Preparation,characterization and photodegradation of methylene blue based on TiO_2 microparticles modified with thiophene substituents

作     者：LIU Pei ZHANG Peng CAO DongLiang XUE WenTing 

作者机构：College of Chemistry and Chemical EngineeringSouthwest UniversityChongqing 400715China 

出 版 物：《Chinese Science Bulletin》 (Chinese Science Bulletin)

年 卷 期：2012年第57卷第33期

页      面：4381-4386页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学] 

基　　金：supported by the Fundamental Research Funds for the Central Universities (XDJK2010C060) 

主　　题：二氧化钛微粒 光催化降解 亚甲基蓝 噻吩基 制备 取代基 UV-Vis 扫描电子显微镜 

摘      要：The new microparticles,2-formylthiophene(FT)/TiO2 and(E)-1,2-bis(5-formyl-2-thienyl) ethylene(EBFTE)/TiO2 were synthesized with a silane coupling *** prepared TiO2 composites were characterized using Ultraviolet-Vis absorption(UV-Vis),X-ray diffraction(XRD),scanning electron microscope(SEM) and thermogravimetric analyzer(TGA).Methylene blue was used as a model material to examine the photocatalytic activities of the prepared catalysts under both Ultraviolet-Vis(UV) and visible(Vis) *** enhanced photocatalytic activities were observed in the presence of(FT)/TiO2 and EBFTE/TiO2 under Vis *** suggests that FT or EBFTE plays a block or active role in the photodegradation mechanisms under UV and Vis light irradiation,respectively.