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Reference type: Journal
Authors: Girija P, Mathew B
Article Title: Bioremediation of waste water containing hazardous cadmium ion with ion imprinted interpenetrating polymer networks.
Publication date: 2014
Journal: Advances in Environmental Chemistry
Volume: 2014
Page numbers: Article ID 394841.
DOI: 10.1155/2014/394841
Alternative URL: http://www.hindawi.com/journals/aec/aip/394841/

Abstract: A novel Cd(II) ion-imprinted interpenetrating polymer network (Cd(II)IIP) was prepared by free radical polymerization using alginic acid and NNMBA-crosslinked polyacrylamide in presence of initiator potassium persulphate. Cd(II)-IIP showed higher capacity and selectivity than the non-imprinted polymer (NIP). The sorption capacities of Cd(II)-IIP and NIP for Cd(II) ions were 0.886 and 0.663 meqmole-1, respectively. Kinetics studies showed that the sorption process closely agreed with a pseudo-second-order model. The thermodynamic data suggest that the sorption is a spontaneous endothermic process. Equilibrium experiments showed very good fits with the Langmuir isotherm equation for the monolayer sorption process. Cd(II)-IIP exhibited good reusabality, and the sorption capacity of Cd(II)-IIP was stable within the first 4-cycles without obvious decrease. Also Cd(II)-IIP showed almost 100% removal efficiency for Cd(II) ions in real environmental water samples, indicating that Cd(II)-IIP could have wide application prospects in Cd(II) ion removal.
Template and target information: cadmium ion, Cd(II)
Author keywords: biosorption, ion imprinting, cadmium, selectivity


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