Preparation of Arsenate Anion Surface-Imprinted Material IIP-PDMC/SiO sub(2) and Study on Its Ion Recognition Property
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-mo...
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Published in | Industrial & engineering chemistry research Vol. 52; no. 23; pp. 7651 - 7659-7651-7659 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
12.06.2013
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Subjects | |
Online Access | Get full text |
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Summary: | 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/SiO sub(2). The experimental results show IIP-PDMC/SiO sub(2) possesses specific recognition selectivity and excellent binding affinity for arsenate anion. The selectivity coefficients of IIP-PDMC/SiO sub(2) for arsenate anion are 8.814 and 7.898 relative to chromate and nitrate ions, respectively. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 content type line 23 ObjectType-Feature-2 |
ISSN: | 0888-5885 1520-5045 |
DOI: | 10.1021/ie400440k |