Fabrication, functionalization and performance of doped photocatalysts for dye degradation and mineralization: a review

Ackmez Mudhoo*, Sonam Paliya, Prittam Goswami, Mukesh Singh, Giusy Lofrano, Maurizio Carotenuto, Federica Carraturo, Giovanni Libralato, Marco Guida, Muhammad Usman, Sunil Kumar

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

23 Citations (Scopus)

Abstract

Textile wastewaters contain refractory dyes that cause pollution and socio-economic issues, thus calling for efficient remediation techniques such as photocatalysis. We review the fabrication, functionalization, performance and limitations of doped catalysts for degrading and mineralizing dyes. We present developments in photocatalyst immobilization and photocatalytic reactor design. Methods such as microwave irradiation, sonication and use of ionic liquids are emerging for the preparation of doped photocatalysts. Whilst single-dye systems have been extensively studied, there is limited knowledge on multiple-dye systems. Immobilization of photocatalysts is gaining popularity for large-scale application, but faces issues of erosion, corrosion, mechanical strength and structure integrity. Ecotoxicological studies are required in real environments to validate the potential applications of nanostructured doped photocatalysts.

Original languageEnglish
Pages (from-to)1825-1903
Number of pages79
JournalEnvironmental Chemistry Letters
Volume18
Issue number6
DOIs
Publication statusPublished - Nov 1 2020

Keywords

  • Composites
  • Doping
  • Dye
  • Ecotoxicity
  • Photocatalytic degradation
  • Reactor design
  • Scalability

ASJC Scopus subject areas

  • Environmental Chemistry

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