Use of unmodified orange peel for the adsorption of Cd(II), Pb(II) and Hg(II) ions in aqueous solutions

Egwuatu Chinyelu; Umedum Ngozi; Ochiagha Kate; Ogbugo Sixtus

doi:doi:10.11648/j.ajpc.20150403.11

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Use of unmodified orange peel for the adsorption of Cd(II), Pb(II) and Hg(II) ions in aqueous solutions

Egwuatu Chinyelu, Umedum Ngozi, Ochiagha Kate, Ogbugo Sixtus

Published in American Journal of Physical Chemistry (Volume 4, Issue 3)

Received: 29 November 2014 Accepted: 9 December 2014 Published: 4 July 2015

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Abstract

Ground orange peel (GOP) was used as adsorbent for Cd(II), Pb(II) and Hg(II) ions in aqueous solutions. Several experiments with variation of some factors namely: initial concentration of the heavy metal ions, contact time, temperature and pH were carried out. FT-IR spectrum of GOP showed the presence of different functional groups on its surface. Equilibrium data were analysed by Langmuir, Freundlich, and Temkin isotherms. Hg (II) and Cd (II) adsorptions were better described by Temkin isotherm while that of Pub (II) was best described Freundlich isotherm. Pseudo second order kinetics with higher R2 values described adsorption in all cases. Adsorption of Hg (II) was maximum at pH 4, while those of Cd (II) and Pub (II) ions were maximum at pH 6. Thermodynamics study showed that the adsorption processes of Pb(II) and Hg(II) ions were endothermic while that of Cd(II) ions was exothermic in nature.

Published in	American Journal of Physical Chemistry (Volume 4, Issue 3)
DOI	10.11648/j.ajpc.20150403.11
Page(s)	21-29
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2015. Published by Science Publishing Group

Keywords

Orange Peels Adsorbent, Adsorption Isotherms, Kinetics, Thermodynamics, pH

References

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[17]	Igwe, J. C., Abia, A. A., (2007) Equilibrium sorption isotherm studies of Cd(II), Pb(II) and Zn(II) ions detoxification from waste water using unmodified and and EDTA-modified maize husk. Electron J. Biotechnol., 10:536–548
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APA Style

Egwuatu Chinyelu, Umedum Ngozi, Ochiagha Kate, Ogbugo Sixtus. (2015). Use of unmodified orange peel for the adsorption of Cd(II), Pb(II) and Hg(II) ions in aqueous solutions. American Journal of Physical Chemistry, 4(3), 21-29. https://doi.org/10.11648/j.ajpc.20150403.11

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ACS Style

Egwuatu Chinyelu; Umedum Ngozi; Ochiagha Kate; Ogbugo Sixtus. Use of unmodified orange peel for the adsorption of Cd(II), Pb(II) and Hg(II) ions in aqueous solutions. Am. J. Phys. Chem. 2015, 4(3), 21-29. doi: 10.11648/j.ajpc.20150403.11

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AMA Style

Egwuatu Chinyelu, Umedum Ngozi, Ochiagha Kate, Ogbugo Sixtus. Use of unmodified orange peel for the adsorption of Cd(II), Pb(II) and Hg(II) ions in aqueous solutions. Am J Phys Chem. 2015;4(3):21-29. doi: 10.11648/j.ajpc.20150403.11

