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Evaluation of Layered Double Hydroxide Synthesised from a Green Biogenic Precursor for Phosphate Removal: Characterisations and Isotherms

Received: 8 February 2017     Accepted: 13 March 2017     Published: 22 March 2017
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Abstract

CaCr LDH materials were synthesized by the co-precipitation method, using Gastropod shell as a biogenic source of Ca2+. The mineralogical, surficial morphology and elemental composition analysis of the materials showed characteristics typical of hydrotalcite-like materials, composed of Ca, Cr, O, C and Cl. Batch equilibrium adsorption studies showed that phosphate sorption on the LDH reached equilibrium within 5 min with about 98% removal. The sorption of phosphate was well described by the Langmuir isotherm model. The monolayer adsorption capacity of the CaCr LDH for phosphate was 142.86 mg/g. Mechanistic studies of phosphate removal by the LDHs was elucidated via instrumental analysis, vis-a viz, SEM-EDX, XRD and FTIR. Results revealed that phosphate was removed via the combination of ion exchange and precipitation. It could be inferred that CaCr LDH synthesised using Gastropod shell as a biogenic source of Ca2+ is a suitable adsorbent for phosphate removal from aqua system.

Published in American Journal of BioScience (Volume 5, Issue 2)
DOI 10.11648/j.ajbio.20170502.11
Page(s) 13-24
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), 2017. Published by Science Publishing Group

Keywords

Phosphate, Layered Double Hydroxide, Characterisation, Gastropod Shell, Isotherms

References
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Cite This Article
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    Ruth Olubukola Ajoke Adelagun, Nurudeen Abiola Oladoja, Isaac Ayodele Ololade, Adeniyi Samson Adeyemo. (2017). Evaluation of Layered Double Hydroxide Synthesised from a Green Biogenic Precursor for Phosphate Removal: Characterisations and Isotherms. American Journal of BioScience, 5(2), 13-24. https://doi.org/10.11648/j.ajbio.20170502.11

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    ACS Style

    Ruth Olubukola Ajoke Adelagun; Nurudeen Abiola Oladoja; Isaac Ayodele Ololade; Adeniyi Samson Adeyemo. Evaluation of Layered Double Hydroxide Synthesised from a Green Biogenic Precursor for Phosphate Removal: Characterisations and Isotherms. Am. J. BioScience 2017, 5(2), 13-24. doi: 10.11648/j.ajbio.20170502.11

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    AMA Style

    Ruth Olubukola Ajoke Adelagun, Nurudeen Abiola Oladoja, Isaac Ayodele Ololade, Adeniyi Samson Adeyemo. Evaluation of Layered Double Hydroxide Synthesised from a Green Biogenic Precursor for Phosphate Removal: Characterisations and Isotherms. Am J BioScience. 2017;5(2):13-24. doi: 10.11648/j.ajbio.20170502.11

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  • @article{10.11648/j.ajbio.20170502.11,
      author = {Ruth Olubukola Ajoke Adelagun and Nurudeen Abiola Oladoja and Isaac Ayodele Ololade and Adeniyi Samson Adeyemo},
      title = {Evaluation of Layered Double Hydroxide Synthesised from a Green Biogenic Precursor for Phosphate Removal: Characterisations and Isotherms},
      journal = {American Journal of BioScience},
      volume = {5},
      number = {2},
      pages = {13-24},
      doi = {10.11648/j.ajbio.20170502.11},
      url = {https://doi.org/10.11648/j.ajbio.20170502.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajbio.20170502.11},
      abstract = {CaCr LDH materials were synthesized by the co-precipitation method, using Gastropod shell as a biogenic source of Ca2+. The mineralogical, surficial morphology and elemental composition analysis of the materials showed characteristics typical of hydrotalcite-like materials, composed of Ca, Cr, O, C and Cl. Batch equilibrium adsorption studies showed that phosphate sorption on the LDH reached equilibrium within 5 min with about 98% removal. The sorption of phosphate was well described by the Langmuir isotherm model. The monolayer adsorption capacity of the CaCr LDH for phosphate was 142.86 mg/g. Mechanistic studies of phosphate removal by the LDHs was elucidated via instrumental analysis, vis-a viz, SEM-EDX, XRD and FTIR. Results revealed that phosphate was removed via the combination of ion exchange and precipitation. It could be inferred that CaCr LDH synthesised using Gastropod shell as a biogenic source of Ca2+ is a suitable adsorbent for phosphate removal from aqua system.},
     year = {2017}
    }
    

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  • TY  - JOUR
    T1  - Evaluation of Layered Double Hydroxide Synthesised from a Green Biogenic Precursor for Phosphate Removal: Characterisations and Isotherms
    AU  - Ruth Olubukola Ajoke Adelagun
    AU  - Nurudeen Abiola Oladoja
    AU  - Isaac Ayodele Ololade
    AU  - Adeniyi Samson Adeyemo
    Y1  - 2017/03/22
    PY  - 2017
    N1  - https://doi.org/10.11648/j.ajbio.20170502.11
    DO  - 10.11648/j.ajbio.20170502.11
    T2  - American Journal of BioScience
    JF  - American Journal of BioScience
    JO  - American Journal of BioScience
    SP  - 13
    EP  - 24
    PB  - Science Publishing Group
    SN  - 2330-0167
    UR  - https://doi.org/10.11648/j.ajbio.20170502.11
    AB  - CaCr LDH materials were synthesized by the co-precipitation method, using Gastropod shell as a biogenic source of Ca2+. The mineralogical, surficial morphology and elemental composition analysis of the materials showed characteristics typical of hydrotalcite-like materials, composed of Ca, Cr, O, C and Cl. Batch equilibrium adsorption studies showed that phosphate sorption on the LDH reached equilibrium within 5 min with about 98% removal. The sorption of phosphate was well described by the Langmuir isotherm model. The monolayer adsorption capacity of the CaCr LDH for phosphate was 142.86 mg/g. Mechanistic studies of phosphate removal by the LDHs was elucidated via instrumental analysis, vis-a viz, SEM-EDX, XRD and FTIR. Results revealed that phosphate was removed via the combination of ion exchange and precipitation. It could be inferred that CaCr LDH synthesised using Gastropod shell as a biogenic source of Ca2+ is a suitable adsorbent for phosphate removal from aqua system.
    VL  - 5
    IS  - 2
    ER  - 

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Author Information
  • Department of Chemical Sciences, Federal University Wukari, Wukari, Nigeria

  • Department of Chemical Sciences, Adekunle Ajasin University, Akungba - Akoko, Ondo, Nigeria

  • Department of Chemical Sciences, Adekunle Ajasin University, Akungba - Akoko, Ondo, Nigeria

  • Department of Chemical Sciences, Adekunle Ajasin University, Akungba - Akoko, Ondo, Nigeria

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