The relationship between local structure and photo-Fenton catalytic ability of glasses and glass-ceramics prepared from Japanese slag

Ahmed S. Ali, Kiyoshi Nomura, Z. Homonnay, E. Kuzmann, Alex Scrimshire, Paul A. Bingham, Stjepko Krehula, Mira Ristić, Svetozar Musić, Shiro Kubuki

Research output: Contribution to journalArticle

Abstract

Local structure and the photo-Fenton reactivity of iron-containing glasses and glass-ceramics prepared from Japanese domestic waste slag were investigated. The largest rate constant (k) of (2.8 ± 0.08) × 10−2 min−1 was recorded for the methylene blue degradation test by using H2O2 with a heat-treated ‘model slag’. The 57Fe Mössbauer spectrum was composed of a paramagnetic doublet with isomer shift of 0.18 ± 0.01 mm s−1 attributed to distorted FeIIIO4 tetrahedra. These results indicate that the paramagnetic Fe3+ provided strong photo-Fenton catalytic ability, and that waste slag can thus be recycled as an effective visible-light activated photocatalyst.

Original languageEnglish
JournalJournal of Radioanalytical and Nuclear Chemistry
DOIs
Publication statusAccepted/In press - Jan 1 2019

    Fingerprint

Keywords

  • Fe-Mössbauer spectroscopy
  • Domestic waste slag
  • Iron oxide
  • Methylene blue
  • Photo-Fenton reaction
  • 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

Cite this