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Removal of copper(II) using chitin/chitosan nano-hydroxyapatite composite.
Int J Biol Macromol. 2011 Jan 01; 48(1):119-24.IJ

Abstract

Polymeric composites made up of nano-hydroxyapatite (n-HAp) with chitin and chitosan have been prepared and studied for the removal of Cu(II) ions from the aqueous solution. The sorption capacity (SC) of n-HAp, n-HAp/chitin (n-HApC) composite and n-HAp/chitosan (n-HApCs) composite were found to be 4.7, 5.4 and 6.2 mg/g respectively with a minimum contact time of 30 min. Batch adsorption studies were conducted to optimize various equilibrating conditions like contact time, pH and selectivity of metal ion. The sorbents were characterized by FTIR, TEM, XRD and SEM with EDAX analysis. The sorption process was explained with Freundlich and Langmuir isotherms respectively. Thermodynamic parameters such as ΔG°, ΔH° and ΔS° were calculated to understand the nature of sorption. A suitable mechanism for copper sorption was established and the selectivity of the metal ions for the composites was identified.

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Publisher Full Text

Authors+Show Affiliations

Rajiv Gandhi M
Department of Chemistry, Gandhigram Rural University, Gandhigram 624302, Tamilnadu, India.
Kousalya GN
No affiliation info available
Meenakshi S
No affiliation info available

MeSH

AdsorptionChitinChitosanCopperDurapatiteHydrogen-Ion ConcentrationIonsNanocompositesSpectroscopy, Fourier Transform InfraredTemperatureTime Factors

Pub Type(s)

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

Language

eng

PubMed ID

20970443

Citation

Rajiv Gandhi, Muniyappan, et al. "Removal of copper(II) Using Chitin/chitosan Nano-hydroxyapatite Composite." International Journal of Biological Macromolecules, vol. 48, no. 1, 2011, pp. 119-24.
Rajiv Gandhi M, Kousalya GN, Meenakshi S. Removal of copper(II) using chitin/chitosan nano-hydroxyapatite composite. Int J Biol Macromol. 2011;48(1):119-24.
Rajiv Gandhi, M., Kousalya, G. N., & Meenakshi, S. (2011). Removal of copper(II) using chitin/chitosan nano-hydroxyapatite composite. International Journal of Biological Macromolecules, 48(1), 119-24. https://doi.org/10.1016/j.ijbiomac.2010.10.009
Rajiv Gandhi M, Kousalya GN, Meenakshi S. Removal of copper(II) Using Chitin/chitosan Nano-hydroxyapatite Composite. Int J Biol Macromol. 2011 Jan 1;48(1):119-24. PubMed PMID: 20970443.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Removal of copper(II) using chitin/chitosan nano-hydroxyapatite composite. AU - Rajiv Gandhi,Muniyappan, AU - Kousalya,G N, AU - Meenakshi,S, Y1 - 2010/10/21/ PY - 2010/08/21/received PY - 2010/10/08/revised PY - 2010/10/13/accepted PY - 2010/10/26/entrez PY - 2010/10/26/pubmed PY - 2011/4/5/medline SP - 119 EP - 24 JF - International journal of biological macromolecules JO - Int J Biol Macromol VL - 48 IS - 1 N2 - Polymeric composites made up of nano-hydroxyapatite (n-HAp) with chitin and chitosan have been prepared and studied for the removal of Cu(II) ions from the aqueous solution. The sorption capacity (SC) of n-HAp, n-HAp/chitin (n-HApC) composite and n-HAp/chitosan (n-HApCs) composite were found to be 4.7, 5.4 and 6.2 mg/g respectively with a minimum contact time of 30 min. Batch adsorption studies were conducted to optimize various equilibrating conditions like contact time, pH and selectivity of metal ion. The sorbents were characterized by FTIR, TEM, XRD and SEM with EDAX analysis. The sorption process was explained with Freundlich and Langmuir isotherms respectively. Thermodynamic parameters such as ΔG°, ΔH° and ΔS° were calculated to understand the nature of sorption. A suitable mechanism for copper sorption was established and the selectivity of the metal ions for the composites was identified. SN - 1879-0003 UR - https://www.unboundmedicine.com/medline/citation/20970443/Removal_of_copper_II__using_chitin/chitosan_nano_hydroxyapatite_composite_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0141-8130(10)00322-3 DB - PRIME DP - Unbound Medicine ER -