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@article{10.11648/j.ajpc.20150403.11,
  author = {Egwuatu Chinyelu and Umedum Ngozi and Ochiagha Kate and Ogbugo Sixtus},
  title = {Use of unmodified orange peel for the adsorption of Cd(II), Pb(II) and Hg(II) ions in aqueous solutions},
  journal = {American Journal of Physical Chemistry},
  volume = {4},
  number = {3},
  pages = {21-29},
  doi = {10.11648/j.ajpc.20150403.11},
  url = {https://doi.org/10.11648/j.ajpc.20150403.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajpc.20150403.11},
  abstract = {Ground orange peel (GOP) was used as adsorbent for Cd(II), Pb(II) and Hg(II) ions in aqueous solutions. Several experiments with variation of some factors namely: initial concentration of the heavy metal ions, contact time, temperature and pH were carried out. FT-IR spectrum of GOP showed the presence of different functional groups on its surface.  Equilibrium data were analysed by Langmuir, Freundlich, and Temkin isotherms. Hg (II) and Cd (II) adsorptions were better described by Temkin isotherm while that of Pub (II) was best described Freundlich isotherm. Pseudo second order kinetics with higher R2 values described adsorption in all cases. Adsorption of Hg (II) was maximum at pH 4, while those of Cd (II) and Pub (II) ions were maximum at pH 6. Thermodynamics study showed that the adsorption processes of Pb(II) and Hg(II) ions were  endothermic while that of Cd(II) ions was exothermic in nature.},
 year = {2015}
}

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TY  - JOUR
T1  - Use of unmodified orange peel for the adsorption of Cd(II), Pb(II) and Hg(II) ions in aqueous solutions
AU  - Egwuatu Chinyelu
AU  - Umedum Ngozi
AU  - Ochiagha Kate
AU  - Ogbugo Sixtus
Y1  - 2015/07/04
PY  - 2015
N1  - https://doi.org/10.11648/j.ajpc.20150403.11
DO  - 10.11648/j.ajpc.20150403.11
T2  - American Journal of Physical Chemistry
JF  - American Journal of Physical Chemistry
JO  - American Journal of Physical Chemistry
SP  - 21
EP  - 29
PB  - Science Publishing Group
SN  - 2327-2449
UR  - https://doi.org/10.11648/j.ajpc.20150403.11
AB  - Ground orange peel (GOP) was used as adsorbent for Cd(II), Pb(II) and Hg(II) ions in aqueous solutions. Several experiments with variation of some factors namely: initial concentration of the heavy metal ions, contact time, temperature and pH were carried out. FT-IR spectrum of GOP showed the presence of different functional groups on its surface.  Equilibrium data were analysed by Langmuir, Freundlich, and Temkin isotherms. Hg (II) and Cd (II) adsorptions were better described by Temkin isotherm while that of Pub (II) was best described Freundlich isotherm. Pseudo second order kinetics with higher R2 values described adsorption in all cases. Adsorption of Hg (II) was maximum at pH 4, while those of Cd (II) and Pub (II) ions were maximum at pH 6. Thermodynamics study showed that the adsorption processes of Pb(II) and Hg(II) ions were  endothermic while that of Cd(II) ions was exothermic in nature.
VL  - 4
IS  - 3
ER  -

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Author Information

Egwuatu Chinyelu

Department of Pure and Industrial Chemistry, Nnamdi Azikiwe University, P. M. B. 5025 Awka, Anambra State, South Eastern Nigeria
Umedum Ngozi

Department of Pure and Industrial Chemistry, Nnamdi Azikiwe University, P. M. B. 5025 Awka, Anambra State, South Eastern Nigeria
Ochiagha Kate

Department of Pure and Industrial Chemistry, Nnamdi Azikiwe University, P. M. B. 5025 Awka, Anambra State, South Eastern Nigeria
Ogbugo Sixtus

Department of Pure and Industrial Chemistry, Nnamdi Azikiwe University, P. M. B. 5025 Awka, Anambra State, South Eastern Nigeria

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APA Style

Egwuatu Chinyelu, Umedum Ngozi, Ochiagha Kate, Ogbugo Sixtus. (2015). Use of unmodified orange peel for the adsorption of Cd(II), Pb(II) and Hg(II) ions in aqueous solutions. American Journal of Physical Chemistry, 4(3), 21-29. https://doi.org/10.11648/j.ajpc.20150403.11

