摘要
To separate zinc ions from aqueous solution efficiently, micellar-enhanced ultrafiltration(MEUF) of hollow ultrafiltration membrane was used with sodium dodecyl sulfate(SDS) as surfactant.The formation of micellar and the adsorption mechanism were investigated, including the influence of the ratio of SDS to zinc ions on the micelle quantity, the micelle ratio, the gross adsorptive capacity, the rejection of zinc ions and the adsorption isotherm law. The results show that the rejection rate of zinc ions reaches 97% and the adsorption of zinc ions on SDS conforms to the Langmuir adsorption isotherm and the adsorption is a chemical adsorption process.
To sepantte zinc ions from aqueous solution efficiently, micellar-enhanced ultrafiltration（MEUF） of hollow ultrafiltration membrane was used with sodium dodecyl sulfate（SDS） as surfactant.The formation of micellar and the adsorption mechanism were investigated including the influence office ratio of SDS to zinc ions on the micelle quantity, the micelle ratio, the gross adsorptive capacity, the rejection of zinc ions and the adsorption isotherm law. The results show that the rejection rate of zinc ions reaches 97% and the adsorption of zinc ions on SDS conforms to the Langmuir adsorption isotherm and the adsorption is a chemical adsorption process.
出处
《中国有色金属学会会刊：英文版》
EI
CSCD
2007年第5期1112-1117,共6页
Transactions of Nonferrous Metals Society of China
基金
Project(50608028) supported by the National Natural Science Foundation of China
Project(50225926) supported by the National Foundation for Distinguished Young Scholars
Project(20020532017) supported by the Doctoral Foundation of Ministry of Education of China
Project(2003AA644010) supported by the National High-Tech Research Program of China
Project([2005]100) supported by Scientific Research Fund of Hunan Provincial Education Department, China
关键词
胶束
超滤作用
锌离子
表面活性剂
micellar-enhanced ultrafiltration
zinc ion
surfactant
miccllcs
