title: Sweet potato starch residue as starting material to prepare polyacrylonitrile adsorbent via SI-SET-LRP.
abstract: Sweet potato starch residue (SPSR) was used as starting material to prepare an eco-friendly adsorbent. SPSR was modified by bromoacetyl bromide to obtain a macroinitiator for surface-initiated single electron transfer-living radical polymerization (SI-SET-LRP) of acrylonitrile (AN) catalyzed by La(0)/hexamethylenetetramine (HMTA) in N,N-dimethylformamide (DMF) in the presence of ascorbic acid (VC). The amidoxime (AO) adsorbent was prepared by the reaction of the graft copolymer bromoactylated sweet potato starch (BSPS)/polyacrylonitrile (BSPS-g-PAN) with hydroxylamine. The maximum adsorption capacity for Hg(II) was 4.03 mmol·g(-1). This simple method provided a novel approach to recycle and reuse agricultural residues for controlling heavy metal pollution.
authors: School of Chemistry and Materials Science, Ludong University , Yantai 264025, China.
authors: Zhihai
authors: Z
authors: Hao
authors: Dongju
authors: D
authors: Wang
authors: Hou
authors: H
authors: Chen
authors: Jinming
authors: J
authors: Sun
authors: Yuanyuan
authors: Y
authors: Xu
mesh_terms: D000180:Acrylic Resins / Q000737:chemistry*; D000327:Adsorption; D052918:Environmental Restoration and Remediation / Q000295:instrumentation* / Q000379:methods; D027723:Ipomoea batatas / Q000737:chemistry*; D007700:Kinetics; D008628:Mercury / Q000737:chemistry*; D010936:Plant Extracts / Q000737:chemistry*; D058105:Polymerization; D011108:Polymers / Q000138:chemical synthesis / Q000737:chemistry*; D059027:Recycling; D013213:Starch / Q000737:chemistry*
chemical_list: D000180:Acrylic Resins; D010936:Plant Extracts; D011108:Polymers; C010504:polyacrylonitrile; D013213:Starch; D008628:Mercury