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Reference type: Journal
Authors: Wang HQ, Du YL, Zhang X, Shang HZ, Zhao JD, He JN
Article Title: Preparation and adsorption performance of novel ion imprinting magnetic microspheres.
Publication date: 2016
Journal: Modern Chemical Industry
Volume: 36
Issue: (5)
Page numbers: 57-60.
DOI: 10.16606/j.cnki.issn 0253-4320.2016.05.015
Alternative URL: http://en.cnki.com.cn/Article_en/CJFDTotal-XDHG201605016.htm

Abstract: A novel ion-imprinted magnetic ball (Fe3O4/SiO2/FA) is prepared with fulvic acid as a functional monomer, Ni2+ as a template and Fe3O4/SiO2 as the core. The imprinted polymer is characterized by FT-IR, TG and laser particle size analyzer. The adsorption performance of Fe3O4/SiO2/FA is also evaluated. When the dosage of aqueous solvent is 50 mL, the optimized conditions are: 1 g of Fe3O4/SiO2, 1.2 mL of KH-560, 30 mL of FA (0.01 g/mL), 12 mL of NiCl26H2O (0.03 g/mL) and 60? of reaction temperature. In presence of competitive ions such as Cr3+ and Pb2+, the relative selectivity coefficient of Ni2+/Cr3+ and Ni2+/Pb2+ is 221.44 and 609.72, respectively, indicating that Fe3O4/SiO2/FA have a high selective recognition ability for Ni2+ ion. The ion-imprinted magnetic ball still has good adsorption performance after five adsorption-desorption experiments. 2016, China National Chemical Information Center. All right reserved.
Template and target information: nickel ion, Ni(II)
Author keywords: Adsorption performance, Fulvic acid, imprinted polymer, nickel ion

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