Microwave assisted hydrothermal synthesis of Ag/AgCl/WO 3 photocatalyst and its photocatalytic activity under simulated solar light

Rajesh Adhikari, Gobinda Gyawali, Tohru Sekino, Soo Wohn Lee

Research output: Contribution to journalArticlepeer-review

64 Citations (Scopus)

Abstract

Simulated solar light responsive Ag/AgCl/WO 3 composite photocatalyst was synthesized by microwave assisted hydrothermal process. The synthesized powders were characterized by X-Ray Diffraction (XRD) spectroscopy, X-Ray Photoelectron Spectroscopy (XPS), Transmission Electron Microscopy (TEM), Diffuse Reflectance Spectroscopy (UV-Vis DRS), and BET surface area analyzer to investigate the crystal structure, morphology, chemical composition, optical properties and surface area of the composite photocatalyst. This photocatalyst exhibited higher photocatalytic activity for the degradation of rhodamine B under simulated solar light irradiation. Dye degradation efficiency of composite photocatalyst was found to be increased significantly as compared to that of the commercial WO 3 nanopowder. Increase in photocatalytic activity of the photocatalyst was explained on the basis of surface plasmon resonance (SPR) effect caused by the silver nanoparticles present in the composite photocatalyst.

Original languageEnglish
Pages (from-to)560-565
Number of pages6
JournalJournal of Solid State Chemistry
Volume197
DOIs
Publication statusPublished - 2013 Jan 1

Keywords

  • Hydrothermal
  • Microwave
  • Nanocomposite
  • Solar simulator
  • Surface plasmon resonance

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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