Rapid removal of arsenic from water using metal oxide doped recyclable cross-linked chitosan cryogel

被引：18

作者：

Purohit, Smruti ^{[1
]}

Chini, Mrinmoy Kumar ^{[1
]}

Chakraborty, Tanmoyendu ^{[1
]}

Yadav, Kanhaiya Lal ^{[1
]}

Satapathi, Soumitra ^{[1
]}

机构：

[1] Indian Inst Technol Roorkee, Dept Phys, Roorkee 247667, Uttarakhand, India

来源：

SN APPLIED SCIENCES | 2020年 / 2卷 / 04期

关键词：

Arsenic removal; Environmental science; Adsorption; Chitosan cryogel; ICPMS; DRINKING-WATER; AS(V); IONS; NANOFILTRATION; ADSORPTION; MEMBRANE; SORPTION; AS(III); ACID;

D O I：

10.1007/s42452-020-2525-6

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Arsenic (As) contamination in drinking water is a global concern. Development of facile and low cost As remediation system is of significant social and economic interest. Here, we report a cost-effective and water-stable transition metal oxide doped cross-linked chitosan cryogel for highly sensitive removal of As ion from potable water. Sample aliquots were tested for total arsenic by inductively coupled plasma mass spectroscopy. It was found that the sorption kinetics follows Freundlich isotherm model. We observe remarkably high arsenic removal efficiency (76%) with only 2 h of contact time with cryogel. The scaffold materials can be easily regenerated with acetone. The high removal efficiency of As metal and recyclability of this novel synthesized metal oxide doped cross linked chitosan cryogel render them a potential candidate for low cost arsenic removal based filter development.

引用

页数：10

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