Photocatalytic Reduction of CO2 from Simulated Flue Gas with Colored Anatase

被引：9

作者：

Guan, Yebin ^{[1
,2
,3
]}

Xia, Ming ^{[1
,2
]}

Marchetti, Alessandro ^{[1
,2
]}

Wang, Xiaohong ^{[3
]}

Cao, Weicheng ^{[1
,2
]}

Guan, Hanxi ^{[1
,2
]}

Kong, Xueqian ^{[1
,2
]}

机构：

[1] Zhejiang Univ, Ctr Chem Novel & High Performance Mat, Hangzhou 310027, Zhejiang, Peoples R China

[2] Zhejiang Univ, Dept Chem, Hangzhou 310027, Zhejiang, Peoples R China

[3] Anqing Normal Univ, Sch Chem & Chem Engn, Anhui Key Lab Funct Coordinat Cpds, Anqing 246011, Peoples R China

来源：

CATALYSTS | 2018年 / 8卷 / 02期

基金：

中国国家自然科学基金;

关键词：

photocatalytic reduction; TiO2; anatase; CO2; flue gas; CARBON-DIOXIDE; DOPED TIO2; IN-SITU; HYDROGEN; SURFACE; RUTILE; PHOTOSYNTHESIS; ABSORPTION; TITANIA; FACETS;

D O I：

10.3390/catal8020078

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Photocatalytic reduction with sunlight is an economical and promising advanced approach for reducing the excessive emissions of CO2 from the combustion of fossil fuels. Aimed at practical applications, a type of inexpensive colored anatase material was used to evaluate CO2 photoreduction performance on a platform with a continuous flow of gas mixtures (10 vol % CO2, 90% N-2), which resembles realistic flue gas conditions. The results showed an enhanced photocatalytic activity compared with standard P25 and significant improvement over pristine anatase. Based on a series of characterization techniques, we propose that the oxygen vacancies and surface hydroxyl groups on colored anatase can reduce the bandgap and assist the binding of CO2 molecules. Our results showed that photoreduction of CO2 is feasible under practical conditions, and the efficiency could be improved through modification of catalysts.

引用

页数：11

共 41 条

[1] Reversible storage of molecular hydrogen by sorption into multilayered TiO2 nanotubes [J].