Electrophoretic deposition of hydrothermally synthesised Ag-TiO2 hybrid nanoparticles onto 3-D Ni filters

Noberi C., Zaman A. C., Üstündağ C. B., Kaya F., Kaya C.

Materials Letters, cilt.67, sa.1, ss.113-116, 2012 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 67 Sayı: 1
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1016/j.matlet.2011.08.098
  • Dergi Adı: Materials Letters
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.113-116
  • Anahtar Kelimeler: TiO2-Ag, EPD, Nanoparticle, Deposition
  • İstanbul Gelişim Üniversitesi Adresli: Hayır

Özet

Ag-TiO2 hybrid nano-powders were synthesised by hydrothermal method (HS) at 180 °C for 2 h. TEM and AFM analyses have shown that Ag nanoparticles embedded within the coarser TiO2 particles have a spherical shape with a diameter of 7 nm whilst the size of the TiO2 nanoparticles is found to be around 40 nm. It is also shown that the calcined (500 °C for 1 h) hybrid composite particles result in the formation of anatase TiO2. The synthesised Ag-TiO2 nanopowders were dispersed in ethanol to obtain stable colloidal suspensions and used to coat Ni-based filters using electrophoretic deposition (EPD) using an applied voltage of 30 V for 2 min. Overall, it is shown that hydrothermal processing is an effective way of synthesising nano-sized Ag-TiO2 hybrid powders in a short time and EPD is a good way to get full coating onto 3-D Ni-based filters if stable suspensions are used. © 2011 Elsevier B.V. All rights reserved.