Photocatalytic Properties of Silver Incorporated Titania Nanoparticles Immobilized on Waste-Derived Polystyrene


ALTIN İ., Sokmen M.

WATER AIR AND SOIL POLLUTION, vol.225, no.1, 2014 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 225 Issue: 1
  • Publication Date: 2014
  • Doi Number: 10.1007/s11270-013-1786-8
  • Journal Name: WATER AIR AND SOIL POLLUTION
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Keywords: Ag-TiO2 immobilized on polystyrene, Disinfection, Wastewater treatment, ESCHERICHIA-COLI, METHYLENE-BLUE, MODIFIED TIO2, DEGRADATION, REDUCTION, CR(VI), REMOVAL, FILMS
  • Karadeniz Technical University Affiliated: Yes

Abstract

Silver-doped TiO2 (Ag-TiO2) immobilized onto polystyrene (PS) waste was prepared using a thermal attachment method. Its efficiencies as a photocatalyst under UVA light (lambda=365 nm) for the removal of Cr(VI), methylene blue, Escherichia coli, and Aspergillus niger from water were studied. The results showed that Ag-TiO2-PS material removes pollutants at significantly high rates and especially posseses strong disinfection properties. The morphological study of Ag-TiO2-PS material was carried out using X-ray diffraction, scanning electron microscope, and energy dispersive X-ray spectroscopy. The catalyst can be prepared using waste PS employing a simple immobilization method and it is highly effective for the removal of biological and chemical impurities from drinking and underground water supplies.