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ZnO/Ag/CdO nanocomposite for visible light-induced photocatalytic degradation of industrial textile effluents

  • R. Saravanan*
  • , M. Mansoob Khan
  • , Vinod Kumar Gupta
  • , E. Mosquera
  • , F. Gracia
  • , V. Narayanan
  • , A. Stephen
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

620 Scopus citations

Abstract

A ternary ZnO/Ag/CdO nanocomposite was synthesized using thermal decomposition method. The resulting nanocomposite was characterized by X-ray diffraction, field emission scanning electron microscopy, transmission electron microscopy, UV-Vis spectroscopy, and X-ray photoelectron spectroscopy. The ZnO/Ag/CdO nanocomposite exhibited enhanced photocatalytic activity under visible light irradiation for the degradation of methyl orange and methylene blue compared with binary ZnO/Ag and ZnO/CdO nanocomposites. The ZnO/Ag/CdO nanocomposite was also used for the degradation of the industrial textile effluent (real sample analysis) and degraded more than 90% in 210. min under visible light irradiation. The small size, high surface area and synergistic effect in the ZnO/Ag/CdO nanocomposite is responsible for high photocatalytic activity. These results also showed that the Ag nanoparticles induced visible light activity and facilitated efficient charge separation in the ZnO/Ag/CdO nanocomposite, thereby improving the photocatalytic performance.

Original languageEnglish
Pages (from-to)126-133
Number of pages8
JournalJournal of Colloid and Interface Science
Volume452
DOIs
StatePublished - 5 Aug 2015
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2015 Elsevier Inc.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 9 - Industry, Innovation, and Infrastructure
    SDG 9 Industry, Innovation, and Infrastructure

Keywords

  • Industrial textile effluent
  • Nanocomposite
  • Photocatalysis
  • Visible light
  • ZnO/Ag/CdO

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Surfaces, Coatings and Films
  • Colloid and Surface Chemistry

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