Organic Material of Nano-TiO_2 Modified by CdS,Ag^+

作　　者：李琴[1,2] 李世萍[1] 项鹏志 刘龙江[1] 

机构地区：[1]云南广播电视大学化学工程学院,昆明650223 [2]昆明理工大学环境工程学院,昆明650093

出　　处：《材料导报（纳米与新材料专辑）》2011年第1期70-72,共3页

基　　金：云南省教育厅基金项目(09C0014)

摘　　要：在理论分析的基础上对纳米TiO_2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TiO_2进行光催化降解甲基橙模拟实验。结果表明,掺杂CdS、Ag^+纳米TiO_2在可见光范围内降解有机物的效率有较大提高。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-TiOz 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 

分 类 号：O643.36[理学—物理化学]