Laser-induced silver nanoparticles on titanium oxide for photocatalytic degradation of methylene blue

Thou Jen Whang, Hsien Yu Huang, Mu Tao Hsieh, Jyun Jen Chen

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45 Citations (Scopus)

Abstract

Silver nanoparticles doped on titanium oxide (TiO2) were produced by laser-liquid interaction of silver nitrate (AgNO3) in isopropanol. Characteristics of Ag/TiO2 (Ag doped TiO2) nanoparticles produced by the methods presented in this article were investigated by XRD, TEM, SEM, EDX, and UV-Vis. From the UV-Vis measurements, the absorption of visible light of the Ag/TiO2 photocatalysts was improved (additional absorption at longer wavelength in visible light region) obviously. The photocatalytic efficiency of Ag/TiO2 was tested by the degradation of methylene blue (MB) in aqueous solution. A maximum of 82.3% MB degradation is achieved by 2.0 wt% Ag/TiO2 photocatalyst under 2 h illumination with a halogen lamp.

Original languageEnglish
Pages (from-to)4707-4718
Number of pages12
JournalInternational journal of molecular sciences
Volume10
Issue number11
DOIs
Publication statusPublished - 2009 Nov

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Molecular Biology
  • Spectroscopy
  • Computer Science Applications
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry

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