SiO_2/曙红Y-Pt体系可见光催化分解水制氢研究  

Photocatalytic Hydrogen Production over SiO_2/Eosin Y-Pt Catalyst by Visible Light Irradiation

作　　者：张晓杰[1] 储国海[1] 李树本[1] 吕功煊[1] 

机构地区：[1]中国科学院兰州化学物理研究所羰基合成与选择氧化国家重点实验室

出　　处：《分子催化》2007年第4期362-364,共3页Journal of Molecular Catalysis(China)

基　　金：国家重点基础研究专项经费(Nos.G200000264和2003CB214500);国家自然科学基金(No.90210027)资助项目

摘　　要：In the current study,photocatalytic hydrogen production from water under visible light irradiation over Eosin Y-Pt catalyst supported on high specific area SiO2 has been achieved in the presence of electron donor such as Triethanolamine(TEOA).The optimal pH and concentration of Eosin Y were about 7 and 7.24 × 10-4 mol·L-1,respectively.The highest rate of hydrogen evolution and the highest apparent quantum efficiency under irradiation with a wavelength longer than 420 nm was about 43 μmol·h-1 and 10.4%,respectively.In the current study, photocatalytic hydrogen production from water under visible light irradiation over Eosin Y-Pt catalyst supported on high specific area SiO2 has been achieved in the presence of electron donor such as Tfiethanolamine （TEOA）. The optimal pH and concentration of Eosin Y were about 7 and 7.24 × 10^-4 mol · L^-1, respectively. The highest rate of hydrogen evolution and the highest apparent quantum efficiency under irradiation with a wavelength longer than 420 nm was about 43 μmol ·h^-1 and 10.4% , respectively.

关 键 词：光催化 硅胶 曙红 制氢 可见光 

分 类 号：O543.32[理学—物理]