MIPs logo MIPdatabase      MIP2020 Conference logo Use this space
Custom Search
Reference type: Journal
Authors: Yu TM, Qiao XS, Lu XH, Fan XP
Article Title: Selective adsorption of Zn2+ on surface ion-imprinted polymer.
Publication date: 2016
Journal: Desalination and Water Treatment
Volume: 57
Issue: (33)
Page numbers: 15455-15466.
DOI: 10.1080/19443994.2015.1074115

Abstract: A new type of Zn2+ ion-imprinted polymer (Zn2+-IIP) was synthesized on the surface of attapulgite, displaying high affinity and selectivity to Zn2+. Fourier transform infrared spectra (FTIR) revealed Zn2+-IIP to be an organic-inorganic hybrid polymer, with Zn2+ imprinted cavities formed by CTS groups and connected to the surface of the attapulgite by A-187 cross-linked network. The adsorption kinetic investigation showed that the adsorption of Zn2+on Zn2+-IIP was a pseudo-second-order process. The maximum adsorption capacities of Zn2+ were 0.536, 0.665, 0.715, and 0.722-ámeq/g at 288, 298, 308, and 318 K, respectively, where the activation energy, Ea, was evaluated as 23.8 kJ/mol. By thermodynamic study, Δ H° and Δ S° of the adsorption were determined as 30.862 kJ/mol and 108.664 J/mol K, respectively, while the negative Δ G° decreased with rising temperatures, indicating that the adsorption process was feasible and spontaneous. The adsorption selectivity of the Zn2+-IIP was also investigated via competitive adsorption of Zn2+, Cd2+, Cs+, Co2+, Ba2+, Sr2+, and Pb2+ from a mixture, demonstrating that Zn2+-IIP had the capability of recognizing Zn2+ with high affinity and selectivity. The study of multi adsorption-desorption cycles showed that the Zn2+-IIP can be reused many times without a significant decrease in the adsorption capacity
Template and target information: zinc ion, Zn(II)
Author keywords: adsorption, Zn2+, Ion-imprinted polymer

  I love MIPs hat  multi MIPs logo mug    mug featuring the element Zinc

Molecules Special Issue call      Appeal for information


Join the Society for Molecular Imprinting
Logo of the Society for Molecular Imprinting

New items RSS feed
new items RSS feed  View latest updates

Sign-up for e-mail updates:
Choose between receiving an occasional newsletter or more frequent e-mail alerts.
Click here to go to the sign-up page.

Is your name elemental or peptidic? Enter your name and find out by clicking either of the buttons below!
Other products you may like:
view listings for MIP books on eBay:

Mickey Mouse 90th Anniversary banner