American Journal of Physical Chemistry

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Evaluation of Adsorption Capacity of Methylene Blue in Aqueous Medium by Two Adsorbents: The Raw Hull of Lophira Lanceolata and Its Activated Carbon

Received: 20 September 2017    Accepted: 30 September 2017    Published: 10 November 2017
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Abstract

The purpose of this study is to evaluate the adsorption capacity of two adsorbents from the lignocellulosic residues of Lophira Lanceolata. The raw hull of Lophira Lanceolata and its activated carbon produced by chemical activation with orthophosphoric acid (H3PO4) at 50% (Vacid/Vwater) of the said hull. The ratio of impregnation to orthophosphoric acid used is 4.5. Activation and carbonization were carried out at 400°C. The physicochemical properties of the prepared activated carbon were determined and methylene blue adsorption tests were performed. On the basis of the results obtained, the iodine test revealed that the activated carbon produced had a microporosity of 646.81 mg/g, a density of 0.3156, a moisture content of less than 15% and ash content equal to 2%. Regarding the adsorption, results showed that methylene blue (100 ppm) adsorbed more easily on the activated carbon produced than on the crude residues with respective contact time of 10 minutes and 40 minutes. The removal rate was of the order of 100% for the activated carbon and of 83.56% for the raw hulls. Furthermore, an influence of the mass of the support, of the initial concentration and of the pH on the kinetics and on the adsorption capacity was observed. Kinetics obeyed to the pseudo-second order model; the diffusion was intra-particular and the Freundlich and Langmuir models satisfactorily described the adsorption of methylene blue respectively on the crude residues and on the produced activated carbon.

DOI 10.11648/j.ajpc.20170605.11
Published in American Journal of Physical Chemistry (Volume 6, Issue 5, October 2017)
Page(s) 76-87
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), 2024. Published by Science Publishing Group

Keywords

Adsorption, Activated Carbon, Lophira Lanceolata, Methylene Blue, Microporosity

References
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Author Information
  • Laboratory of Study and Research in Applied Chemistry (LERCA), Polytechnic School of Abomey-Calavi, University of Abomey-Calavi, Cotonou, Republic of Benin

  • Laboratory of Study and Research in Applied Chemistry (LERCA), Polytechnic School of Abomey-Calavi, University of Abomey-Calavi, Cotonou, Republic of Benin; National Water Company of Benin, Cotonou, Republic of Bénin

  • Laboratory of Study and Research in Applied Chemistry (LERCA), Polytechnic School of Abomey-Calavi, University of Abomey-Calavi, Cotonou, Republic of Benin

  • Laboratory of Study and Research in Applied Chemistry (LERCA), Polytechnic School of Abomey-Calavi, University of Abomey-Calavi, Cotonou, Republic of Benin

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    Elie Sogbochi, Clément Kolawolé Balogoun, Cocou Pascal Agbangnan Dossa, Dominique Codjo Koko Sohounhloue. (2017). Evaluation of Adsorption Capacity of Methylene Blue in Aqueous Medium by Two Adsorbents: The Raw Hull of Lophira Lanceolata and Its Activated Carbon. American Journal of Physical Chemistry, 6(5), 76-87. https://doi.org/10.11648/j.ajpc.20170605.11

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    ACS Style

    Elie Sogbochi; Clément Kolawolé Balogoun; Cocou Pascal Agbangnan Dossa; Dominique Codjo Koko Sohounhloue. Evaluation of Adsorption Capacity of Methylene Blue in Aqueous Medium by Two Adsorbents: The Raw Hull of Lophira Lanceolata and Its Activated Carbon. Am. J. Phys. Chem. 2017, 6(5), 76-87. doi: 10.11648/j.ajpc.20170605.11

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    AMA Style

    Elie Sogbochi, Clément Kolawolé Balogoun, Cocou Pascal Agbangnan Dossa, Dominique Codjo Koko Sohounhloue. Evaluation of Adsorption Capacity of Methylene Blue in Aqueous Medium by Two Adsorbents: The Raw Hull of Lophira Lanceolata and Its Activated Carbon. Am J Phys Chem. 2017;6(5):76-87. doi: 10.11648/j.ajpc.20170605.11

