Preparation of Sn doped nanometric TiO2 powders by reflux and hydrothermal syntheses and their characterization

KİRAZ N., BURUNKAYA E., Kesmez Ö., ÇAMURLU H. E., Asilturk M., Yeşil Z., ...Daha Fazla

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, cilt.59, sa.2, ss.381-386, 2011 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 59 Sayı: 2
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1007/s10971-011-2515-7
  • Dergi Adı: JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.381-386
  • Anahtar Kelimeler: Nano particle, TiO2, Photocatalysis, Hydrothermal synthesis, Reflux synthesis, NANOSTRUCTURED THIN-FILMS, MALACHITE GREEN-DYE, PHOTOCATALYTIC DEGRADATION, VISIBLE-LIGHT, RHODAMINE-B, UV, PERFORMANCE, TITANIA
  • Akdeniz Üniversitesi Adresli: Evet

Özet

Hydrothermal and reflux synthesis methods were utilized for the preparation of 5% Sn doped TiO2 nanopowders. Obtained powders were subjected to particle size and specific surface area measurements, flame atomic absorption spectroscopy, X-ray diffraction analyses and transmission electron microscopy examination. TiO2 powder prepared by hydrothermal synthesis presented a bimodal particle size distribution with average particle sizes of about 3 and 10 nm, whereas TiO2 powder synthesized by reflux method had an average particle size of 7 nm. Specific surface areas of hydrothermal and reflux synthesized TiO2 were 130 and 115 m(2)/g, respectively. Sn doping in TiO2 was 95.8% in hydrothermal and 86.4% in reflux synthesis as measured by FAAS, respectively. Photocatalytic activities of the obtained TiO2 powders were evaluated by decomposition of malachite green solution in a solar box. Photocatalytic activity of hydrothermally synthesized TiO2 was fairly higher in visible light and slightly higher in UV light than the activity of reflux synthesized TiO2.