Contribution of multiple reflections to light utilization efficiency of submicron hollow TiO_2 photocatalyst

作     者：刘红艳 马华 Jibong Joo 殷亚东 

作者机构：Key Laboratory of Luminescent and Real-Time Analytical ChemistryMinistry of EducationCollege of Chemistry and Chemical EngineeringSouthwest UniversityChongqing 400715China Department of Chemistry and UCR Center for CatalysisUniversity of CaliforniaRiversideCA 92521USA College of Chemistry and Chemical EngineeringLanzhou UniversityLanzhou 730000China Department of Chemical EngineeringKonkuk University120 Neungdong-RoGwangjin-GuSeoulRepublic of Korea 

出 版 物：《Science China Materials》 (中国科学（材料科学（英文版）)

年 卷 期：2016年第59卷第12期

页      面：1017-1026页

核心收录：

学科分类：081702[工学-化学工艺] 081705[工学-工业催化] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070205[理学-凝聚态物理] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：support from the U.S.Department of Energy,Office of Science,Basic Energy Sciences,Chemical Sciences,Geosciences,&Biosciences(CSGB)Division(DE-SC0002247) support from the National Natural Science Foundation of China(21501081,21571089,and 21401091) the Fundamental Research Funds for the Central Universities(SWU116010 and lzujbky-2015-19) 

主　　题：multiple reflections photocatalysis TiO2 hollow shell 

摘      要：In this work,we carried out both theoretical calculation and experimental studies to reveal the contribution of hollow geometry to the light utilization efficiency of the TiO_2 photocatalysts in diluted aqueous *** is found that the single or multi-shelled hollow structures do not induce significant multiple reflections within the shells as widely believed in previous reports,and therefore the geometric factor has minimal contribution to the improvement of the light utilization efficiency of the *** design TiO_2 photocatalysts with higher activity,it is more appropriate to focus on the improvement of the crystallinity,diffusion,surface area,and dispersity of the catalysts,rather than their geometric shapes.