Tungsten bronze Cs0.33WO3 nanorods modified by molybdenum for improved photocatalytic CO2 reduction directly from air

作     者：Lian Yi Wenhui Zhao Yanhong Huang Xiaoyong Wu Jinlong Wang Gaoke Zhang 易炼;赵文慧;黄艳红;吴晓勇;王金龙;张高科

作者机构：School of Resources and Environmental EngineeringWuhan University of TechnologyWuhan 430070China 

基　　金：supported by the National Natural Science Foundation of China(21975193 and 51602237) the Fundamental Research Funds for the Central Universities(195208011) 

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

年 卷 期：2020年第63卷第11期

页      码：2206-2214页

摘      要：Photocatalytic CO2 reduction is thought to be a promising strategy in mitigating the energy crisis and several other environmental ***,modifying or developing suitable semiconductors with high efficiency of photocatalytic CO2 reduction property has become a topic of interest to *** this study,a series of Mo-modified Cs0.33WO3 tungsten bronze were prepared using a"watercontrollable releasing"solvothermal method to produce effective photocatalytic CO2 reduction ***,Mo atoms replaced W partially within the hexagonal crystal structure,leading to a significant increase in photocatalytic CO2 reduction activity of *** 5%Modoped compound displayed the best performance,with the production yield rates of 7.5μmol g^-1h^-1 for CO and3.0μmol g^-1h^-1 for CH3OH under low concentration of CO2 under anaerobic conditions,which is greatly higher than those of pure Cs0.33WO3(3.2μmol g^-1h^-1 for CO and 1.2μmol g^-1h^-1 for CH3OH)and Mo-doped W18O49(1.5μmol g^-1h^-1for CO and 0μmol g^-1h^-1 for CH3OH).More importantly,the as-prepared Mo-doped Cs0.33WO3 series could also induce the photocatalytic reduction of CO2 directly from the air in the presence of oxygen,which is beneficial for practical *** superior photocatalytic performance of Mo-doped Cs0.33WO3 series over the popular reduced WO3 may be due to the increase in light absorption induced by the localized surface plasmon resonance(LSPR)effect of Mo5+,large improved charge separation ability,and the co-effect of Mo and Cs in *** study provides a simple strategy for designing highly efficient photocatalysts in low concentration of CO2 reduction.

主 题 词：CO2reduction charge separation Cs0.33WO3 low concentration photocatalytic performance 

学科分类：081704[081704] 081705[081705] 07[理学] 070304[070304] 08[工学] 0817[工学-轻工类] 0703[理学-化学类] 

核心收录：

D　O　I：10.1007/s40843-019-1263-1

馆 藏 号：203941906...