文献类型：期刊文献

英文题名：Enhanced Photocatalytic CO(2)Reduction over TiO(2)Using Metalloporphyrin as the Cocatalyst

作者：Wang, Ziyi Zhou, Wei Wang, Xin Zhang, Xueliang Chen, Huayu Hu, Huilin Liu, Lequan Ye, Jinhua Wang, Defa

第一作者：Wang, Ziyi

通信作者：Wang, DF[1];Wang, DF[2]

机构：[1]Tianjin Univ, Sch Mat Sci & Engn, Tianjin Key Lab Composite & Funct Mat,TJU NIMS In, Minist Educ,Key Lab Adv Ceram & Machining Technol, 92 Weijin Rd, Tianjin 300072, Peoples R China;[2]Collaborat Innovat Ctr Chem Sci & Engn Tianjin, 92 Weijin Rd, Tianjin 300072, Peoples R China;[3]Tianjin Univ, Sch Sci, Dept Phys, 92 Weijin Rd, Tianjin 300072, Peoples R China;[4]Guizhou Inst Technol, Sch Mat & Met Engn, 1 Caiguan Rd, Guiyang 550003, Peoples R China;[5]Natl Inst Mat Sci NIMS, Int Ctr Mat Nanoarchitecton WPI MANA, 1-1Namiki, Tsukuba, Ibaraki 3050044, Japan

第一机构：Tianjin Univ, Sch Mat Sci & Engn, Tianjin Key Lab Composite & Funct Mat,TJU NIMS In, Minist Educ,Key Lab Adv Ceram & Machining Technol, 92 Weijin Rd, Tianjin 300072, Peoples R China

通信机构：corresponding author), Tianjin Univ, Sch Mat Sci & Engn, Tianjin Key Lab Composite & Funct Mat,TJU NIMS In, Minist Educ,Key Lab Adv Ceram & Machining Technol, 92 Weijin Rd, Tianjin 300072, Peoples R China;corresponding author), Collaborat Innovat Ctr Chem Sci & Engn Tianjin, 92 Weijin Rd, Tianjin 300072, Peoples R China.

年份：2020

卷号：10

期号：6

起止页码：1-11

外文期刊名：CATALYSTS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000551274100001)】；

基金：This research was funded by the National Natural Science Foundation of China (51572191, 21633004).

语种：英文

外文关键词：photocatalysis; metalloporphyrin; cocatalyst; TiO2; CO(2)reduction

摘要：The photocatalytic reduction of carbon dioxide (CO2) into CO and hydrocarbon fuels has been considered as an ideal green technology for solar-to-chemical energy conversion. The separation/transport of photoinduced charge carriers and adsorption/activation of CO(2)molecules play crucial roles in photocatalytic activity. Herein, tetrakis (4-carboxyphenyl) porphyrin (H2TCPP) was incorporated with different metal atoms in the center of a conjugate macrocycle, forming the metalloporphyrins TCPP-M (M = Co, Ni, Cu). The as-obtained metalloporphyrin was loaded as a cocatalyst on commercial titania (P25) to form TCPP-M@P25 (M = Co, Ni, Cu) for enhanced CO(2)photoreduction. Among all of the TCPP-M@P25 (M = Co, Ni, Cu), TCPP-Cu@P25 exhibited the highest evolution rates of CO (13.6 mu mol.g(-1).h(-1)) and CH4(1.0 mu mol.g(-1).h(-1)), which were 35.8 times and 97.0 times those of bare P25, respectively. The enhanced photocatalytic activity could be attributed to the improved photogenerated electron-hole separation efficiency, as well as the increased adsorption/activation sites provided by the metal centers in TCPP-M (M = Co, Ni, Cu). Our study indicates that metalloporphyrin could be used as a high-efficiency cocatalyst to enhance CO(2)photoreduction activity.