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ACCELERATED DECOMPOSITION OF ACTIVE PHOSPHATES ON TIO2 SURFACES
被引：45
|作者：
GRATZEL, CK
JIROUSEK, M
GRATZEL, M
机构：
[1] EPFL, Lausanne, Switz, EPFL, Lausanne, Switz
来源：
JOURNAL OF MOLECULAR CATALYSIS
|
1987年
/
39卷
/
03期
关键词：
CHEMICAL REACTIONS - Photochemical Reactions - ORGANIC COMPOUNDS - Decomposition - POWDERS - Surfaces;
D O I：
10.1016/0304-5102(87)80080-9
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ;
081704 ;
摘要：
The organophosphate 4-nitrophenyldiethylphosphate (4-NPDEP), a toxic simulant, was deposited on a Nb-doped TiO//2 powder for subsequent photodecomposition. This degradation was observed to occur via hydrolysis by either surface hydroxides or peroxo groups en route to complete mineralization, presumably mediated by the surface mu -peroxo species. Light and O//2 were essential for rapid and complete degradation. A contribution from direct hole and electron oxidation and reduction was also observed.
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页码：347 / 353
页数：7
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