Synthesis of TiO{sub 2} nanoparticles by hydrolysis and peptization of titanium isopropoxide solution

Journal Article · Mon Jul 23 00:00:00 EDT 2012 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4736892· OSTI ID:22069095

Mahata, S; Mahato, S S; Nandi, M M; Mondal, B ^[1]

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1. National Institute of Science and Technology, Palur Hills, Berhampur, Orissa (India)

Here we report the synthesis and characterization of a stable suspension of modified titania nanoparticles. Phase-pure TiO{sub 2} nanocrystallites with narrow particle-size distributions were selectively prepared by hydrolysis-peptization of modified alkoxide followed by hydrothermal treatment. Autoclaving modified TiO{sub 2} in the presence of HNO3 as cooperative catalysts led to the formation of crystalline TiO{sub 2} with narrow-sized distribution. Following the hydrothermal treatment at 150 Degree-Sign C, X-ray diffraction shows the particles to be exclusively anatase. Synthesized powder is characterized by FT-IR, scanning electron microscopy (FESEM) and transmission electron microscopy (HRTEM). The photocatalytic activity in the degradation of orange-II is quite comparable to good anatase and rutile nanocrystallites.

• OSTI ID: 22069095
• Journal Information: AIP Conference Proceedings, Vol. 1461, Issue 1; Conference: IWFM-2011: International workshop on functional materials, Berhampur, Odisha (India), 20-22 Dec 2011; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
CRYSTAL GROWTH
FOURIER TRANSFORMATION
HYDROLYSIS
INFRARED SPECTRA
NANOSTRUCTURES
PARTICLE SIZE
PARTICLES
PHOTOCATALYSIS
PHOTOLYSIS
POWDERS
SCANNING ELECTRON MICROSCOPY
SEMICONDUCTOR MATERIALS
SUSPENSIONS
SYNTHESIS
TITANIUM OXIDES
TRANSMISSION ELECTRON MICROSCOPY
X-RAY DIFFRACTION