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HERO ID
8561425
Reference Type
Journal Article
Title
Preparation and characterization of Cr(VI) anion imprinted fluorescence sensing microspheres
Author(s)
Li, WF; Dai, Z; Huang, DD
Year
2016
Publisher
China National Chemical Information Center
Volume
36
Issue
12
Page Numbers
51-55
Language
Chinese
DOI
10.16606/j.cnki.issn 0253-4320.2016.12.012
Abstract
A novel anion-imprinted and fluorescent sensing microspheres (IFMMs) is presented, which not only could imprint the Cr(VI) anions, but also could detect the Cr(VI) by changing fluorescence before and after imprinting. The IFMMs is prepared by precipitation polymerization, using SiO2 coated Fe3O4 nanoparticles (Fe3O4/SiO2) as the seeds, N-vinyl carbazole (NVC) as fluorescent monomer, N-isopropylacrylamide (NIPAM) as polymerizable monomers, divinylbenzene (DVB) as cross-linker and Cr(VI) anion as the template. The result shows that the microspheres have good imprinting and sensing properties for Cr(VI). The maximum adsorption capacity of Cr(VI) in aqueous solution is 90.84 mg/g and the maximum adsorption efficiency is 85.31%. © 2016, China National Chemical Information Center. All right reserved.
Keywords
Cr(VI) anion; Fluorescence sensing; Ion imprinting
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