Sn^(4+)掺杂对TiO_2纳米颗粒膜光催化降解苯酚活性的影响  

Effect of Sn-doping on Photocatalytic Activity of TiO_2 Film for Degradation of Phenol

作　　者：曹亚安[1] 沈东方[2] 张昕彤[3] 孟庆巨[4] 马颖[1] 吴志芸[3] 白玉白[3] 李铁津 姚建年[1] 

机构地区：[1]中国科学院化学研究所分子科学中心,北京100101 [2]中国人民解放军空军第二航空学院,长春130022 [3]吉林大学化学系,长春130023 [4]吉林大学电子科学系,长春130023

出　　处：《高等学校化学学报》2001年第11期1910-1912,共3页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金 (批准号 :5 96 2 0 16 7);中国科学院重大基础研究项目资助

摘　　要：We prepared TiO 2(anatase) and Sn doped TiO 2 nanoparticlate film by Plasma enhanced Chemical Vapor Deposition(PECVD) method. XRD and XPS experiments showed that Sn was doped into the lattice of TiO 2 with a ratio of n (Sn)∶ n (Ti)=1∶10 . Sn doping largely enhanced the photocatalytic activity of TiO 2 film for phenol degradation. The enhancement in photoactivity by doping was discussed, based on the characterization with AFM, FTIR and EFISPS. Sn doping produced localized level of Sn 4+ in the band gap of TiO 2, about 0.4 eV below the conduction band, which could capture photogenerated electrons and reduce O 2 adsorbed on the surface of TiO 2 film, thus accelerated the photocatalytic reaction.We prepared TiO 2(anatase) and Sn doped TiO 2 nanoparticlate film by Plasma enhanced Chemical Vapor Deposition(PECVD) method. XRD and XPS experiments showed that Sn was doped into the lattice of TiO 2 with a ratio of n (Sn)∶ n (Ti)=1∶10 . Sn doping largely enhanced the photocatalytic activity of TiO 2 film for phenol degradation. The enhancement in photoactivity by doping was discussed, based on the characterization with AFM, FTIR and EFISPS. Sn doping produced localized level of Sn 4+ in the band gap of TiO 2, about 0.4 eV below the conduction band, which could capture photogenerated electrons and reduce O 2 adsorbed on the surface of TiO 2 film, thus accelerated the photocatalytic reaction.

关 键 词：PECVD TiO2纳米颗粒膜 掺杂 光催化 降解 苯酚 催化活性 二氧化钛 催化剂 

分 类 号：O625.312[理学—有机化学] O643.361[理学—化学]