期刊
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
卷 1, 期 1, 页码 48-53出版社
AMER CHEMICAL SOC
DOI: 10.1021/jz9000032
关键词
-
类别
资金
- National Energy Technology Laboratory
A series of CdSe quantum dot (QD)-sensitized TiO2 heterostructures have been synthesized, characterized, and tested for the photocatalytic reduction of CO2 in the presence of H2O. Our results show that these heterostructured materials are capable of catalyzing the photoreduction of CO2 using visible light illumination (lambda > 420 nm) only. The effect of removing surfactant caps from the CdSe QDs by annealing and using a hydrazine chemical treatment have also been investigated. The photocatalytic reduction process is followed using infrared spectroscopy to probe the gas. phase reactants and gas chromatography to detect the products. Gas chromatographic analysis shows that the primary reaction product is CH4, with CH3OH, H-2, and CO observed as secondary products. Typical yields of the gas-phase products after visible light illumination (lambda > 420 nm) were 48 ppm g(-1) h(-1) of CH4, 3.3 ppm g(-1) h(-1) of CH3OH (vapor), and trace amounts of CO and H-2.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据