Synthesis of TiO2-xNy/Ag-PbMoO4 nanocomposites: An effective approach for photoinactivation of green tide under simulated solar light

Tae Ho Kim, Yong Hyun Jo, Gobinda Gyawali, Rajesh Adhikari, Tohru Sekino, Soo Wohn Lee

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

The TiO2-xNy/Ag-PbMoO4 nanocomposites were prepared by sonochemical method. The as-prepared powders were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), and diffuse reflectance UV-vis spectroscopy (UV-vis-DRS). The results revealed that the band gap energy absorption edge of TiO2-xN y/Ag-PbMoO4 nanocomposites red shifted as compared to TiO2-xNy and Ag-PbMoO4. According to FE-SEM studies, Ag-PbMoO4 gets to be decorated with evenly distributed TiO2-xNy nanoparticles. The photocatalytic activity of TiO2-xNy/Ag-PbMoO4 nanocomposites for photoinactivation of green tide (Tetraselmis suecica) under simulated solar light was enhanced as compared with TiO2-xNy and Ag-PbMoO4. The TiO2-xNy/Ag-PbMoO4 nanocomposites showed the highest percentage (100%) of removing of Tetraselmis suecica after 25 min. The TiO2-xNy/Ag-PbMoO4 nanocomposite may facilitate the charge transfer process more efficiently by inhibiting electron-hole recombination, which enhanced the photocatalytic activity.

Original languageEnglish
Pages (from-to)99-102
Number of pages4
JournalMaterials Letters
Volume101
DOIs
Publication statusPublished - 2013

Keywords

  • Green tide
  • Photocatalyst
  • Simulated solar light

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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