ZnO supported CoFe2O4 nanophotocatalysts for the mineralization of Direct Blue 71 in aqueous environments

Panneerselvam Sathishkumar, Nalenthiran Pugazhenthiran, Ramalinga Viswanathan Mangalaraja, Abdullah M. Asiri, Sambandam Anandan

Research output: Contribution to journalArticlepeer-review

80 Scopus citations

Abstract

In this study, an attempt was made to render both the magnetic and photocatalytic properties in a semiconductor material to enhance the efficiency of degradation and recycling possibility of magnetic nanophotocatalysts. CoFe2O4 and CoFe2O4 loaded ZnO nanoparticles were prepared by a simple co-precipitation method and characterized using various analytical tools and in addition to check its visible light assisted photocatalytic activity. CoFe2O4/ZnO nanocatalyst coupled with acceptor, peroxomonosulphate (PMS) showed 1.69-fold enhancement in Direct Blue 71 (triazo dye; DB71) mineralization within 5h. The accomplished enrichment in decolorization was due to the production of more number of non-selective and active free radicals at the catalyst surface.

Original languageEnglish
Pages (from-to)171-179
Number of pages9
JournalJournal of Hazardous Materials
Volume252-253
DOIs
StatePublished - 5 May 2013
Externally publishedYes

Keywords

  • CoFeO/ZnO nanocatalysts
  • Direct Blue 71
  • Peroxomonosulphate
  • Photocatalytic mineralization

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