Selective transport of electron and hole among {001} and {110} facets of BiOCl for pure water splitting

被引：171

作者：

Zhang, Ling ^{[1
]}

Wang, Wenzhong ^{[1
]}

Sun, Songmei ^{[1
]}

Jiang, Dong ^{[1
]}

Gao, Erping ^{[1
]}

机构：

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

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2015年 / 162卷

基金：

中国国家自然科学基金;

关键词：

Selective transport; Photo-deposition; BiOCl; Photocatalytic; Water splitting; SINGLE-CRYSTALLINE NANOSHEETS; DEPENDENT PHOTOREACTIVITY; PHOTOCATALYTIC ACTIVITY; CATALYSIS;

D O I：

10.1016/j.apcatb.2014.07.024

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：

The efficient spatial transport of photo-generated electrons and holes to different facets is critical to construct an efficient solar energy conversion system. BiOCI@Au/MnOx hierarchical structure was fabricated by depositing the Au and MnOx on the {001} and {110} crystal facets of BiOCl, respectively. The internal electric field (E-IEF) along the < 001 > direct, and strong local electric field (E-LEF) induced by the fast formed Au nanoparticles have been proposed as the intrinsic driving force for the spatial separation and transport of charge carriers in the BiOCl semiconductor, which resulted in significant enhancement of solar-driven photocatalytic activity for the pure water splitting without any sacrificial agent. The special structure of selective deposition of redox cocatalysts on the different facets of a single crystal should be promising and intriguing for designing highly efficient solar energy conversion photocatalyst. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：470 / 474

页数：5

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