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Kinetic Evaluation of Dye Decolorization by Fenton Processes in the Presence of 3-Hydroxyanthranilic Acid

Author

Listed:
  • Cássia Sidney Santana

    (Campus Alto Paraopeba, Universidade Federal de São João Del-Rei, Ouro Branco 36420-000, MG, Brazil)

  • Márcio Daniel Nicodemos Ramos

    (Instituto de Recursos Naturais, Universidade Federal de Itajubá, Itajubá 37500-903, MG, Brazil)

  • Camila Cristina Vieira Velloso

    (Campus Alto Paraopeba, Universidade Federal de São João Del-Rei, Ouro Branco 36420-000, MG, Brazil)

  • André Aguiar

    (Instituto de Recursos Naturais, Universidade Federal de Itajubá, Itajubá 37500-903, MG, Brazil)

Abstract

The fungal metabolite 3-hydroxyanthranilic acid (3-HAA) was used as a redox mediator with the aim of increasing dye degradation by Fenton oxidative processes (Fe 2+ /H 2 O 2 , Fe 3+ /H 2 O 2 ). Its Fe 3+ -reducing activity can enhance the generation of reactive oxygen species as HO ● radicals. Initially, the influence of 3-HAA on decolorization kinetics of five dyes (methylene blue, chromotrope 2R, methyl orange, phenol red, and safranin T) was investigated using decolorization data from a previous work conducted by the present research group. Fe 3+ -containing reaction data were well fitted with first-order and mainly second-order kinetic models, whereas the BMG (Behnajady, Modirshahla and Ghanbary) model obtained optimal fit to Fe 2+ . Improvements in kinetic parameters (i.e., apparent rate constants and maximum oxidation capacity) were observed with the addition of 3-HAA. In another set of experiments, a decrease in apparent activation energy was observed due to introducing 3-HAA into reactions containing either Fe 2+ or Fe 3+ in order to decolorize phenol red at different temperatures. This indicates that the redox mediator decreases the energy barrier so as to allow reactions to occur. Thus, based on recent experiments and the reaction kinetics models evaluated herein, pro-oxidant properties have been observed for 3-HAA in Fenton processes.

Suggested Citation

  • Cássia Sidney Santana & Márcio Daniel Nicodemos Ramos & Camila Cristina Vieira Velloso & André Aguiar, 2019. "Kinetic Evaluation of Dye Decolorization by Fenton Processes in the Presence of 3-Hydroxyanthranilic Acid," IJERPH, MDPI, vol. 16(9), pages 1-16, May.
    • Handle: RePEc:gam:jijerp:v:16:y:2019:i:9:p:1602-:d:229060
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    References listed on IDEAS

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    1. Zacharias Frontistis, 2018. "Degradation of the Nonsteroidal Anti-Inflammatory Drug Piroxicam by Iron Activated Persulfate: The Role of Water Matrix and Ultrasound Synergy," IJERPH, MDPI, vol. 15(11), pages 1-16, November.
    2. Francesca Audino & Jorge Mario Toro Santamaria & Luis J. del Valle Mendoza & Moisès Graells & Montserrat Pérez-Moya, 2019. "Removal of Paracetamol Using Effective Advanced Oxidation Processes," IJERPH, MDPI, vol. 16(3), pages 1-17, February.
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    Cited by:

    1. Apichon Watcharenwong & Kawintra Kongka & Anusara Kaeokan & Chanat Chokejaroenrat & Chainarong Sakulthaew, 2023. "Decolorization of Melanoidin Using Sono–Fenton and Photo–Fenton Processes," Waste, MDPI, vol. 1(2), pages 1-13, May.

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