The Role of Cation Concentration on Particle Formation Mechanism during Hydrothermal Synthesis of Nanosized Tin Oxide (SnO2)

Aciksari C., Tuncolu I. G., Suvaci E., Ozel E., Kaya P., Rembeza S., ...Daha Fazla

JOURNAL OF THE AUSTRALIAN CERAMIC SOCIETY, cilt.52, sa.1, ss.60-71, 2016 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 52 Sayı: 1
  • Basım Tarihi: 2016
  • Dergi Adı: JOURNAL OF THE AUSTRALIAN CERAMIC SOCIETY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.60-71
  • Anahtar Kelimeler: Chemical preparation, Hydrothermal synthesis, Tin oxide (SnO2), Critical cation concentration, Formation and growth mechanism, HOMOGENEOUS PRECIPITATION, POWDERS, SIZE, NANOPARTICLES
  • Anadolu Üniversitesi Adresli: Evet

Özet

Preparation of SnO2 particles via hydrothermal synthesis was investigated as a function of cation concentration and treatment time to develop a fundamental understanding on determination of effective formation and growth mechanisms. SnO2 particles were synthesized at pH 9.0 and 200 degrees C from hydrous tin oxide gel. When the initial cation concentration increases from 0.025 to 1.0 M, mechanism of particle formation shifts from Ostwald ripening to classical nucleation theory at critical cation concentration. Accordingly, particle size increases from 2.80 to 3.50 nm. However, particle size decreases from 3.50 to 2.93 nm with further increasing of cation concentration from 0.10 to 1.00 M. It was observed that particle growth mechanism is not a function of cation concentration and it is diffusion controlled. Particle size of the synthesized SnO2 increases from 2.51 to 2.93 nm as the hydrothermal synthesis time increases from 1 to 24 hours for 1.0 M cation containing system.