Comparison of the Photoredox Properties of Polyoxometalates and Semiconducting Particles
Comparison of the Photoredox Properties of Polyoxometalates and Semiconducting Particles
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多金属氧酸盐和半导体颗粒光氧化还原性能的比较
DOI：
10.1002/chin.200146273
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发表时间：
2001
期刊：
影响因子：
--
通讯作者：
E. Papaconstantinou
中科院分区：
文献类型：
--
作者：
A. Hiskia;A. Mylonas;E. Papaconstantinou
我们证明了两大类化合物，即聚氧乙烯酸盐（主要由钨酸盐和/或钨酸盐的酸缩合产生）和各种金属氧化物的聚集体（通过搅拌，超声处理等形成）具有相似的性质。重点是两个系统的光催化性能。描述了光催化循环中的各个步骤，并使用来自两种系统的几个实施例来证明它们的光催化性能在有机化合物的光分解的总体机制、所涉及的中间物质和最终光降解产物（即，CO2、H2O和无机阴离子）。
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).