skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Chelation Properties of Modified Humic Acids Toward Some Trivalent Lanthanide Ions

Abstract

Three kinds of humic acids, Fluka (I), Fluka (II), and Ega-chemie (III) were modified through condensation with formaldehyde to afford polymers I, II, and III, respectively. The chelation behavior of these modified humic acids polymers towards the trivalent lanthanide metal-ions, La3+, Ce3+, Nd3+, Sm3+, and Gd3+ was studied by a batch equilibration technique at 25 deg. C as a function of contact time, pH, counter ion and counter ion concentration. The highest metal-ion uptake of the three polymers was achieved at pH 7.0 and by using perchlorate as a counter ion. Results of the study have revealed that polymer II has the highest metal-ion uptake capacity, and that the metal-ion uptake falls in the order: Gd3+ > Sm3+ > Nd3+ > La3+ {approx_equal} Ce3+.

Authors:
; ;  [1]
  1. Department of Chemistry, Faculty of Science, University of Jordan, Amman, 11942 (Jordan)
Publication Date:
OSTI Identifier:
21061708
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 909; Journal Issue: 1; Conference: ICSSST 2006: 2. international conference on solid state science and technology 2006, Kuala Terengganu (Malaysia), 4-6 Sep 2006; Other Information: DOI: 10.1063/1.2739821; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; CATIONS; CHELATES; FORMALDEHYDE; GADOLINIUM IONS; HUMIC ACIDS; ION-MOLECULE COLLISIONS; LANTHANUM IONS; NEODYMIUM IONS; ORGANIC POLYMERS; PERCHLORATES; PH VALUE; SAMARIUM IONS; UPTAKE

Citation Formats

Yaghmour, Remah N., Khalili, Fawwaz I., and Mubarak, Mohammad S. Chelation Properties of Modified Humic Acids Toward Some Trivalent Lanthanide Ions. United States: N. p., 2007. Web. doi:10.1063/1.2739821.
Yaghmour, Remah N., Khalili, Fawwaz I., & Mubarak, Mohammad S. Chelation Properties of Modified Humic Acids Toward Some Trivalent Lanthanide Ions. United States. doi:10.1063/1.2739821.
Yaghmour, Remah N., Khalili, Fawwaz I., and Mubarak, Mohammad S. Wed . "Chelation Properties of Modified Humic Acids Toward Some Trivalent Lanthanide Ions". United States. doi:10.1063/1.2739821.
@article{osti_21061708,
title = {Chelation Properties of Modified Humic Acids Toward Some Trivalent Lanthanide Ions},
author = {Yaghmour, Remah N. and Khalili, Fawwaz I. and Mubarak, Mohammad S.},
abstractNote = {Three kinds of humic acids, Fluka (I), Fluka (II), and Ega-chemie (III) were modified through condensation with formaldehyde to afford polymers I, II, and III, respectively. The chelation behavior of these modified humic acids polymers towards the trivalent lanthanide metal-ions, La3+, Ce3+, Nd3+, Sm3+, and Gd3+ was studied by a batch equilibration technique at 25 deg. C as a function of contact time, pH, counter ion and counter ion concentration. The highest metal-ion uptake of the three polymers was achieved at pH 7.0 and by using perchlorate as a counter ion. Results of the study have revealed that polymer II has the highest metal-ion uptake capacity, and that the metal-ion uptake falls in the order: Gd3+ > Sm3+ > Nd3+ > La3+ {approx_equal} Ce3+.},
doi = {10.1063/1.2739821},
journal = {AIP Conference Proceedings},
number = 1,
volume = 909,
place = {United States},
year = {Wed May 09 00:00:00 EDT 2007},
month = {Wed May 09 00:00:00 EDT 2007}
}