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Investigating the effectiveness of UV, PAC, UV H2O2 and UV Na2S2O8 processes in removing malachite green (MG) dye from aquatic environments

  • Helia Gholizadeh , Sama Hosseini , Abdollah Dargahi EMAIL logo , Mehdi Vosoughi EMAIL logo and S. Ahmad Mokhtari
Published/Copyright: June 5, 2025
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International Journal of Chemical Reactor Engineering
From the journal International Journal of Chemical Reactor Engineering Volume 23 Issue 4

Abstract

Protecting water resources is vital for our future. Improved treatment methods can ensure safe and sustainable water for generations to come. With growing populations and climate change, efficient water management also boosts economic savings across industries. In this study, a one-factorial approach was employed to determine the optimal conditions for the removal of Malachite Green (MG) dye. Additionally, efforts were made to incorporate various processes to enhance performance after identifying the optimal conditions. The results obtained from the UV/PAC-Fe3O4/UV H2O2 processes were compared. In this research, analyses related to LC/MS, SEM, EDX, and kinetic plots were also reported to evaluate the performance of the processes. Findings indicated that the use of the nanocomposite and UV treatment achieved the highest efficiency in removing MG dye from aqueous solutions (74 %). Furthermore, the simultaneous application of these two processes can reduce the required time for the treatment. Additionally, results from LC/MS demonstrated that the compounds generated from this process ultimately convert into carbon dioxide and water molecules. The kinetics associated with this process were determined to be pseudo-first-order, with the highest R2 value (0.9691). Among the various methods evaluated, the final process, UV/PAC-Na2S2O8/UV/H2O2 demonstrated the highest removal efficiency and may be considered a promising approach for application in the textile industry.

Keywords: malachite green; degradation; nanocomposite; aquatic environments
Corresponding author: Abdollah Dargahi, Social Determinants of Health Research Center, Ardabil University of Medical Sciences, Ardabil, Iran; and Department of Environmental Health, Khalkhal University of Medical Sciences, Khalkhal, Iran, E-mail: ; and Mehdi Vosoughi, Social Determinants of Health Research Center, Ardabil University of M1edical Sciences, Ardabil, Iran; and Department of Environmental Health Engineering, Faculty of Public Health, Ardabil University of Medical Sciences, Ardabil, Iran, E-mail:

Funding source: Ardabil University of Medical Sciences

Award Identifier / Grant number: IR.ARUMS.REC.1401.118

  1. Research ethics: The research ethics and research integrity has been followed by all the authors.

  2. Informed consent: Not applicable.

  3. Author contributions: All authors have accepted responsibility for the entire content of this manuscript and approved its submission. Helia Gholizadeh and Sama Hosseini: Investigation, Writing-original draft, Visualization. Abdollah Dargahi, Mehdi Vosoughi: Investigation, Software, Validation, Writing – review & editing. Ahmad Mokhtari, Abdollah Dargahi, MehdiVosoughi: Conceptualization, Funding acquisition, Supervision.

  4. Use of Large Language Models, AI and Machine Learning Tools: None declared.

  5. Conflict of interest: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

  6. Research funding: Ardabil University of Medical Sciences (IR.ARUMS.REC.1401.118).

  7. Data availability: Data will be made available on request.

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Received: 2024-12-24
Accepted: 2025-05-14
Published Online: 2025-06-05

© 2025 Walter de Gruyter GmbH, Berlin/Boston

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https://doi.org/10.1515/ijcre-2024-0247
Keywords for this article
malachite green; degradation; nanocomposite; aquatic environments

Articles in the same Issue

  1. Frontmatter
  2. Review
  3. A critical review on pyrolysis and integration strategies for medical plastic waste
  4. Articles
  5. Enhancing batch reactor temperature control: a hybrid PID-MPC approach for magnesium stearate production from palm stearin
  6. A novel naphthalene-pyridine Schiff base sensor for highly selective colorimetric detection of Fe2+, Fe3+, and Cu2+ ions
  7. Deposition of vanadium-doped black TiO2 nanoparticles on glass beads to enable the degradation of methylene blue under visible light
  8. Enhanced photo-fenton-like degradation of Orange II using iron-rich natural clay and oxalic acid under UVA-Vis irradiation
  9. Treatment of slaughterhouse wastewater using waste derived biochar: experiment and modelling
  10. Chemical kinetic analysis of H2–NH3 addition on premixed natural gas flame at elevated pressures
  11. The nonideal mixing effect on the selectivity dynamic of consecutive-parallel reactions in an isothermal continuous stirred tank reactor based on Cholette’s model
  12. Investigating the effectiveness of UV, PAC, UV H2O2 and UV Na2S2O8 processes in removing malachite green (MG) dye from aquatic environments
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