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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