MIPs logo MIPdatabase      MIP2020 Conference logo Use this space
Custom Search
Reference type: Journal
Authors: Shamsipur M, Besharati-Seidani A
Article Title: Synthesis of a novel nanostructured ion-imprinted polymer for very fast and highly selective recognition of copper(II) ions in aqueous media.
Publication date: 2011
Journal: Reactive and Functional Polymers
Volume: 71
Issue: (2)
Page numbers: 131-139.
DOI: 10.1016/j.reactfunctpolym.2010.11.002
Alternative URL: http://www.sciencedirect.com/science/article/B6TY0-51H7043-1/2/2af8ffaba7a7f50d7c8e755df4aa0a82

Abstract: This work reports the preparation of a new Cu2+-imprinted polymeric (IIP) nanoparticles, using 1,4-dihydroxy-9,10-anthraquinone (quinizarin; QZ) as a ligand. The Cu2+ ion found to form a stable 1:1 complex with QZ in dimethylsulfoxide solution. The resulting Cu2+-QZ complex was polymerized with ethyleneglycol dimethacrylate, as a cross-linking monomer, via precipitation polymerization method. The imprint copper ion was removed from the polymeric matrix using 0.1 M HNO3. The Cu2+-imprinted polymeric nanoparticles were characterized by IR spectroscopy, scanning electron microscopy (SEM), N2 adsorption-desorption isotherms and elemental analysis. The SEM micrographs showed colloidal nanoparticles of 60-110 nm in diameter and slightly irregular in shape. Optimum pH for maximum sorption was 7.0. Sorption and desorption of Cu2+ ion on the IIP nanoparticles were quite fast and achieved completely over entire investigated time periods of 2-30 min. Maximum sorbent capacity and enrichment factor for Cu2+ were 346.3 μmol g-1 and 18.4, respectively. The relative standard deviation and detection limit (3σ) of the method were evaluated as 0.97% and 0.3 ng mL-1, respectively. It was found that imprinting results in increased affinity of the material toward Cu2+ ion over other competitor metal ions with the same charge and close ionic radius. The prepared IIP was repeatedly used and regenerated for 12 times without a significant decrease in polymer binding affinity
Template and target information: copper ion, Cu(II)
Author keywords: Cu2+, Ion-imprinted polymeric nanoparticles, precipitation polymerization, Inductively coupled plasma-atomic emission spectrometry, adsorption isotherm

  Periodic table Trainer shirt  PhD Chemist peptide mug    mug featuring the element Copper

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