A new type of water splitting system composed of two different TiO2 photocatalysts (anatase, rutile) and a IO3-/I- shuttle redox mediator

被引：294

作者：

Abe, R

Sayama, K

Domen, K

Arakawa, H

机构：

[1] Natl Inst Adv Ind Sci & Technol, AIST, PCRC, Tsukuba, Ibaraki 3058565, Japan

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

来源：

CHEMICAL PHYSICS LETTERS | 2001年 / 344卷 / 3-4期

关键词：

D O I：

10.1016/S0009-2614(01)00790-4

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：

A new photocatalytic reaction that splits water into H-2 and O-2 was designed by a two-step photoexcitation system composed of a IO3-/I- shuttle redox mediator and two different TiO2 photocatalysts, Pt-loaded TiO2-anatase for H-2 evolution and TiO2-rutile for O-2 evolution. Simultaneous gas evolution of H-2(180 mu mol/h) and O-2(90 mu mol/h) was observed from a basic (pH = 11) NaI aqueous suspension of two different TiO2 photocatalysts under UV irradiation (lambda > 300 =, 400 W high-pressure Hg lamp). (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：339 / 344

页数：6

共 6 条

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