摘要
采用溶胶-凝胶法和化学沉淀法2种不同的方法制备高比表面积纳米二氧化硅粉体,研究不同煅烧温度(从400℃到900℃)制备的粉体作为载体对铜离子的静态吸附性能,并对吸附过程中的一些影响因素进行了探讨.结果表明制备的纳米粉体对铜离子有很强的吸附组装能力.采用溶胶—凝胶法制备的二氧化硅载体的吸附性能优于沉淀法制备的粉体.
High surface area nanometer-sized SiO2 powers were prepared by Sol-Gel method and chemistry precipitation method. The static adsorption behaviors of Cu^2＋ on nanometer sized SiO2 powders and its sintering product ions at different temperatures （ from 400℃ to 900℃） were investigated. Some influence factors in the process of adsorption were studied. The results shows that the powers have strong adsorption capacity towards Cu^2＋ at pH 6. 0～7. 0. The adsorption capability of Cu^2＋ on nanometer sized SiO2 powders prepared by Sol-Gel method was superior to that of powders by chemistry precipitation method.
出处
《湖北大学学报（自然科学版）》
CAS
北大核心
2007年第1期60-62,共3页
Journal of Hubei University：Natural Science
基金
湖北省耐火材料与高温陶瓷重点实验室-省部共建国家重点实验室培育基地开放课题(G0401)基金资助项目
湖北大学自然科学(020-095139)基金资助
关键词
溶胶-凝胶法
化学沉淀法
吸附
纳米二氧化硅
Sol-Gel method
chemistry precipitation method
adsorption
nanometer-sized SiO2