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ACS Style

Egwuatu Chinyelu; Umedum Ngozi; Ochiagha Kate; Ogbugo Sixtus. Use of unmodified orange peel for the adsorption of Cd(II), Pb(II) and Hg(II) ions in aqueous solutions. Am. J. Phys. Chem. 2015, 4(3), 21-29. doi: 10.11648/j.ajpc.20150403.11

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AMA Style

Egwuatu Chinyelu, Umedum Ngozi, Ochiagha Kate, Ogbugo Sixtus. Use of unmodified orange peel for the adsorption of Cd(II), Pb(II) and Hg(II) ions in aqueous solutions. Am J Phys Chem. 2015;4(3):21-29. doi: 10.11648/j.ajpc.20150403.11

Copy | Download

@article{10.11648/j.ajpc.20150403.11,
  author = {Egwuatu Chinyelu and Umedum Ngozi and Ochiagha Kate and Ogbugo Sixtus},
  title = {Use of unmodified orange peel for the adsorption of Cd(II), Pb(II) and Hg(II) ions in aqueous solutions},
  journal = {American Journal of Physical Chemistry},
  volume = {4},
  number = {3},
  pages = {21-29},
  doi = {10.11648/j.ajpc.20150403.11},
  url = {https://doi.org/10.11648/j.ajpc.20150403.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajpc.20150403.11},
  abstract = {Ground orange peel (GOP) was used as adsorbent for Cd(II), Pb(II) and Hg(II) ions in aqueous solutions. Several experiments with variation of some factors namely: initial concentration of the heavy metal ions, contact time, temperature and pH were carried out. FT-IR spectrum of GOP showed the presence of different functional groups on its surface.  Equilibrium data were analysed by Langmuir, Freundlich, and Temkin isotherms. Hg (II) and Cd (II) adsorptions were better described by Temkin isotherm while that of Pub (II) was best described Freundlich isotherm. Pseudo second order kinetics with higher R2 values described adsorption in all cases. Adsorption of Hg (II) was maximum at pH 4, while those of Cd (II) and Pub (II) ions were maximum at pH 6. Thermodynamics study showed that the adsorption processes of Pb(II) and Hg(II) ions were  endothermic while that of Cd(II) ions was exothermic in nature.},
 year = {2015}
}

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TY  - JOUR
T1  - Use of unmodified orange peel for the adsorption of Cd(II), Pb(II) and Hg(II) ions in aqueous solutions
AU  - Egwuatu Chinyelu
AU  - Umedum Ngozi
AU  - Ochiagha Kate
AU  - Ogbugo Sixtus
Y1  - 2015/07/04
PY  - 2015
N1  - https://doi.org/10.11648/j.ajpc.20150403.11
DO  - 10.11648/j.ajpc.20150403.11
T2  - American Journal of Physical Chemistry
JF  - American Journal of Physical Chemistry
JO  - American Journal of Physical Chemistry
SP  - 21
EP  - 29
PB  - Science Publishing Group
SN  - 2327-2449
UR  - https://doi.org/10.11648/j.ajpc.20150403.11
AB  - Ground orange peel (GOP) was used as adsorbent for Cd(II), Pb(II) and Hg(II) ions in aqueous solutions. Several experiments with variation of some factors namely: initial concentration of the heavy metal ions, contact time, temperature and pH were carried out. FT-IR spectrum of GOP showed the presence of different functional groups on its surface.  Equilibrium data were analysed by Langmuir, Freundlich, and Temkin isotherms. Hg (II) and Cd (II) adsorptions were better described by Temkin isotherm while that of Pub (II) was best described Freundlich isotherm. Pseudo second order kinetics with higher R2 values described adsorption in all cases. Adsorption of Hg (II) was maximum at pH 4, while those of Cd (II) and Pub (II) ions were maximum at pH 6. Thermodynamics study showed that the adsorption processes of Pb(II) and Hg(II) ions were  endothermic while that of Cd(II) ions was exothermic in nature.
VL  - 4
IS  - 3
ER  -

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