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Reference type: Journal
Authors: Buhani, Narsito, Nuryono, Kunarti ES
Article Title: Production of metal ion imprinted polymer from mercapto-silica through sol-gel process as selective adsorbent of cadmium.
Publication date: 2010
Journal: Desalination
Volume: 251
Issue: (1-3)
Page numbers: 83-89.
DOI: 10.1016/j.desal.2009.09.139
Alternative URL: http://www.sciencedirect.com/science/article/B6TFX-4XH564B-D/2/a5aa12bb3e5a7cda595bc6e92bd7d5bd

Abstract: A Cd(II) imprinted mercapto-functionalized silica gel sorbent was synthesized via a surface imprinting technique for selective adsorbent of Cd(II) ion in aqueous. The adsorbent was characterized using infrared (IR) spectroscopy, scanning electron microscopy (SEM), and energy dispersive x-ray (EDX) spectroscopy. The adsorbent of Cd(II) ion-imprinted ionic polymer (Cd(II)-IIP) has higher capacity and selectivity than the non imprinted polymer (NIP) adsorbent. Adsorption capacity of Cd(II)-IIP and NIP are 83.89 and 35.91 mg g-1 respectively. The largest selectivity coefficients (α) of the Cd(II)-IIP sorbent for Cd(II) in the presence of Ni(II), Cu(II) and Zn(II) are 99.798, 93.045, and 86.617 respectively. The relative selective factor (αr) values of Cd(II)/Ni(II), Cd(II)/Cu(II) and Cd(II)/Zn(II) are 41.687, 65.617 and 66.937, which are greater than 1. The prepared imprinted ionic sorbents exhibit high reusability. The results suggest that these Cd(II)-IIP can be used several times without considerable loss of adsorption capacity
Template and target information: cadmium ion, Cd(II)
Author keywords: ionic imprinting, adsorbent, Mercapto-silica

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