Construction of BiOF/BiOI nanocomposites with tunable band gaps as efficient visible-light photocatalysts

Ahmed Alzamly, Maram Bakiro, Salwa Hussein Ahmed, Sundus M. Sallabi, Ruba Abdullah Al Ajeil, Shadha Ahmed Alawadhi, Huda Ahmed Selem, Shamma Saleh Mubarak Al Meshayei, Abbas Khaleel, Noura Al-Shamsi, Na'il Saleh

Research output: Contribution to journalArticlepeer-review

35 Citations (Scopus)


A series of BiOF/BiOI heterojunction composites photocatalysts has been prepared via a simple coprecipitation method and characterized by using UV–vis (UV–vis) diffuse reflectance spectroscopy (DRS), powder X-ray diffraction (PXRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), Brunauer-Emmett-Teller for determination of the specific surface area and porosity (BET), high resolution transmission electron microscopy (HRTEM) and photoluminescence (PL). The enhanced photocatalytic activity for removal of the pharmaceutical compound Diclofenac Potassium commercially available as Voltfast sachets under visible light irradiation was demonstrated by comparing heterojunction prepared composites photocatalysts with that of pure BiOF and BiOI photocatalysts prepared under the same conditions. Based on the experimental conditions, the highest activity was achieved for the composite contains 40% BiOF and 60% BiOI showing comparable activities to that of pure BiOI. To the best of our knowledge, this study is the first to report the preparation of BiOF/BiOI composites photocatalysts and their use in the photocatalytic removal of Diclofenac Potassium from aqueous solution.

Original languageEnglish
Pages (from-to)30-39
Number of pages10
JournalJournal of Photochemistry and Photobiology A: Chemistry
Publication statusPublished - Apr 15 2019


  • BiOF/BiOI composites
  • Diclofenac potassium
  • Heterojunction
  • Photocatalysts
  • Visible light

ASJC Scopus subject areas

  • General Chemistry
  • General Chemical Engineering
  • General Physics and Astronomy


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