Photo-Fenton degradation of methylene blue using hematite-enriched slag under visible light

Ahmed S. Ali, Irfan Khan, Bofan Zhang, Kiyoshi Nomura, Zoltan Homonnay, Erno Kuzmann, Alex Scrimshire, Paul A. Bingham, Stjepko Krehula, Svetozar Musić, Kazuhiko Akiyama, Shiro Kubuki

Research output: Contribution to journalArticle

Abstract

This study aims to find a suitable method to transform the amorphous iron oxides obtained from the incineration of combustible waste slag into hematite. The resulting samples were utilized as heterogeneous photocatalysts for the photo-Fenton degradation of methylene blue (MB) aqueous solution. A good correlation was found between the MB degradation and the amount of hematite phase as confirmed by XRD and Mössbauer measurements. The largest rate constant (k) was (4.1 ± 0.08) × 10−2 min−1 for MB decomposition under visible-light for the sample N5-50-800. The results are promising for both low-cost photocatalysts and recycling of combustible waste slags.

Original languageEnglish
JournalJournal of Radioanalytical and Nuclear Chemistry
DOIs
Publication statusAccepted/In press - Jan 1 2020

Keywords

  • Fe-Mössbauer spectroscopy
  • Hematite iron oxide
  • Photo-Fenton reaction
  • Slag
  • Visible-light activated photocatalytic effect

ASJC Scopus subject areas

  • Analytical Chemistry
  • Nuclear Energy and Engineering
  • Radiology Nuclear Medicine and imaging
  • Pollution
  • Spectroscopy
  • Public Health, Environmental and Occupational Health
  • Health, Toxicology and Mutagenesis

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  • Cite this

    Ali, A. S., Khan, I., Zhang, B., Nomura, K., Homonnay, Z., Kuzmann, E., Scrimshire, A., Bingham, P. A., Krehula, S., Musić, S., Akiyama, K., & Kubuki, S. (Accepted/In press). Photo-Fenton degradation of methylene blue using hematite-enriched slag under visible light. Journal of Radioanalytical and Nuclear Chemistry. https://doi.org/10.1007/s10967-020-07238-x