Improved visible-light photocatalysis of nano-Bi2Sn2O7 with dispersed s-bands

被引：104

作者：

Wu, Jianjun ^{[1
,2
]}

Huang, Fuqiang ^{[1
,2
]}

Lue, Xujie ^{[1
,2
]}

Chen, Ping ^{[1
,2
]}

Wan, Dongyun ^{[1
]}

Xu, Fangfang ^{[1
]}

机构：

[1] Chinese Acad Sci, State Key Lab High Performance Ceram & Superfine, Shanghai Inst Ceram, Shanghai 200050, Peoples R China

[2] Peking Univ, Coll Chem & Mol Engn, Beijing 100871, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2011年 / 21卷 / 11期

基金：

美国国家科学基金会;

关键词：

STRUCTURAL-PROPERTIES; WATER DECOMPOSITION; DEGRADATION; NANOSTRUCTURES; OXIDES;

D O I：

10.1039/c0jm03252b

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：

Band structure design plays a vital role on the development of highly efficient and visible-light driven photocatalysts. Large band dispersions ensure a fair mobility of the photoinduced charge carriers, leading to excellent photocatalysis. As a case in point, Bi2Sn2O7 has been investigated for the first time as a robust visible-light photocatalyst. The VB and CB are both highly dispersed, and contain s orbitals (Bi 6p + Sn 5s + O 2p for CB, O 2p + Bi 6s for VB). Bi2Sn2O7 was prepared by a direct hydrothermal reaction in the absence of additives and exhibited improved performance. This study not only discloses insights into the design of new photocatalysts in term of band engineering, but also provides flexibility and selectivity for the deliberate synthesis of other functional materials.

引用

页码：3872 / 3876

页数：5

共 38 条

[1] Pristine simple oxides as visible light driven photocatalysts: Highly efficient decomposition of organic compounds over platinum-loaded tungsten oxide [J].