title: An ion-imprinted functionalized SBA-15 adsorbent synthesized by surface imprinting technique via reversible addition-fragmentation chain transfer polymerization for selective removal of Ce(III) from aqueous solution.
abstract: A novel Ce(III) ion-imprinted polymer (Ce(III)-IIP) has been prepared by surface imprinting technique with reversible addition-fragmentation chain transfer (RAFT) polymerization based on support matrix of SBA-15. The prepared adsorbent is characterized by FT-IR, XRD, SEM, TEM, nitrogen adsorption-desorption, GPC, and TGA. The results suggest that the surface imprinted polymer synthesized by RAFT is a thin layer. For adsorption experiments, Ce(III)-IIP is investigated to remove Ce(III) by column study at different flow rates, initial metal ion concentrations, and adsorption temperature. The dynamic kinetics analyses reveal that the overall adsorption process is successfully fitted with the pseudo-first-order kinetic model and the equilibrium time was 60 min. Meanwhile, the experimental data is in good agreement with Thomas model. Ce(III)-IIP has the excellent selectivity and regenerate property. Meanwhile, the proposed method has been successfully applied in the removal of Ce(III) in natural water samples with satisfactory results. All the results suggest that Ce(III)-IIP could be used as an excellent adsorbent for efficient removal of Ce(III) from aqueous solution.
authors: School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China.
authors: Minjia
authors: M
authors: Meng
authors: School of Biology and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212013, China.
authors: Xiangguo
authors: X
authors: Meng
authors: School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China. Electronic address: lyan@mail.ujs.edu.cn.
authors: Yan
authors: Y
authors: Liu
authors: School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212013, China.
authors: Zhanchao
authors: Z
authors: Liu
authors: School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China.
authors: Juan
authors: J
authors: Han
authors: School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China.
authors: Yun
authors: Y
authors: Wang
authors: School of Biology and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212013, China.
authors: Min
authors: M
authors: Luo
authors: School of Biology and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212013, China.
authors: Rui
authors: R
authors: Chen
authors: School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China.
authors: Liang
authors: L
authors: Ni
authors: School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China.
authors: Yongsheng
authors: Y
authors: Yan
mesh_terms: D000327:Adsorption; D002563:Cerium / Q000737:chemistry*; D058105:Polymerization; D012822:Silicon Dioxide / Q000737:chemistry*; D012996:Solutions; D013696:Temperature; D014865:Waste Disposal, Fluid / Q000379:methods; D014874:Water Pollutants, Chemical / Q000737:chemistry*
chemical_list: C509969:SBA-15; D012996:Solutions; D014874:Water Pollutants, Chemical; D002563:Cerium; D012822:Silicon Dioxide
keywords: Column study; Reversible addition–fragmentation chain transfer (RAFT) polymerization; SBA-15; Surface imprinting technique