PHOTOSENSITIZATION OF RUTHENIUM(II) COMPLEX ON TITANIA FOR PHOTOCATALYTIC H2 EVOLUTION UNDER VISIBLE-LIGHT IRRADIATION

被引：0

作者：

Peng, Tianyou ^{[1
]}

Yi, Huabing ^{[1
]}

Ke, Dingning ^{[1
]}

Dai, Ke ^{[1
]}

Cai, Ping ^{[1
]}

机构：

[1] Wuhan Univ, Dept Chem, Wuhan 430072, Peoples R China

来源：

IMECE 2008: MECHANICS OF SOLIDS, STRUCTURES AND FLUIDS, VOL 12 | 2009年

关键词：

SENSITIZED PT/TIO2 PHOTOCATALYST; HYDROGEN EVOLUTION; WATER; PHOTOLYSIS; MIXTURE;

D O I：

暂无

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Hydrogen production over dye-sensitized Pt/P25 under visible-light irradiation was investigated by using methanol or TEOA as an electron donor. The binuclear Ru(II) dye (Ru-2(bpy)(4)L-1-PF6) shows the best photosensitization in both sacrificial reagent solutions due to its larger conjugation system and "antenna effect", which is loosely linked with TiO2 and exhibits more steady and higher increases in H-2 evolution upon prolonging the irradiation time in comparison with the tightly linked N719. The dynamic equilibrium between the linkage of ground dye and divorce of oxidized dye from TiO2 can enhance the electron injection and hinder the backward transfer, and then improve the H-2 evolution efficiency.

引用

页码：401 / 405

页数：5

共 23 条

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