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Catalytic Oxidation Process for the Degradation of Synthetic Dyes: An Overview

Author

Listed:
  • Rahat Javaid

    (Renewable Energy Research Center, Fukushima Renewable Energy Institute, National Institute of Advanced Industrial Science and Technology, AIST, 2-2-9 Machiikedai, Koriyama, Fukushima 963-0298, Japan)

  • Umair Yaqub Qazi

    (Chemistry Department, College of Science, University of Hafr Al Batin, P.O Box 1803 Hafr Al Batin 31991, Saudi Arabia)

Abstract

Dyes are used in various industries as coloring agents. The discharge of dyes, specifically synthetic dyes, in wastewater represents a serious environmental problem and causes public health concerns. The implementation of regulations for wastewater discharge has forced research towards either the development of new processes or the improvement of available techniques to attain efficient degradation of dyes. Catalytic oxidation is one of the advanced oxidation processes (AOPs), based on the active radicals produced during the reaction in the presence of a catalyst. This paper reviews the problems of dyes and hydroxyl radical-based oxidation processes, including Fenton’s process, non-iron metal catalysts, and the application of thin metal catalyst-coated tubular reactors in detail. In addition, the sulfate radical-based catalytic oxidation technique has also been described. This study also includes the effects of various operating parameters such as pH, temperature, the concentration of the oxidant, the initial concentration of dyes, and reaction time on the catalytic decomposition of dyes. Moreover, this paper analyzes the recent studies on catalytic oxidation processes. From the present study, it can be concluded that catalytic oxidation processes are very active and environmentally friendly methods for dye removal.

Suggested Citation

  • Rahat Javaid & Umair Yaqub Qazi, 2019. "Catalytic Oxidation Process for the Degradation of Synthetic Dyes: An Overview," IJERPH, MDPI, vol. 16(11), pages 1-27, June.
    • Handle: RePEc:gam:jijerp:v:16:y:2019:i:11:p:2066-:d:238979
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    References listed on IDEAS

    as
    1. Bo Yang & Yingying Gao & Dengming Yan & Hui Xu & Junfeng Wang, 2018. "Degradation Characteristics of Color Index Direct Blue 15 Dye Using Iron-Carbon Micro-Electrolysis Coupled with H 2 O 2," IJERPH, MDPI, vol. 15(7), pages 1-13, July.
    2. Sina Matavos-Aramyan & Mohsen Moussavi, 2017. "Advances in Fenton and Fenton Based Oxidation Processes for Industrial Effluent Contaminants Control-A Review," International Journal of Environmental Sciences & Natural Resources, Juniper Publishers Inc., vol. 2(4), pages 115-132, June.
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    Cited by:

    1. Umair Yaqub Qazi & Rahat Javaid, 2023. "Graphene Utilization for Efficient Energy Storage and Potential Applications: Challenges and Future Implementations," Energies, MDPI, vol. 16(6), pages 1-21, March.

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