Adsorption of Organophosphates into Microporous and Mesoporous NaX Zeolites and Subsequent Chemistry

被引：44

作者：

Meng, Qingguo ^{[1
]}

Doetschman, David C. ^{[1
]}

Rizos, Apostolos K. ^{[2
]}

Lee, Min-Hong ^{[1
]}

Schulte, Juergen T. ^{[1
]}

Spyros, Apostolos ^{[2
]}

Kanyi, Charles W. ^{[1
]}

机构：

[1] SUNY Binghamton, Dept Chem, Binghamton, NY 13902 USA

[2] Univ Crete, Dept Chem, Iraklion 71003, Greece

来源：

ENVIRONMENTAL SCIENCE & TECHNOLOGY | 2011年 / 45卷 / 07期

基金：

美国国家科学基金会;

关键词：

CHEMICAL WARFARE AGENTS; DIMETHYL METHYLPHOSPHONATE DMMP; MAS NMR; ORGANOTHIOPHOSPHATE PESTICIDE; FAUJASITE ZEOLITE; NANOSIZE AL2O3; X-ZEOLITE; DEGRADATION; VX; HD;

D O I：

10.1021/es1030678

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Due to the neurotoxicity of organophosphate (OP) pesticides and nerve agents synthesized as military or terror agents, their safe destruction and disposal is of considerable current importance. A representative OP, trimethyl phosphate (TMP), was adsorbed onto NaX zeolite, two mesoporous modifications, and a low-silica X zeolite. The nucleophilic chemical reactions of TMP with the zeolites were investigated by solid-state C-13 and P-31 nuclear magnetic resonance (NMR) and the solvent extracts by H-1, C-13, and P-31 NMR. Nucleophilic substitution and subsequent hydrolysis reaction schemes are proposed. All of the zeolites have similar TMP decomposition yields, supporting the hypothesis that slow or incomplete diffusion of TMP in the microporous zeolite regions limits TMP decomposition.

引用

页码：3000 / 3005

页数：6

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