MIPs logo MIPdatabase      Use this space
Custom Search
Reference type: Journal
Authors: Wang WS, Li YB, Gao BJ, Huang XW, Zhang YQ, Xu Y, An FQ
Article Title: Effective removal of Fe(II) impurity from rare earth solution using surface imprinted polymer.
Publication date: 2013
Journal: Chemical Engineering Research and Design
Volume: 91
Issue: (12)
Page numbers: 2759-2764.
DOI: 10.1016/j.cherd.2013.05.006
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0263876213001974

Abstract: Rare earth is a very important resource. But, impurities, such as Fe2+, have great influence on the properties of rare earth material. In this paper, a novel Fe2+-ionic imprinted polyamine functionalized silica gel adsorbent was prepared by a surface imprinting technique for selective adsorption of Fe2+ from rare earth solution. Firstly, functional macromolecule polyethyleneimine (PEI) was grafted onto the surfaces of silica gel particles, and the PEI/SiO2 was formed. Secondly, the ionic imprinting process was carried out using Fe2+ ion as a template, and Cr3+ ionic imprinting polyamine IIP-PEI/SiO2 was prepared. The adsorption and recognition properties of IIP-PEI/SiO2 for Fe2+ were studied in detail, and the effects of main imprinting conditions, such as the amount of crosslinking agent and reaction time, on the adsorption property of the imprinted material IIP-PEI/SiO2 were examined. The experimental results showed that the IIP-PEI/SiO2 possesses strong adsorption affinity, specific recognition ability, and excellent selectivity for Fe2+. The adsorption capacity could reach to 0.334 mmol g-1, and relative selectivity coefficients to Pr3+ and Ce3+ are 23.25 and 18.42, respectively. Besides, the IIP-PEI/SiO2 was regenerated easily using diluted hydrochloric acid solution as eluent and IIP-PEI/SiO2 possesses better reusability
Template and target information: ferrous ion, Fe(II)
Author keywords: Surface ionic imprinting, selectivity, removal, Fe(II), Rare earth, silica gel


  Periodic table Nerd shirt  Cryptic logo shirt    mug featuring the element Iron

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:
US listings   UK listings

Searching for Molecular Imprinting books on Amazon.com:
Molecular Imprinting
Imprinted Polymers
Polymer Chemistry
Organic Chemistry
Biosensors

Find what you need at Amazon.com

Lab supplies from Amazon