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Authors: Kang RF, Qiu L, Fang LL, Yu RP, Chen Y, Lu X, Luo XB
Article Title: A novel magnetic and hydrophilic ion-imprinted polymer as a selective sorbent for the removal of cobalt ions from industrial wastewater.
Publication date: 2016
Journal: Journal of Environmental Chemical Engineering
Volume: 4
Issue: (2)
Page numbers: 2268-2277.
DOI: 10.1016/j.jece.2016.04.010
Alternative URL: http://www.sciencedirect.com/science/article/pii/S2213343716301403
Abstract: A novel magnetic cobalt ion-imprinted polymer (Co(II)-IIP) was prepared by precipitation polymerization using 1-vinylimidazole as a functional monomer. The relative selectivity coefficients of Co(II)-IIP for Co(II)/Cu(II), Co(II)/Cd(II), Co(II)/Zn(II), and Co(II)/Pb(II) were 19.99, 50.28, 11.02, and 7.56, respectively. The experimental datas fit well with the Langmuir adsorption isotherm. The max Co-adsorption capacity obtained from the Langmuir isotherm is 23.09 mg/g for Co(II)-IIP. D-R model suggests that chemisorption is the dominant adsorption mechanism. The kinetics studies indicated that the adsorption process closely correlated with a pseudo-second-order model. Co(II)-IIP can be reused more than four times, which demonstrate it have strong performance stability. TLC plates experimental verified that the imprinted material have good hydrophilic property. In addition, Co(II)-IIP can remove Co(II) ion with higher 96% from wasterwater, which confirms it is good adsorbents for the removal of Co(II)
Template and target information: cobalt ion, Co(II)
Author keywords: Magnetic ion-imprinted polymer, Co(II), Hydrophilicity, removal
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