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Synthesis and Sorption Studies of Lead (II) on Zn/Fe Layered Double Hydroxide

Received: 22 April 2015     Accepted: 27 April 2015     Published: 11 May 2015
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Abstract

Zn/Fe-CO3 layered double hydroxide was synthesis by co-precipitation method for the adsorption of lead ions in aqueous solution. The synthesized layered double hydroxide (Zn/Fe-CO3) was then characterized by Powder X-ray Diffraction (PXRD), Fourier Transform Infrared (FT-IR) and SEM/EDX analysis. The experimental data fitted both Langmuir and Freundlich isotherms with regression correlation coefficient values of 0.9999 and 0.999 respectively. The essential thermodynamic parameters of Ho, So, Hx and Eawere calculated to be -4.8327KJ/mol, 12.8J/molK, 13.3KJ/mol and -1.948KJ/mol, thus showing the exothermic nature of the process and the randomness of the system. The low activation energy (Ea) value is consistent with physical adsorption. The results also fitted zero-order kinetic, first-order kinetic and pseudo-second order models.

Published in American Journal of Applied Chemistry (Volume 3, Issue 3)
DOI 10.11648/j.ajac.20150303.15
Page(s) 124-133
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

Thermodynamics, Freundlich Isotherm, Kinetics, Layered Double Hydroxide, Langmuir Isotherm

References
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  • APA Style

    Ayawei N., Inengite A. K., Wankasi D., Dikio E. D. (2015). Synthesis and Sorption Studies of Lead (II) on Zn/Fe Layered Double Hydroxide. American Journal of Applied Chemistry, 3(3), 124-133. https://doi.org/10.11648/j.ajac.20150303.15

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    ACS Style

    Ayawei N.; Inengite A. K.; Wankasi D.; Dikio E. D. Synthesis and Sorption Studies of Lead (II) on Zn/Fe Layered Double Hydroxide. Am. J. Appl. Chem. 2015, 3(3), 124-133. doi: 10.11648/j.ajac.20150303.15

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    AMA Style

    Ayawei N., Inengite A. K., Wankasi D., Dikio E. D. Synthesis and Sorption Studies of Lead (II) on Zn/Fe Layered Double Hydroxide. Am J Appl Chem. 2015;3(3):124-133. doi: 10.11648/j.ajac.20150303.15

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  • @article{10.11648/j.ajac.20150303.15,
      author = {Ayawei N. and Inengite A. K. and Wankasi D. and Dikio E. D.},
      title = {Synthesis and Sorption Studies of Lead (II) on Zn/Fe Layered Double Hydroxide},
      journal = {American Journal of Applied Chemistry},
      volume = {3},
      number = {3},
      pages = {124-133},
      doi = {10.11648/j.ajac.20150303.15},
      url = {https://doi.org/10.11648/j.ajac.20150303.15},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajac.20150303.15},
      abstract = {Zn/Fe-CO3 layered double hydroxide was synthesis by co-precipitation method for the adsorption of lead ions in aqueous solution. The synthesized layered double hydroxide (Zn/Fe-CO3) was then characterized by Powder X-ray Diffraction (PXRD), Fourier Transform Infrared (FT-IR) and SEM/EDX analysis. The experimental data fitted both Langmuir and Freundlich isotherms with regression correlation coefficient values of 0.9999 and 0.999 respectively. The essential thermodynamic parameters of Ho, So, Hx and Eawere calculated to be -4.8327KJ/mol, 12.8J/molK, 13.3KJ/mol and -1.948KJ/mol, thus showing the exothermic nature of the process and the randomness of the system. The low activation energy (Ea) value is consistent with physical adsorption. The results also fitted zero-order kinetic, first-order kinetic and pseudo-second order models.},
     year = {2015}
    }
    

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  • TY  - JOUR
    T1  - Synthesis and Sorption Studies of Lead (II) on Zn/Fe Layered Double Hydroxide
    AU  - Ayawei N.
    AU  - Inengite A. K.
    AU  - Wankasi D.
    AU  - Dikio E. D.
    Y1  - 2015/05/11
    PY  - 2015
    N1  - https://doi.org/10.11648/j.ajac.20150303.15
    DO  - 10.11648/j.ajac.20150303.15
    T2  - American Journal of Applied Chemistry
    JF  - American Journal of Applied Chemistry
    JO  - American Journal of Applied Chemistry
    SP  - 124
    EP  - 133
    PB  - Science Publishing Group
    SN  - 2330-8745
    UR  - https://doi.org/10.11648/j.ajac.20150303.15
    AB  - Zn/Fe-CO3 layered double hydroxide was synthesis by co-precipitation method for the adsorption of lead ions in aqueous solution. The synthesized layered double hydroxide (Zn/Fe-CO3) was then characterized by Powder X-ray Diffraction (PXRD), Fourier Transform Infrared (FT-IR) and SEM/EDX analysis. The experimental data fitted both Langmuir and Freundlich isotherms with regression correlation coefficient values of 0.9999 and 0.999 respectively. The essential thermodynamic parameters of Ho, So, Hx and Eawere calculated to be -4.8327KJ/mol, 12.8J/molK, 13.3KJ/mol and -1.948KJ/mol, thus showing the exothermic nature of the process and the randomness of the system. The low activation energy (Ea) value is consistent with physical adsorption. The results also fitted zero-order kinetic, first-order kinetic and pseudo-second order models.
    VL  - 3
    IS  - 3
    ER  - 

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Author Information
  • Department of Chemical Sciences, Niger Delta University, Wilberforce Island, Bayelsa State, Nigeria

  • Department of Chemical Sciences, Niger Delta University, Wilberforce Island, Bayelsa State, Nigeria

  • Department of Chemical Sciences, Niger Delta University, Wilberforce Island, Bayelsa State, Nigeria

  • Department of Chemical Sciences, Niger Delta University, Wilberforce Island, Bayelsa State, Nigeria

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