Efficient hydrogen evolution from aqueous mixture of I- and acetonitrile using a merocyanine dye-sensitized Pt/TiO2 photocatalyst under visible light irradiation

被引：82

作者：

Abe, R ^{[1
]}

Sayama, K ^{[1
]}

Arakawa, H ^{[1
]}

机构：

[1] AIST, PCRC, Tsukuba, Ibaraki 3058565, Japan

来源：

CHEMICAL PHYSICS LETTERS | 2002年 / 362卷 / 5-6期

关键词：

D O I：

10.1016/S0009-2614(02)01140-5

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：

Hydrogen production from aqueous mixture of I- and acetonitrile using dye-sensitized Pt/TiO2 photocatalyst was investigated under visible light irradiation. It was found that energetically uphill H-2 formation with a high quantum efficiency (similar to2%) took place using a merocyanine dye-sensitized Pt/TiO2 photocatalyst and an I- electron donor in an acetonitrile-water mixture (AN: H2O = 95:5 by volume) under visible light irradiation (lambda > 440 nm). Addition of acetonitrile, which is a good solvent for I- and merocyanine dye, significantly improved H-2 evolution. (C) 2002 Elsevier Science B.V. All rights reserved.

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页码：441 / 444

页数：4

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