ZnO/Ag nanocomposite: an efficient catalyst for degradation studies of textile effluents under visible light

Mater Sci Eng C Mater Biol Appl. 2013 May 1;33(4):2235-44. doi: 10.1016/j.msec.2013.01.046. Epub 2013 Jan 27.

Abstract

Degradation of model organic dye and industry effluent was studied using different weight percentages of Ag into ZnO as a catalyst. In this study, the catalysts were prepared by thermal decomposition method, which was employed for the first time in the preparation of ZnO/Ag nanocomposite catalysts. The physical and chemical properties of the prepared samples were studied using various techniques. The specific surface area, which plays an important role in the photocatalytic degradation, was studied using BET analysis and 10 wt.% Ag into ZnO showed the best degrading efficiency. The optical absorption (UV-vis) and emission (PL) properties of the samples were studied and results suggest better photocatalytic properties for 10 wt.% Ag sample compared to other samples.

MeSH terms

  • Azo Compounds / chemistry
  • Biodegradation, Environmental
  • Biological Oxygen Demand Analysis
  • Catalysis / radiation effects
  • Crystallization
  • Electrons
  • Light*
  • Methylene Blue / chemistry
  • Nanocomposites / chemistry
  • Nanocomposites / ultrastructure
  • Photoelectron Spectroscopy
  • Photolysis / radiation effects*
  • Silver / chemistry*
  • Spectrophotometry, Ultraviolet
  • Temperature
  • Textiles*
  • Time Factors
  • Titanium / chemistry
  • Waste Disposal, Fluid*
  • X-Ray Diffraction
  • Zinc Oxide / chemistry*

Substances

  • Azo Compounds
  • titanium dioxide
  • Silver
  • methyl orange
  • Titanium
  • Zinc Oxide
  • Methylene Blue