三氯化铁除砷(Ⅲ)机理

被引：48

作者：

李娜

孙竹梅

阮福辉

杜冬云

机构：

[1] 中南民族大学环境科学与工程研究所,中南民族大学化学与材料科学学院/催化材料科学国家民委-教育部共建重点实验室

来源：

化工学报 | 2012年 / 63卷 / 07期

关键词：

三氯化铁; 除砷机理; 砷酸铁; 砷;

D O I：

暂无

中图分类号：

X703 [废水的处理与利用];

学科分类号：

083001 [环境科学];

摘要：

采用XPS、SEM、TEM和红外分析的方法研究了三氯化铁除砷(Ⅲ)的机理。结果表明,三氯化铁是通过吸附共沉淀的方式去除水中的砷(Ⅲ)。XPS的数据表明在氯化铁处理含砷(Ⅲ)废水时有氧化还原反应发生;从SEM和TEM图可以看出随着溶液pH的升高,沉淀物从颗粒状态逐渐变为不规则的絮凝状态,颗粒粒径逐渐增大,表面有吸附物质存在;而从沉淀物的红外光谱图可以推断无砷酸铁生成。

引用

页码：2224 / 2228

页数：5

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