Photocatalytic studies of Ag/ZnO nanocomposite particles produced via ultrasonic spray pyrolysis method

DERMENCİ K. B., Genc B., Ebin B., Ölmez Hancı T., Gürmen S.

JOURNAL OF ALLOYS AND COMPOUNDS, vol.586, pp.267-273, 2014 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 586
  • Publication Date: 2014
  • Doi Number: 10.1016/j.jallcom.2013.10.004
  • Journal Name: JOURNAL OF ALLOYS AND COMPOUNDS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.267-273
  • Keywords: Ag/ZnO nanocomposites, Ultrasonic spray pyrolysis method, Photocatalytic degradation, METHYLENE-BLUE, TIO2, ZNO, DEGRADATION, DECOLORIZATION, NANOPARTICLES, OXIDE, DYE
  • Anadolu University Affiliated: Yes

Abstract

Noble metal/semiconductor oxide nanocomposites have considerable interest on degradation of pollutants from textile wastewaters. Ag/ZnO, as one of the noble metal/semiconductor oxide nanocomposite, is highly efficient catalyst in textile pollutant degradation that allows irradiation wavelength towards visible light region. Ultrasonic spray pyrolysis method was used to produce spherical, homogenously distributed and submicron Ag/ZnO nanocomposite particles in one step. A water leach solution (0.05-0.2 M, Ag+:Zn2+ = 1: 1) is carried by non-cost air into the reaction furnace (T = 700 degrees C, 800 degrees C and 900 degrees C). UV-A illumination of Methylene Blue (MB) with the presence of Ag/ZnO nanocatalysts after 60 min results up to 40% MB decolorization, 9 x 10 (3) min (1) decolorization rate constant. (C) 2013 Elsevier B.V. All rights reserved.