Functionalized and reusable polyethylene fibres for Au(III) extraction from aqueous solution with high adsorption capacity and selectivity
Pang, LJ; Li, R; Gao, QH; Hu, JT; Xing, Z; Zhang, MX; Wang, MH; Wu, GZ; Wu, GZ (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China.; Wu, GZ (reprint author), ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 200031, Peoples R China.
2016
发表期刊RSC ADVANCES
ISSN2046-2069
卷号6期号:90页码:87221-87229
文章类型期刊论文
摘要A new chelating polyethylene fibre was synthesised by the radiation-induced graft copolymerisation of glycidyl methacrylate (GMA) onto ultrahigh-molecular-weight polyethylene (UHMWPE) fibres and subsequent ring-opening reaction with 4-amino-1,2,4-triazole. The chemical structure and surface morphology of the modified fibres were characterised by Fourier transform infrared spectroscopy, scanning electron microscopy and X-ray photoelectron spectroscopy. The adsorption behaviour of the fibrous sorbent for Au(III) was investigated in terms of aqueous-solution pH, contact time, initial metal concentration and competition of coexisting metal ions. Resultant fibres exhibited much higher affinity and selectivity for Au3+ ions than all other metal ions (Mg2+, Fe3+, Cu2+, Ca2+, Ni2+ and Cr6+). The affinity coefficient obtained was as high as 97.5-99.9%. The maximum adsorption amount for Au3+ was 429.4 mg g(-1). The adsorption of Au(III) followed the pseudo-second-order kinetics model controlled by chemical adsorption. The equilibrium data fitted the Langmuir isotherm model well. In particular, this fibrous adsorbent can be regenerated by treatment in 0.5 M thiourea and 0.5 M H2SO4 solution. The high adsorption capacity can be maintained after at least five adsorption-desorption cycles.
DOI10.1039/c6ra14202h
收录类别SCI
语种英语
WOS记录号WOS:000384232600057
引用统计
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/26521
专题中科院上海应用物理研究所2011-2018年
通讯作者Wu, GZ (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China.; Wu, GZ (reprint author), ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 200031, Peoples R China.
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Pang, LJ,Li, R,Gao, QH,et al. Functionalized and reusable polyethylene fibres for Au(III) extraction from aqueous solution with high adsorption capacity and selectivity[J]. RSC ADVANCES,2016,6(90):87221-87229.
APA Pang, LJ.,Li, R.,Gao, QH.,Hu, JT.,Xing, Z.,...&Wu, GZ .(2016).Functionalized and reusable polyethylene fibres for Au(III) extraction from aqueous solution with high adsorption capacity and selectivity.RSC ADVANCES,6(90),87221-87229.
MLA Pang, LJ,et al."Functionalized and reusable polyethylene fibres for Au(III) extraction from aqueous solution with high adsorption capacity and selectivity".RSC ADVANCES 6.90(2016):87221-87229.
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