Removal of heavy metal ions by porous sepiolite-based membrane

被引：6

作者：

Zhou, Ji ^{[1
]}

Fang, Zhenyu ^{[2
]}

Tian, Qiong ^{[1
]}

Zhao, Shijun ^{[2
]}

Jiang, Yong ^{[2
]}

机构：

[1] Hunan Univ Sci & Engn, Coll Civil & Environm Engn, Yongzhou 425006, Hunan, Peoples R China

[2] Xiangtan Univ, Inst Rheol Mech, Xiangtan 411105, Hunan, Peoples R China

来源：

MICRO & NANO LETTERS | 2020年 / 15卷 / 13期

关键词：

AQUEOUS-SOLUTIONS; EFFICIENT REMOVAL; WASTE-WATER; ADSORPTION; MONTMORILLONITE; ADSORBENTS; BENTONITE; SORPTION; COPPER; DYE;

D O I：

10.1049/mnl.2020.0232

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

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.

引用

页码：903 / 906

页数：4

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