Removal of heavy metal ions by porous sepiolite-based membrane

Micro & nano letters

article

Ji Zhou¹  Zhenyu Fan²  Qiong Tian¹  Shijun Zhao²  Yong Jiang² 

[1] College of Civil and Environmental Engineering, Hunan University of Science and Engineering;Institute of Rheological Mechanics, Xiangtan University

关键词: porous materials;    cadmium;    water treatment;    electrospinning;    polymer fibres;    membranes;    biomedical materials;    porosity;    clay;    adsorption;    chromium;    arsenic;    manganese;    filled polymers;    heavy metal ion removal;    natural clay sepiolite;    specific surface area;    secondary pollution;    porous composite fibres;    drinking-water treatment;    porous sepiolite-based membrane;    porous structure;    high-efficiency electrospun polyurethane-sepiolite membrane;    absorption capacity;    Cr;    Cd;    Mn;    As;   

DOI  :  10.1049/mnl.2020.0232

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

Natural clay sepiolite with high specific surface area and unique porous structure exhibits great potential for application in the fields of water treatment. However, the adsorption methods suffer from some drawbacks, such as the production of toxic sludge and secondary pollution. Electrospinning technology has been widely employed to fabricate porous composite fibres. Thus, the authors design a high-efficiency electrospun polyurethane/sepiolite membrane that can remove heavy metal ions from drinking water. This kind of sepiolite-based membrane not only exhibits high absorption capacity of Cr, Cd, As and Mn, but also offers several advantages such as minimising the risk of secondary pollution. Sepiolite-based membrane shows great potential for applications including urgent drinking-water treatment, field survival and disaster rescue.

【 授权许可】

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