American Journal of Physical Chemistry

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Photodegradation of Methylene Blue in Fe2O3–Oxalate Suspension Under UV Light Irradiation

Received: 07 April 2018    Accepted: 23 April 2018    Published: 18 May 2018
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Abstract

The aim of this study was to investigate the photodegradation of organic pollutants in natural environment with co-existence of iron oxides and oxalic acid. Methylene Blue (MB) was selected as a model pollutant while Fe2O3 was selected as iron oxide. Commercial Fe2O3 was calcined at 300°C, 400°C and 500°C and was used to degrade MB in oxalate solutions of different concentration under UV radiation. Adsorption of MB on the surface of calcined Fe2O3 was studied and 30 minutes was required to reach the adsorption equilibrium. The effect of the initial concentration of oxalic acid, initial concentration of MB and calcined temperature of Fe2O3 on photodegradation of MB in the Fe2O3–oxalate suspension under UV light irradiation was investigated. Oxalic acid plays a very important role, no significant degradation of MB was found in absence of oxalic acid in the suspension. But excess concentration of oxalic acid decreases the degradation. Photodegradation of MB increases with increasing calcined temperature of Fe2O3 and decreases with increase in MB concentration. Since this process does not require the addition of hydrogen peroxide and shows good efficiency under UV irradiation, it is an economically viable method for pre-treating wastewater containing dye.

DOI 10.11648/j.ajpc.20180701.12
Published in American Journal of Physical Chemistry (Volume 7, Issue 1, March 2018)
Page(s) 6-11
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

Methylene Blue, Photodegradation, Fe2O3–Oxalate Suspension, Adsorption

References
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Author Information
  • Department of Chemistry, Faculty of Science, University of Dhaka, Dhaka, Bangladesh

  • Department of Chemistry, Faculty of Engineering, Dhaka University of Engineering & Technology, Gazipur, Bangladesh

  • Department of Chemistry, Faculty of Science, University of Dhaka, Dhaka, Bangladesh

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    A. Z. M. Mainul Islam Mazumder, Md. Sofiul Alom, Tajmeri S. A. Islam. (2018). Photodegradation of Methylene Blue in Fe2O3–Oxalate Suspension Under UV Light Irradiation. American Journal of Physical Chemistry, 7(1), 6-11. https://doi.org/10.11648/j.ajpc.20180701.12

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    A. Z. M. Mainul Islam Mazumder; Md. Sofiul Alom; Tajmeri S. A. Islam. Photodegradation of Methylene Blue in Fe2O3–Oxalate Suspension Under UV Light Irradiation. Am. J. Phys. Chem. 2018, 7(1), 6-11. doi: 10.11648/j.ajpc.20180701.12

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    AMA Style

    A. Z. M. Mainul Islam Mazumder, Md. Sofiul Alom, Tajmeri S. A. Islam. Photodegradation of Methylene Blue in Fe2O3–Oxalate Suspension Under UV Light Irradiation. Am J Phys Chem. 2018;7(1):6-11. doi: 10.11648/j.ajpc.20180701.12

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  • @article{10.11648/j.ajpc.20180701.12,
      author = {A. Z. M. Mainul Islam Mazumder and Md. Sofiul Alom and Tajmeri S. A. Islam},
      title = {Photodegradation of Methylene Blue in Fe2O3–Oxalate Suspension Under UV Light Irradiation},
      journal = {American Journal of Physical Chemistry},
      volume = {7},
      number = {1},
      pages = {6-11},
      doi = {10.11648/j.ajpc.20180701.12},
      url = {https://doi.org/10.11648/j.ajpc.20180701.12},
      eprint = {https://download.sciencepg.com/pdf/10.11648.j.ajpc.20180701.12},
      abstract = {The aim of this study was to investigate the photodegradation of organic pollutants in natural environment with co-existence of iron oxides and oxalic acid. Methylene Blue (MB) was selected as a model pollutant while Fe2O3 was selected as iron oxide. Commercial Fe2O3 was calcined at 300°C, 400°C and 500°C and was used to degrade MB in oxalate solutions of different concentration under UV radiation. Adsorption of MB on the surface of calcined Fe2O3 was studied and 30 minutes was required to reach the adsorption equilibrium. The effect of the initial concentration of oxalic acid, initial concentration of MB and calcined temperature of Fe2O3 on photodegradation of MB in the Fe2O3–oxalate suspension under UV light irradiation was investigated. Oxalic acid plays a very important role, no significant degradation of MB was found in absence of oxalic acid in the suspension. But excess concentration of oxalic acid decreases the degradation. Photodegradation of MB increases with increasing calcined temperature of Fe2O3 and decreases with increase in MB concentration. Since this process does not require the addition of hydrogen peroxide and shows good efficiency under UV irradiation, it is an economically viable method for pre-treating wastewater containing dye.},
     year = {2018}
    }
    

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  • TY  - JOUR
    T1  - Photodegradation of Methylene Blue in Fe2O3–Oxalate Suspension Under UV Light Irradiation
    AU  - A. Z. M. Mainul Islam Mazumder
    AU  - Md. Sofiul Alom
    AU  - Tajmeri S. A. Islam
    Y1  - 2018/05/18
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    DO  - 10.11648/j.ajpc.20180701.12
    T2  - American Journal of Physical Chemistry
    JF  - American Journal of Physical Chemistry
    JO  - American Journal of Physical Chemistry
    SP  - 6
    EP  - 11
    PB  - Science Publishing Group
    SN  - 2327-2449
    UR  - https://doi.org/10.11648/j.ajpc.20180701.12
    AB  - The aim of this study was to investigate the photodegradation of organic pollutants in natural environment with co-existence of iron oxides and oxalic acid. Methylene Blue (MB) was selected as a model pollutant while Fe2O3 was selected as iron oxide. Commercial Fe2O3 was calcined at 300°C, 400°C and 500°C and was used to degrade MB in oxalate solutions of different concentration under UV radiation. Adsorption of MB on the surface of calcined Fe2O3 was studied and 30 minutes was required to reach the adsorption equilibrium. The effect of the initial concentration of oxalic acid, initial concentration of MB and calcined temperature of Fe2O3 on photodegradation of MB in the Fe2O3–oxalate suspension under UV light irradiation was investigated. Oxalic acid plays a very important role, no significant degradation of MB was found in absence of oxalic acid in the suspension. But excess concentration of oxalic acid decreases the degradation. Photodegradation of MB increases with increasing calcined temperature of Fe2O3 and decreases with increase in MB concentration. Since this process does not require the addition of hydrogen peroxide and shows good efficiency under UV irradiation, it is an economically viable method for pre-treating wastewater containing dye.
    VL  - 7
    IS  - 1
    ER  - 

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