Photocatalytic decomposition of organophosphonates in irradiated TiO2 suspensions

被引：77

作者：

OShea, KE ^{[1
]}

Beightol, S ^{[1
]}

Garcia, I ^{[1
]}

Aguilar, M ^{[1
]}

Kalen, DV ^{[1
]}

Cooper, WJ ^{[1
]}

机构：

[1] FLORIDA INT UNIV,DRINKING WATER RES CTR,MIAMI,FL 33199

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 1997年 / 107卷 / 1-3期

基金：

美国国家科学基金会;

关键词：

irradiated TiO2 suspensions; organophosphonates; photocatalytic decomposition;

D O I：

10.1016/S1010-6030(96)04420-6

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：

Kinetic analyses of the TiO2-catalyzed photodegradation of dimethyl methylphosphonate (DMMP) and diethyl methylphosphonate (DEMP) in oxygenated aqueous solutions are described. The effects of substrate concentration and solution pH are investigated. A number of kinetic models appear to be applicable in accordance with the initial kinetic parameters. The major products formed from the photocatalytic decomposition of DMMP are methylphosphonic acid, phosphoric acid, formaldehyde and formic acid. (C) 1997 Elsevier Science S.A.

引用

页码：221 / 226

页数：6

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