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Reference type: Conference Proceeding
Authors: Asgharia K, Faghihian H
Publication date: 2011
Article title: Selective solid-phase extraction of Cu2+ from aqueous solutions by using surface imprinting technique.
Alternative URL: http://icc2011.ir/Docs/D.pdf

Conference information: Abstracts, 15th Iranian Chemistry Congress

Abstract: A new sorbent for selective solid-phase extraction of Cu2+ was prepared by surface imprinting technique. Maximum adsorption of Cu2+ was obtained at pH 5 after 5 min of contacting time. Maximum static adsorption capacity of Cu(II)-imprinted and nonimprinted functionalized silica gel wasrespectively 67.27 and 56.45 mg.g-1. Using column procedure,the breakthrough curve was also plotted and the breakthrough capacity was calculated. The selectivity factor of the sorbent was investigated by batch procedure. Zn 2+ and Ni2+ were chosen as competitive ions. Tolerance limits of Zn2+ and Ni2+ were respectively 8000 and 10100 mg.L-1. The Cu(II)-imprinted silica gel sorbent show higher adsorption capacity and selectivity factor than non-imprinted one. The synthesized sorbent has good reusability and stability in room temperature. It was found that by using Langmuir isotherm the experimental resultscould be well described, indicating the adsorption is monolayer and the surface of the sorbent is homogenous
Template and target information: copper ion, Cu(II)

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