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  • @article{10.11648/j.ajpc.20170605.11,
      author = {Elie Sogbochi and Clément Kolawolé Balogoun and Cocou Pascal Agbangnan Dossa and Dominique Codjo Koko Sohounhloue},
      title = {Evaluation of Adsorption Capacity of Methylene Blue in Aqueous Medium by Two Adsorbents: The Raw Hull of Lophira Lanceolata and Its Activated Carbon},
      journal = {American Journal of Physical Chemistry},
      volume = {6},
      number = {5},
      pages = {76-87},
      doi = {10.11648/j.ajpc.20170605.11},
      url = {https://doi.org/10.11648/j.ajpc.20170605.11},
      eprint = {https://download.sciencepg.com/pdf/10.11648.j.ajpc.20170605.11},
      abstract = {The purpose of this study is to evaluate the adsorption capacity of two adsorbents from the lignocellulosic residues of Lophira Lanceolata. The raw hull of Lophira Lanceolata and its activated carbon produced by chemical activation with orthophosphoric acid (H3PO4) at 50% (Vacid/Vwater) of the said hull. The ratio of impregnation to orthophosphoric acid used is 4.5. Activation and carbonization were carried out at 400°C. The physicochemical properties of the prepared activated carbon were determined and methylene blue adsorption tests were performed. On the basis of the results obtained, the iodine test revealed that the activated carbon produced had a microporosity of 646.81 mg/g, a density of 0.3156, a moisture content of less than 15% and ash content equal to 2%. Regarding the adsorption, results showed that methylene blue (100 ppm) adsorbed more easily on the activated carbon produced than on the crude residues with respective contact time of 10 minutes and 40 minutes. The removal rate was of the order of 100% for the activated carbon and of 83.56% for the raw hulls. Furthermore, an influence of the mass of the support, of the initial concentration and of the pH on the kinetics and on the adsorption capacity was observed. Kinetics obeyed to the pseudo-second order model; the diffusion was intra-particular and the Freundlich and Langmuir models satisfactorily described the adsorption of methylene blue respectively on the crude residues and on the produced activated carbon.},
     year = {2017}
    }
    

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  • TY  - JOUR
    T1  - Evaluation of Adsorption Capacity of Methylene Blue in Aqueous Medium by Two Adsorbents: The Raw Hull of Lophira Lanceolata and Its Activated Carbon
    AU  - Elie Sogbochi
    AU  - Clément Kolawolé Balogoun
    AU  - Cocou Pascal Agbangnan Dossa
    AU  - Dominique Codjo Koko Sohounhloue
    Y1  - 2017/11/10
    PY  - 2017
    N1  - https://doi.org/10.11648/j.ajpc.20170605.11
    DO  - 10.11648/j.ajpc.20170605.11
    T2  - American Journal of Physical Chemistry
    JF  - American Journal of Physical Chemistry
    JO  - American Journal of Physical Chemistry
    SP  - 76
    EP  - 87
    PB  - Science Publishing Group
    SN  - 2327-2449
    UR  - https://doi.org/10.11648/j.ajpc.20170605.11
    AB  - The purpose of this study is to evaluate the adsorption capacity of two adsorbents from the lignocellulosic residues of Lophira Lanceolata. The raw hull of Lophira Lanceolata and its activated carbon produced by chemical activation with orthophosphoric acid (H3PO4) at 50% (Vacid/Vwater) of the said hull. The ratio of impregnation to orthophosphoric acid used is 4.5. Activation and carbonization were carried out at 400°C. The physicochemical properties of the prepared activated carbon were determined and methylene blue adsorption tests were performed. On the basis of the results obtained, the iodine test revealed that the activated carbon produced had a microporosity of 646.81 mg/g, a density of 0.3156, a moisture content of less than 15% and ash content equal to 2%. Regarding the adsorption, results showed that methylene blue (100 ppm) adsorbed more easily on the activated carbon produced than on the crude residues with respective contact time of 10 minutes and 40 minutes. The removal rate was of the order of 100% for the activated carbon and of 83.56% for the raw hulls. Furthermore, an influence of the mass of the support, of the initial concentration and of the pH on the kinetics and on the adsorption capacity was observed. Kinetics obeyed to the pseudo-second order model; the diffusion was intra-particular and the Freundlich and Langmuir models satisfactorily described the adsorption of methylene blue respectively on the crude residues and on the produced activated carbon.
    VL  - 6
    IS  - 5
    ER  - 

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