Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.jcis.2010.01.057
Title: Functionalization of adsorbent with different aliphatic polyamines for heavy metal ion removal: Characteristics and performance
Authors: Liu, C. 
Bai, R. 
Hong, L. 
Liu, T.
Keywords: Adsorption
Characteristics
Heavy metal ion
PGMA
Polyamine
XAFS
Issue Date: May-2010
Source: Liu, C., Bai, R., Hong, L., Liu, T. (2010-05). Functionalization of adsorbent with different aliphatic polyamines for heavy metal ion removal: Characteristics and performance. Journal of Colloid and Interface Science 345 (2) : 454-460. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jcis.2010.01.057
Abstract: This paper examines the characteristics of poly(glycidyl methacrylate) (PGMA) beads functionalized with different aliphatic polyamines as adsorbents and their performance in copper ion adsorption. The four aliphatic polyamines evaluated include ethylenediamine (EDA), diethylenetriamine (DETA), triethylenetetramine (TETA), and tetraethylenepentamine (TEPA). Various analytical tools, including elemental analysis, BET, and XAFS (XANES+EXAFS), were used to characterize the adsorbents in terms of their immobilized amine contents, polyamine densities, and their coordination structures for the adsorption of a typical heavy metal ion, Cu2+. It was found that the immobilized polyamine densities followed the order of EDA>DETA>TETA>TEPA, but the immobilized amine contents followed the opposite order of TEPA>TETA>DETA>EDA. XAFS analysis for the adsorbents after copper ion adsorption revealed that the average coordination number of copper ion with the nitrogen atoms (in the range between 3 and 4) followed the order of DETA
Source Title: Journal of Colloid and Interface Science
URI: http://scholarbank.nus.edu.sg/handle/10635/87513
ISSN: 00219797
DOI: 10.1016/j.jcis.2010.01.057
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