Preparation and Modification by Ag of Solid Superacid Nano- SO<2-><,4>~TiO<,2> Photocatalyst

摘要：

Solid superacid nano-SO<2-><,4>～TiO<,2> powder photocatalyst were prepared by a sol-gel method using Ti(OC<,4>H<,9>)<,4> as raw material and adding 49％ sulfuric acid into the original liquid. Then the modified SO<2-><,4>/Ag～TiO<,2> photocatalyst was prepared by AgNO<,3>. The prepared samples were characterized with UV-vis, IR, XRD and BET measurements. The photocatalytic reactivities of samples were evaluated using methyl orange and phenol aqueous solution as simulate contamination. The results showed that the photocatalytic reactivity of SO<2-><,4>～TiO<,2> is 10 times higher than that of unmodified TiO<,2> and the photocatalytic reactivity of SO<2-><,4>/Ag～TiO<,2> is even higher than that of P25.

关键词： TiO<,2> modification Ag solid superacid photocatalytic activity methyl orange phenol

作者: Hong Liu Pan Liu Kongliang Gu Jing Li Xuan Sun

作者单位: Department of Environmental Engineering, Wuhan University of Science and Technology, China

会议类型: 国际会议

会议名称: 2006现代科技国际研讨会(The International Workshop on Modern Science and Technology in 2006)

会议地点: 北京

会议语种:英文

页码: 140-145

在线出版日期: 2006-04-01（万方平台首次上网日期，不代表论文的发表时间）