Controllable synthesis and photocatalytic activities of rod-shaped mesoporous titanosilicate composites with varied aspect ratios  

作　　者：Feng-Jiao Chen Chang-Wang Shao Min-Nan Zhao Zhao-Sheng Bu Yan Zhang Xiao-Nan Dai Guo-Wei Zhou 

机构地区：[1]Key Laboratory of Fine Chemicals in Universities of Shandong,School of Chemistry and Pharmaceutical Engineering,Qilu University of Technology [2]School of Chemical Engineering and Environment,Weifang University of Science and Technology

出　　处：《Chinese Chemical Letters》2014年第6期962-966,共5页中国化学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.20976100,51372124);the Natural Science Foundation of Shandong Province(Nos.ZR2010BM013, ZR2011BQ009);the Program for Scientific Research Innovation Team in Colleges and Universities of Shandong Province(No. 201207);Key Laboratory of Colloid and Surface Chemistry, Ministry of Education(Shandong University,No.201205)

摘　　要：Rod-shaped mesoporous titanosilicate composites （RMTSs） with controllable aspect ratios （ARs） were fabricated using cetyltrimethylammonium bromide （CTAB） and ammonium hydroxide （NH4OH） at a continuous stirring rate, resulting in ARs ranging from 1 to 5. Slowing the stirring rate or increasing the concentration of CTAB mainly impacted the length growth, whereas NH4OH affected the width growth. Photocatalytic activity studies revealed that the length of RMTSs played a more significant role than the width at lower ARs in their photocatalytic activity.Rod-shaped mesoporous titanosilicate composites （RMTSs） with controllable aspect ratios （ARs） were fabricated using cetyltrimethylammonium bromide （CTAB） and ammonium hydroxide （NH4OH） at a continuous stirring rate, resulting in ARs ranging from 1 to 5. Slowing the stirring rate or increasing the concentration of CTAB mainly impacted the length growth, whereas NH4OH affected the width growth. Photocatalytic activity studies revealed that the length of RMTSs played a more significant role than the width at lower ARs in their photocatalytic activity.

关 键 词：TITANOSILICATE Aspect ratio Growth direction Photocatalytic activity 

分 类 号：O643.36[理学—物理化学] TB33[理学—化学]