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Reference type: Journal
Authors: Gao BJ, Du JM, Zhang YY
Article Title: Preparation of Arsenate Anion Surface-Imprinted Material IIP-PDMC/SiO2 and Study on Its Ion Recognition Property.
Publication date: 2013
Journal: Industrial & Engineering Chemistry Research
Volume: 52
Issue: (23)
Page numbers: 7651-7659.
DOI: 10.1021/ie400440k

Abstract: By molecular design, a new ion surface-imprinting technique was set up based on surface-initiated graft-polymerization, and arsenate anion surface-imprinted material with high performance was prepared for the first time. A redox initiating system was constituted by the amino groups on the surface-modified silica gel particles and the ammonium persulphate in the solution. The cationic monomer 2-methacryloyloxyethyl-trimethyl ammonium chloride (DMC) was used as functional monomer and N,N'-methylenebisacrylamide (MBA) was used as cross-linker. In the solution, the monomer molecules were arranged around the template ion, arsenate anion, via ion exchange action, and then the arsenate anion surface-imprinting was carried out along with the surface-initiated graft-polymerization of DMC and MBA, forming arsenate anion surface-imprinted material IIP-PDMC/SiO2. The experimental results show IIP-PDMC/SiO2 possesses specific recognition selectivity and excellent binding affinity for arsenate anion. The selectivity coefficients of IIP-PDMC/SiO2 for arsenate anion are 8.814 and 7.898 relative to chromate and nitrate ions, respectively
Template and target information: arsenate anion

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