Solar hydrogen production.: Significant effect of Na2CO3 addition on water splitting using simple oxide semiconductor photocatalysts

被引：79

作者：

Arakawa, H ^{[1
]}

Sayama, K ^{[1
]}

机构：

[1] Natl Inst Mat & Chem Res, Tsukuba, Ibaraki 3058565, Japan

来源：

CATALYSIS SURVEYS FROM JAPAN | 2000年 / 4卷 / 01期

关键词：

water splitting; oxide semiconductor photocatalysts; Na2CO3 addition method; H-2; production; solar light irradiation;

D O I：

10.1023/A:1019096323694

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：

Recent progress in photocatalytic decomposition of water to H-2 and O-2 using simple oxide semiconductor catalysts has been reviewed. Addition of Na2CO3 to Pt/TiO2 suspension in water enhanced the stoichiometric decomposition significantly. This Na2CO3 addition method has been proved to be very useful to accelerate water splitting over various kinds of oxide semiconductor photocatalysts. The role of CO32- anion on the acceleration of water splitting was clarified. Finally, it was firstly demonstrated in the world that water was decomposed efficiently and stoichiometrically to H-2 and O-2 using a 3 wt% NiOx/TiO2 photocatalyst under real solar light irradiation in Tsukuba, Japan by this Na2CO3 addition method.

引用

页码：75 / 80

页数：6

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