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A comparative study of two chelating ion-exchange resins for the removal of chromium(III) from aqueous solution.
J Hazard Mater. 2003 Jun 27; 100(1-3):231-43.JH

Abstract

Macroporous resins containing iminodiacetic acid (IDA) groups (Lewatit TP 207 and Chelex-100) were investigated as a function of concentration, temperature and pH for their sorption properties towards chromium(III). The chromium(III) ions sorbed onto the resin and in the equilibrium concentration were determined by inductively coupled plasma spectrophotometer. The maximum sorption for chromium ions was observed at pH 4.5. Solution pH had a strong effect on the equilibrium constant of Cr(III). The equilibrium constants were 320 and 7 at pH value 4.5 for Lewatit TP 207 and Chelex-100 resin, respectively. The Langmuir isotherm was used to describe observed sorption phenomena. Both the sorbents had high bonding constants with Lewatit TP 207 showing stronger binding. The equilibrium related to adsorption capacity and energy of adsorption was obtained by using plots of Langmuir adsorption isotherm. It was observed that the maximum adsorption capacity of 0.288 mmol of Cr(III)/g for Chelex-100 and 0.341 mmol of Cr(III)/g for Lewatit TP 207 was achieved at pH of 4.5. The rise in temperature caused a slight increase in the value of the equilibrium constant (K(c)) for the sorption of chromium(III) ion.

Authors+Show Affiliations

Department of Chemistry, Suleyman Demirel University, 32260 Isparta, Turkey. fgode@fef.sdu.edu.trNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

12835025

Citation

Gode, F, and E Pehlivan. "A Comparative Study of Two Chelating Ion-exchange Resins for the Removal of chromium(III) From Aqueous Solution." Journal of Hazardous Materials, vol. 100, no. 1-3, 2003, pp. 231-43.
Gode F, Pehlivan E. A comparative study of two chelating ion-exchange resins for the removal of chromium(III) from aqueous solution. J Hazard Mater. 2003;100(1-3):231-43.
Gode, F., & Pehlivan, E. (2003). A comparative study of two chelating ion-exchange resins for the removal of chromium(III) from aqueous solution. Journal of Hazardous Materials, 100(1-3), 231-43.
Gode F, Pehlivan E. A Comparative Study of Two Chelating Ion-exchange Resins for the Removal of chromium(III) From Aqueous Solution. J Hazard Mater. 2003 Jun 27;100(1-3):231-43. PubMed PMID: 12835025.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - A comparative study of two chelating ion-exchange resins for the removal of chromium(III) from aqueous solution. AU - Gode,F, AU - Pehlivan,E, PY - 2003/7/2/pubmed PY - 2003/9/25/medline PY - 2003/7/2/entrez SP - 231 EP - 43 JF - Journal of hazardous materials JO - J Hazard Mater VL - 100 IS - 1-3 N2 - Macroporous resins containing iminodiacetic acid (IDA) groups (Lewatit TP 207 and Chelex-100) were investigated as a function of concentration, temperature and pH for their sorption properties towards chromium(III). The chromium(III) ions sorbed onto the resin and in the equilibrium concentration were determined by inductively coupled plasma spectrophotometer. The maximum sorption for chromium ions was observed at pH 4.5. Solution pH had a strong effect on the equilibrium constant of Cr(III). The equilibrium constants were 320 and 7 at pH value 4.5 for Lewatit TP 207 and Chelex-100 resin, respectively. The Langmuir isotherm was used to describe observed sorption phenomena. Both the sorbents had high bonding constants with Lewatit TP 207 showing stronger binding. The equilibrium related to adsorption capacity and energy of adsorption was obtained by using plots of Langmuir adsorption isotherm. It was observed that the maximum adsorption capacity of 0.288 mmol of Cr(III)/g for Chelex-100 and 0.341 mmol of Cr(III)/g for Lewatit TP 207 was achieved at pH of 4.5. The rise in temperature caused a slight increase in the value of the equilibrium constant (K(c)) for the sorption of chromium(III) ion. SN - 0304-3894 UR - https://www.unboundmedicine.com/medline/citation/12835025/A_comparative_study_of_two_chelating_ion_exchange_resins_for_the_removal_of_chromium_III__from_aqueous_solution_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304389403001109 DB - PRIME DP - Unbound Medicine ER -