化工进展2017，Vol.36Issue(2)：750-755,6.DOI:10.16085/j.issn.1000-6613.2017.02.048
超声化学辅助法制备纳米ZnS及其对水中铜离子的吸附性能
Sonochemistry-assisted preparation of ZnS nanomaterials and its adsorption performance of copper ions in aqueous solution
摘要
Abstract
Environmental issues caused by copper pollution have seriously threatened human health. In this paper,zinc sulfide(ZnS) nanomaterials were successfully synthesized with the assistance of sonochemistry in an aqueous system of Zn(NO3)2·6H2O and Na2S·9H2O for the removal of Cu2+from aqueous solution. The prepared ZnS were characterized by means of FTIR,XRD,SEM and N2 physical adsorption. The influence of initial concentration,contact time,treat temperature,pH and competitive cations on adsorption capacities was investigated. The results showed that the prepared ZnS presented a crystalline structure of cubic zinc-blende phase and are in irregular block forms. The pore structure was mainly caused by agglomeration and had a wide pore diameter distribution. It showed excellent adsorption performance and the adsorption capacity can reach as high as 629.8mg/L under the experimental conditions as ZnS dosage of 200mg/L,initial concentration of 400mg/L,contact time of 12h and treat temperature of 25℃. The addition of Na+ and K+ had no significant effect on the adsorption properties and the Cu2+ removal by the ZnS nanomaterials was based on the synergistic effect of ion exchange and adsorption.关键词
纳米材料/硫化锌/超声化学辅助法/离子交换/吸附Key words
nanomaterials/zinc sulfide/sonochemistry-assisted method/ion exchange/adsorption分类
资源环境引用本文复制引用
刘国清,李友凤,曾令玮,王占强,谭谈,曾坚贤..超声化学辅助法制备纳米ZnS及其对水中铜离子的吸附性能[J].化工进展,2017,36(2):750-755,6.基金项目
国家自然科学基金（51573041）、湖南省科技计划（2015JC3112）、湖南省自然科学基金（14JJ4043,2015JJ6036）及湖南省化学化工类专业校企合作人才培养示范基地（145812）项目。 （）
