Visible-light-responsive copper(II) borate photocatalysts with intrinsic midgap states for water splitting

被引：41

作者：

Liu, Jikai ^{[1
]}

Wen, Shuhao ^{[1
]}

Zou, Xiaoxin ^{[1
]}

Zuo, Fan ^{[1
]}

Beran, Gregory J. O. ^{[1
]}

Feng, Pingyun ^{[1
]}

机构：

[1] Univ Calif Riverside, Dept Chem, Riverside, CA 92521 USA

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2013年 / 1卷 / 05期

基金：

美国国家科学基金会;

关键词：

TIO2; ENERGY; ABSORPTION; METABORATE;

D O I：

10.1039/c2ta00522k

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：

Two copper borates, CuB2O4 and Cu3B2O6, produce either H-2 or O-2 under visible light in the presence of sacrificial agents. Both copper borates exhibit intrinsic midgap states between the valence bands and conduction bands. However, structural differences in the two compounds lead to midgap states with remarkably different photocatalytic behaviors. In CuB2O4, the midgap states facilitate visible light absorption and enhance photocatalytic activity, while in Cu3B2O6 they act as trap states that reduce photocatalytic activity.

引用

页码：1553 / 1556

页数：4

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