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XRD, Raman and FT-IR spectroscopic observations of nanosized TiO2 synthesized by the sol-gel method based on an esterification reaction


Ivanda, Mile; Musić, Svetozar; Popović, Stanko; Gotić, Marijan;
XRD, Raman and FT-IR spectroscopic observations of nanosized TiO2 synthesized by the sol-gel method based on an esterification reaction // Journal of molecular structure, 481 (1999), Special issue SI; 645-649 doi:10.1016/S0022-2860(98)00783-2 (međunarodna recenzija, članak, znanstveni)


Naslov
XRD, Raman and FT-IR spectroscopic observations of nanosized TiO2 synthesized by the sol-gel method based on an esterification reaction

Autori
Ivanda, Mile ; Musić, Svetozar ; Popović, Stanko ; Gotić, Marijan ;

Izvornik
Journal of molecular structure (0022-2860) 481 (1999), Special issue SI; 645-649

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Sol-gel ; TiO2 ; nanocrystalline anatase ; XRD ; Raman ; FTIR ; bet

Sažetak
Ti(IV)-isopropoxide was hydrolyzed with water molecules generated "in situ" by an esterification between carboxylic acid and alcohol providing excellent control of the hydrolysis and condensation rate. Raman and FT-IR spectra of the TiO2-acetate precursor suggested that the organic ligand is chemically bound to the titanium. With heating of the TiO2-acetate precursor up to 320 degrees C, the surface area increased from 3 to 280 m(2) g(-1). The organic component completely decomposed above 320 degrees C. With a further increase in temperature, the surface area of the nanocrystalline anatase gradually decreased. The method of low-frequency Raman scattering was used to determine the particle size in dependence on experimental conditions, and a good agreement was obtained with the crystallite size determination using the Scherrer method.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kemija



POVEZANOST RADA


Projekt / tema
00980303
00980903
119202

Ustanove
Institut "Ruđer Bošković", Zagreb,
Prirodoslovno-matematički fakultet, Zagreb

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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