摘要
A new type of photothermal-catalytic water splitting reaction was conducted on a series of photocatalysts (TiS2, Pt/TiO2, Ga2O3-xNx, TiO2-xNx) under visible light irradiation, and the results showed that the pressure had a large effect on the photocatalytic activity of hydrogen evolution. There was almost no hydrogen production under standard atmosphere pressure, while the highest apparent quantum yield of hydrogen production for TiSi2 and Pt/TiO2 could achieve 22.01 and 12.32% under high pressure. The high pressure may be advantageous for the dissociation chemical adsorption of water molecules on the photocatalysts.
A new type of photothermal-catalytic water splitting reaction was conducted on a series of photocatalysts （TiS2, Pt/TiO2, Ga2O3-xNx, TiO2-xNx） under visible light irradiation, and the results showed that the pressure had a large effect on the photocatalytic activity of hydrogen evolution. There was almost no hydrogen production under standard atmosphere pressure, while the highest apparent quantum yield of hydrogen production for TiSi2 and Pt/ TiO2 could achieve 22.01 and 12.32% under high pressure. The high pressure may be advantageous for the dissociation chemical adsorption of water molecules on the photocatalysts.
出处
《分子催化》
EI
CAS
CSCD
北大核心
2008年第2期177-181,共5页
Journal of Molecular Catalysis(China)
基金
973资助项目(No.2003CB214500和2007CB613305).
关键词
光热催化
水分解
制氢
压力
吸附
Photothermal-eatalysis
Water splitting
Hydrogen evolution
Pressure
Adsorption
