Transition metal doped titania: Physical properties and photocatalytic behaviour

被引：0
|
作者：
Wilke, K. [1 ]
Breuer, H.D. [1 ]
机构：
[1] Universität des Saarlandes, Institut für Physikalische Chemie, Im Stadtwald, D-66123 Saarbrücken, Germany
来源：
Zeitschrift fur Physikalische Chemie | 1999年 / 213卷 / 02期
关键词：
Energy gap - Titanium dioxide - Physical properties - Transition metals - Detoxification;
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学科分类号：
摘要：
Titanium dioxide is one of the most efficient photocatalysts for the detoxification of organically charged waste water. However, this material suffers from the drawback of poor absorption properties because of a band gap of 3,2 eV. Thus, wavelengths shorter than 400 nm are needed for light induced generation of electron-hole pairs. That is why doping with transition metal ions is interesting for inducing a bathochromic shift of the band gap. However, this doping changes other physical properties such as lifetime of electron-hole pairs and adsorption characteristics. © by Oldenbourg Wissenschaftsverlag, München.
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页码：135 / 140
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