Strongly visible-light responsive plasmonic shaped AgX:Ag (X = Cl, Br) nanoparticles for reduction of CO2 to methanol

被引：197

作者：

An, Changhua ^{[1
,2
]}

Wang, Jizhuang ^{[1
,2
]}

Jiang, Wen ^{[1
,2
]}

Zhang, Meiyu ^{[1
,2
]}

Ming, Xijuan ^{[1
,2
]}

Wang, Shutao ^{[1
,2
]}

Zhang, Qinhui ^{[3
]}

机构：

[1] China Univ Petr, Coll Sci, State Key Lab Heavy Oil Proc, Qingdao 266580, Shandong, Peoples R China

[2] China Univ Petr, Coll Sci, Dept Mat Phys & Chem, Key Lab New Energy Phys & Mat Sci,Univ Shandong, Qingdao 266580, Shandong, Peoples R China

[3] China Univ Petr, Coll Chem Engn, State Key Lab Heavy Oil Proc, Qingdao 266580, Shandong, Peoples R China

来源：

NANOSCALE | 2012年 / 4卷 / 18期

基金：

中国国家自然科学基金;

关键词：

EXPOSED; 111; FACETS; AG-AT-AGCL; HIGHLY EFFICIENT; PHOTOCATALYTIC REDUCTION; FACILE SYNTHESIS; TIO2; DIOXIDE; YIELD;

D O I：

10.1039/c2nr31213a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Plasmonic shaped AgX:Ag (X = Cl, Br) nanoparticles have been synthesized by a facile and versatile glycerol-mediated solution route. The as-prepared AgX:Ag nanoparticles exhibit regular shapes, i.e., cube-tetrapod-like AgCl:Ag nanoparticles and AgBr:Ag nanoplates. Compared with the pristine AgX, AgX:Ag nanocomposites display stronger absorption in the visible region due to the surface plasmon resonance of silver nanoparticles. The calculation of bandgaps and band positions indicates the as-achieved AgX:Ag nanoparticles can be used as a class of potential photocatalyst for the reduction of CO2. For example, reduction of CO2 under visible light irradiation with the assistance of the anisotropic AgX:Ag nanoparticles yields as much as 100 mmol methanol in the products. Furthermore, the AgX:Ag nanoparticles can maintain its structure and activity after 3 runs of reactions. Therefore, the present route opens an avenue to acquire plasmonic photocatalysts for conversion of CO2 into useful organic compounds.

引用

页码：5646 / 5650

页数：5

共 28 条

[1] Facile Synthesis of Sunlight-Driven AgCl:Ag Plasmonic Nanophotocatalyst [J].