标题：Characterization and Photocatalytic Activity of N, Cd-Codoped TiO2
作者：Gao, Hongtao; Liu, Yuanyuan; Zhao, Xian
作者机构：[Gao, Hongtao; Zhao, Xian] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China.; [Gao, Hongtao] Jining Univ, Dept Chem & Chem En 更多
会议名称：China Postdoctoral Forum on Materials Science and Engineering
会议日期：OCT 19-21, 2010
来源：CHINA POSTDOCTORAL FORUM ON MATERIALS SCIENCE AND ENGINEERING
关键词：TiO2; photocatalyst; codoping; photocatalytic activity
摘要：N, Cd-codoped TiO2 has been synthesized by sol-gel method coupling with thermolysis. The products were characterized by XRD, SEM, UV-visible DRS, XPS and BET analysis, respectively. The photocatalytic activities of samples were evaluated on the degradation of methyl orange (MO). It was showed that particle sizes of anatase photacatalysts were about 10-15 nm. The maximum specific surface area of the products was 102.7 m(2).g(-1) N atoms were incorporated into the TiO2 crystal lattice, while Cd atoms existed on the crystal surface. The optical absorption edge of N, Cd-codoped TiO2 was 435 nm, which illustrated that the product represented photoactivity in the visible region. It indicated a strong N-Cd synergistic interaction appeared to play a decisive role in driving the excellent photoactivity performance of N,Cd-codoped TiO2.