Comparison of the photoredox properties of polyoxometallates and semiconducting particles

被引:494
作者
Hiskia, A [1 ]
Mylonas, A [1 ]
Papaconstantinou, E [1 ]
机构
[1] NCSR Demokritos, Inst Phys Chem, GR-15310 Athens, Greece
关键词
D O I
10.1039/a905675k
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We demonstrate that two large categories of compounds, namely, polyoxometallates (produced by acid condensation of mainly tungstates and/or molybdates) and aggregates of various metal oxides (formed by stirring, sonication etc) have similar properties. Emphasis is given to the photocatalytic properties of the two systems. The various steps in the photocatalytic cycles are described and several examples, from both systems, have been used to demonstrate that their photocatalytic performance is similar in terms of the overall mechanism of photodecomposition of organic compounds, the intermediate species involved and the final photodegradation products (i.e., CO2, H2O and inorganic anions).
引用
收藏
页码:62 / 69
页数:8
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