Low power photo-assisted catalytic degradation of azo dyes using 1-D BiOI: Optimization of the key physicochemical features

Marzieh Nourzad, Aliakbar Dehghan, Zohreh Niazi, Dimitrios A. Giannakoudakis*, Mojtaba Afsharnia, Mariusz Barczak, Ioannis Anastopoulos, Konstantinos S. Triantafyllidis, Mahmoud Shams

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Flower-like spherical 1-D-BiOI nanoparticles were solvothermally synthesized and evaluated for the photocatalytic degradation of the azo dyes Methyl Orange (MO), Methylene Blue (MB), and Eriochrome Black-T (EBT) using ultra-low-power LED light. The soft white-light bulb positively affected the photo-assisted remediation efficiency. The tests showed that 1-D-BiOI removal efficiency against 12 mg/L dyes MO, MB, and EBT were 47.4, 66.1, and 86.7%, respectively. The optimum experimental parameters were determined by modeling and optimization using RSM. Scavenging tests indicated that •OH are the main responsible species. COD was increased initially during light irradiation and then decreased by dye mineralization.

Original languageEnglish
Article number106567
JournalCatalysis Communications
Volume174
DOIs
StatePublished - Jan 2023
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2022 The Authors

Keywords

  • 1-D BiOI
  • Azo dye
  • Bismuth oxy‑iodine nanomaterials
  • Low power LED
  • Photocatalytic water treatment

ASJC Scopus subject areas

  • Catalysis
  • General Chemistry
  • Process Chemistry and Technology

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