Synthesis and characterization of photosensitive TiO2 nanorods by controlled precipitation route

D. P. Dubal, Dattatray Dhawale, A. M. More, C. D. Lokhande

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

Nanocrystalline TiO2 thin films have been successfully synthesized by controlled precipitation route. These films are further annealed at 623 K for 2 h. The change in structural, morphological, optical, and wettability properties are studied by means of X-ray diffraction (XRD), Fourier transform infrared spectrum (FTIR), scanning electron microscopy (SEM), optical absorption, and contact angle measurement. From the XRD pattern it is clear that the as-grown TiO2 films are amorphous in nature which becomes polycrystalline after annealing. The FTIR study reveals the formation of TiO2 compound. Scanning electron micrographs shows that the as-grown TiO2 film consists of agglomerated nanograins well covered to the substrate surface which gets converted into vertical nanorods after annealing. As-deposited and annealed TiO2 films showed hydrophilic behavior as water contact angles were 24° and 32°, respectively. The optical absorption study reveals the small red shift due to annealing and attributed to grain size. The annealed TiO2 film showed conversion efficiency of 0.037% in photoelectrochemical cell with 1 M NaOH electrolyte.

Original languageEnglish
Pages (from-to)2288-2293
Number of pages6
JournalJournal of Materials Science
Volume46
Issue number7
DOIs
Publication statusPublished - Apr 2011
Externally publishedYes

Fingerprint

Nanorods
Annealing
Light absorption
Contact angle
Fourier transforms
Infrared radiation
Photoelectrochemical cells
X ray diffraction
Amorphous films
Angle measurement
Diffraction patterns
Electrolytes
Conversion efficiency
Wetting
Scanning
Thin films
Scanning electron microscopy
Electrons
Water
Substrates

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Synthesis and characterization of photosensitive TiO2 nanorods by controlled precipitation route. / Dubal, D. P.; Dhawale, Dattatray; More, A. M.; Lokhande, C. D.

In: Journal of Materials Science, Vol. 46, No. 7, 04.2011, p. 2288-2293.

Research output: Contribution to journalArticle

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