Recent progress of visible-light-driven heterogeneous photocatalysts for overall water splitting

被引：175

作者：

Yamasita, D

Takata, T

Hara, M

Kondo, JN

Domen, K

机构：

[1] Tokyo Inst Technol, Chem Resources Lab, Yokohama, Kanagawa 2268503, Japan

[2] Japan Sci & Technol Co, CREST, JST, Core Res Evolut Sci & Technol, Daito 1100015, Japan

来源：

SOLID STATE IONICS | 2004年 / 172卷 / 1-4期

关键词：

visible light; heterogeneous photocatalysts; water splitting;

D O I：

10.1016/j.ssi.2004.04.033

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：

TaON and MTaO2N (M: Ca, Sr, Ba), Ta5+-based (oxy)nitrides, were studied as visible-light-driven photocatalysts. Under visible light irradiation ( lambda greater than or equal to 420 nm), TaON oxidized water to O-2 and reduced H+ to H-2 in the presence of sacrificial reagents (Ag+ and methanol). TaON efficiently oxidized water into O-2, with a maximum quantum yield of 34%. H-2 evolution on TaON photocatalyst was found to be remarkably enhanced by adding Ru as a noble-metal cocatalyst. In contrast, MTaO2N did not oxidize water under photocatalytic reaction condition although the oxynitride evolved H-2 in the presence of methanol under visible light irradiation. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：591 / 595

页数：5

共 10 条

[1] ANION ORDERING IN TAON - POWDER NEUTRON-DIFFRACTION INVESTIGATION [J].