Adsorption characteristics of zinc ions on sodium dodecyl sulfate in process of micellar-enhanced ultrafiltration

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...

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Bibliographic Details
Published in:Transactions of Nonferrous Metals Society of China 2007-10, Vol.17 (5), p.1112-1117
Main Author: 黄瑾辉 曾光明 曲云欢 张振
Format: Article
Language:English
Subjects:
micellar-enhanced ultrafiltration
micelles
surfactant
zinc ion
表面活性剂
超滤作用
锌离子
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Summary: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.
ISSN:1003-6326
DOI:10.1016/S1003-6326(07)60234-9