Nickel ferrite nanoenabled graphene oxide (NiFe2O4@GO) as photoactive nanocomposites for water treatment

Allen Rhay B. Bayantong, Yu Jen Shih, Cheng Di Dong, Sergi Garcia-Segura, Mark Daniel G. de Luna

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Nanocomposite materials can enhance the capabilities of water treatment processes such as photocatalysis. In this work, novel light-driven nanocatalysts were synthesized by using nickel ferrite (NiFe2O4) to nanoenable graphene oxide (GO) substrates. GO is an emerging 2D nanomaterial with high conductivity and adsorption properties. Moreover, the electric properties of GO improve photocatalytic performance by promoting charge carrier separation. Results of the characterization of the nickel ferrite nanoenabled graphene oxide (NiFe2O4@GO) nanocomposites demonstrate that homogeneous and stable photocatalysts were produced. The as-synthesized nanocatalysts enabled complete decolorization of the colored water matrix in short irradiation times of 150 min using minimal catalyst loading at 0.5 g L−1. The selective hook and destroy mechanism reduced the competitive effect of co-existing ions in solution. Furthermore, the use of specific scavengers helped to elucidate the degradation mechanisms of organic dye methylene blue by NiFe2O4@GO nanocomposites.

Original languageEnglish (US)
Pages (from-to)5472-5481
Number of pages10
JournalEnvironmental Science and Pollution Research
Volume28
Issue number5
DOIs
StatePublished - Feb 2021

Keywords

  • Advanced oxidation process
  • Graphene nanocomposite
  • Photocatalysis
  • UV irradiation
  • Wastewater treatment

ASJC Scopus subject areas

  • Environmental Chemistry
  • Pollution
  • Health, Toxicology and Mutagenesis

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