Use of formic acid as reducing agent for application in catalytic reduction of nitrate in water

被引：100

作者：

Garron, A ^{[1
]}

Epron, F ^{[1
]}

机构：

[1] Univ Poitiers, CNRS, UMR 6503, Catalyse Chim Organ Lab, F-86022 Poitiers, France

来源：

WATER RESEARCH | 2005年 / 39卷 / 13期

关键词：

Pd-Sn catalysts; nitrate; catalytic reduction; drinking water; formic acid;

D O I：

10.1016/j.watres.2005.05.012

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The reduction of nitrate in nitrogen using bimetallic palladium tin catalysts and hydrogen is an interesting process for water treatment. The aim of the present study is to use formic acid (FA) as a reducing agent and a pH buffer in order to substitute the mixture of hydrogen and carbon dioxide. The catalytic performances of a palladium tin catalyst supported on silica were evaluated in the presence of FA, as a function of the initial acid concentration and of the gas phase (N-2, CO2, or H-2). Results were compared to those obtained with hydrogen in the presence of carbon dioxide. Similar mechanisms seem to explain the identical catalytic performances observed with these two reducing agents. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：3073 / 3081

页数：9

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