fulltext.study @t Gmail

Adsorption mechanism for imprinted ion (Ni2+) of the surface molecular imprinting adsorbent (SMIA)

Paper ID Volume ID Publish Year Pages File Format Full-Text
4436 226 2008 7 PDF Available
Title
Adsorption mechanism for imprinted ion (Ni2+) of the surface molecular imprinting adsorbent (SMIA)
Abstract

The adsorption mechanism for the imprinted ion (Ni2+) of a novel surface molecular imprinting adsorbent (SMIA) prepared by the imprinting technique was studied. The interaction mechanism for the imprinted ion (Ni2+) with –OH and –NH2 groups on the chitosan molecules was testified by Fourier transform-infrared spectrometry (FT-IR) and X-ray photoelectron spectroscopy (XPS). By the means of FT-IR and XPS analysis, there exist two kinds of –NH2 groups on the chitosan molecule. Most –NH2 groups showed higher adsorption activity owing to using the imprinting technique in the adsorbent preparation, whereas a few –NH2 groups displayed a lower adsorption activity because of being cross-linked in preparation, which caused different adsorption mechanisms for Ni2+. Compared with the surface molecular non-imprinting adsorbent (non-SMIA), both –OH and –NH2 groups on the imprinted adsorbent surface could provide higher adsorption activity to Ni2+ based on FT-IR and XPS analyses. SMIA had more pores and bigger specific surface area than non-SMIA according to the distribution of the pore diameter and specific surface area analyses. Based on the above research, a higher adsorption capacity and a better selectivity for the imprinted ions of SMIA could be interpreted.

Keywords
Adsorption mechanism; Metal ion; The surface molecular imprinting adsorbent (SMIA); Fourier transform-infrared spectrometry; X-ray photoelectron spectroscopy
First Page Preview
Adsorption mechanism for imprinted ion (Ni2+) of the surface molecular imprinting adsorbent (SMIA)
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Biochemical Engineering Journal - Volume 39, Issue 3, 1 May 2008, Pages 503–509
Authors
, , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us