Hydrogenation and Ammoniation of SrTiO3 for an Enhanced Visible-light Photocatalysis  

氧化和氨化对SrTiO3的可见光催化增强

作　　者：孙涛[1] 赵有源[1] 陆明[1] 

机构地区：[1]复旦大学光科学与工程系教育部微纳光了晶体重点实验室,上海200433

出　　处：《Chinese Journal of Chemical Physics》2012年第1期86-90,I0004,共6页化学物理学报（英文）

摘　　要：Hydrogenation and ammoniation of SrTiOa （STO）, a normal ultraviolet photocatalyst, were performed by annealing STO（100） in Hz：N2=5%：95% and NH3, respectively, at various temperatures T. It was found that hydrogenation at T≥900℃ remarkably enhanced the UV photocatalytic ability of STO, but the visible-light photocatalysis was still unavailable, while ammoniation at T≥800℃ introduced the N doping, resulting in visible-light photocat- alytie activity. Furthermore, when a hydrogenated STO was subjected to ammoniation, the visible-light photocatalytie ability was nearly the same as that of the ammoniated one; but the hydrogenation of an ammoniated one significantly enhanced visible-light photoeatalysis, indicating a synergetic effect of hydrogenation and ammoniation. Discussions and identifications have been made to analyze these results.

关 键 词：SRTIO3 HYDROGENATION AMMONIATION PHOTOCATALYSIS Synergetic effect 

分 类 号：O[理学]