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Green and efficient synthesis of an adsorbent fiber by preirradiation‐induced grafting of PDMAEMA and its Au(III) adsorption and reduction performance
Author(s) -
Liu Xiyan,
Ao Junxuan,
Yang Xiaojuan,
Ling Changjian,
Zhang Bowu,
Wang Ziqiang,
Yu Ming,
Shen Rongfang,
Ma Hongjuan,
Li Jingye
Publication year - 2017
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.44955
Subject(s) - adsorption , grafting , aqueous solution , desorption , polypropylene , fiber , polymerization , nuclear chemistry , polymer chemistry , polyethylene , yield (engineering) , chemistry , methacrylate , selectivity , metal ions in aqueous solution , materials science , chemical engineering , metal , polymer , organic chemistry , catalysis , composite material , engineering
ABSTRACT N , N ‐Dimethylamino ethyl methacrylate (DMAEMA) is covalently bonded on a commercial polyethylene‐coated polypropylene skin‐core structure fiber (PE/PP) in aqueous and MeOH/H 2 O solutions by a one‐step green reaction using radiation‐induced graft polymerization. The effects of the absorbed dose and solvent system on grafting yield are investigated, while the chemical and physical properties of the functionalized fiber are also evaluated. The fiber with a D g of 51.6% exhibited good adsorption capacity of Au(III) ions over a large range of concentrations (from 10 to 2.5 g L −1 ) in both batch and flow‐through adsorption tests. The highest capacity of Au was 949.3 mg g −1 . After elution, the adsorbents can be reused without any further regeneration for at least five adsorption‐desorption cycles. Additionally, the fibers show high selectivity for Au(III). The distribution coefficient of Au(III) is 10 4 to 10 5 times higher than that for Cu(II), Fe(III), Ni(II), and Pb(II) even at 100 times lower Au(III) concentration compared to the co‐existing metal ion concentration. This study provides an effective and novel approach for gold recovery from aqueous solutions. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017 , 134 , 44955.