Neodymium Doped ZrO2-graphene Oxide Nanocomposites: A Promising Photocatalyst for Photodegradation of Eosin Y Dye

M. Mzoughi, William W. Anku, Samuel O.B. Oppong, Sudheesh K. Shukla, Eric S. Agorku, Penny P. Govender

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)

Abstract

Purification of industrial wastewater from dyes receiving increasing attentions. The aim of the present manuscript was to fabricate graphene based nanocomposites using a homogeneous and facile approach. Co-precipitation method was used to synthesize zirconium oxide (ZrO2) and neodymium doped ZrO2-graphene oxide (Nd-ZrO2-GO) nanocomposites with varying weight percent concentrations of neodymium to investigate the increasing photocatalytic activity. The Nd-ZrO2-GO catalysts were characterized using X-ray powder diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (SEM), and ultra violet-visible (UV-vis)-spectroscopy to evaluate their optical, morphological and structural properties respectively. The photocatalytic degradation potential of the nanocatalyst was assessed by the degradation of Eosin Y dye in aqueous solution under simulated solar light irradiation. The Nd-ZrO2-GO was observed to have higher photocatalytic degradation potential than the bare ZrO2. The most efficient photocatalyst for the degradation of Eosin Y dye was 0.3 % Nd-ZrO2-GO with about 80 % efficiency within 180 min and a Ka value of 4.19 × 10-3. Nd-ZrO2-GO catalyst would be considered as efficient photocatalyst to degrade the industrial dyes (Eosin Y) avoiding the dreary filtration steps.

Original languageEnglish
Pages (from-to)946-950
Number of pages5
JournalAdvanced Materials Letters
Volume7
Issue number12
DOIs
Publication statusPublished - 2016

Keywords

  • Dye degradation
  • Eosin Y
  • Graphene oxide
  • Photocatalysis
  • Photodegradation
  • Polymer-metal nanocomposites

ASJC Scopus subject areas

  • General Materials Science

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