Synthesis of TiO2 porous thin films by polyethylene glycol templating and chemistry of the process

Bu, Shaojing; Jin, Zhengguo; Liu, X.X.; Yang, Long; Cheng, Zhijie

doi:10.1016/j.jeurceramsoc.2003.12.025

Cited by 107 publications

(34 citation statements)

References 20 publications

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“…This is possibly due to the lateral and longitudinal inhomogeneity in the distribution of the template to titanium dioxide weight ratio with in these areas [24]. A similar effect was observed earlier for titanium dioxide coated films by Bu et al [25].…”

Section: In Vitro Characterisationsupporting

confidence: 75%

Surface characterisation and electrochemical behaviour of porous titanium dioxide coated 316L stainless steel for orthopaedic applications

Srinivasan

Rajendran

2009

Applied Surface Science

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Section: In Vitro Characterisationsupporting

confidence: 75%

Surface characterisation and electrochemical behaviour of porous titanium dioxide coated 316L stainless steel for orthopaedic applications

Srinivasan

Rajendran

2009

Applied Surface Science

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“…Hence, CAT.4 appears as a unity structure but in CAT.3, CH 3 COOH caused phase separation in the sols and produced cracked and rough texture in films. Although these results are in good agreement with Bu et al (2005) who found that CH 3 COOH origins phase separation but in CAT.3 it hasn't been marked any isolated islands similar to their results. This may be attributed to the different preparation route of the sol especially the presence of iso-propanol as a solvent.…”

Section: Physical Properties Of Synthesized Tio 2 Powderssupporting

confidence: 91%

Characterization and photocatalytic activities of nanosized titanium dioxide thin films

Tehrani

Rashidzadeh²,

Nemati

et al. 2011

Int. J. Environ. Sci. Technol.

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Thin films of titanium dioxide with high surface area are prepared by sol-gel dip-coating technique. In this regards, Titania nano sols with high photocatalytic activity were prepared by dissolving titanium alkoxide in alcohol and water under acidic conditions. Photocatalytic activities of titanium dioxide thin films were measured in the presence of methylene blue. Microstructure and photocatalytic activity of the films, nanopowders and titanium dioxide sols were investigated using X-ray diffraction, scanning electron microscopy, specific surface area, zeta sizer and ultraviolet-visible spectrometry techniques. Particle size analysis of sols showed that the mean particle sizes were 15 to 128 nm. X-ray diffraction analyses revealed that anatase crystal structure was produced with crystallite size below 11 nm. Increasing mass percent of anatase phase and specific surface area, enhance the photocatalytic activity. Scanning electron microscopy images showed that the addition of methylcellulose as a dispersant, not only produced rough texture in the thin film, but also enhanced photocatalytic activity. The thin films prepared by using nitric acid as a stabilizer, revealed higher photocatalytic activity, surface area and sol stability and these data were more than those prepared with acetic acid.

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“…Nevertheless, two various approaches can be applied accordingly to process parameters. So far, the most widespread [9][10][11][12][13][14][15][16][17][18] is the polymeric approach where an alcohol usually acts as a solvent, and hydrolysis is carefully controlled by means of the limited quantity of water. As a rule, an acid catalyst (HCl and HNO 3 ) is therewith used, which forms a complex with alkoxide, thus making the decrease in the hydrolysis reaction rate possible.…”

Section: Introductionmentioning

confidence: 99%

Surfactant-Assisted Sol-Gel Synthesis of TiO₂ with Uniform Particle Size Distribution

Galkina

Vinogradov

Агафонов

et al. 2011

International Journal of Inorganic Chemistry

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TiO 2 materials were prepared from a titanium isopropoxide precursor by sol-gel processing in water media with or without various templates (polyethylenimine or Pluronic P-123). The photocatalytic efficiency of the samples was found to depend strongly on the use of and type of template added. Titania/Pluronic sols resulted in homogeneous anatase TiO 2 -rutile with uniform particle size distribution after calcination (400 • C). Optical properties of the samples were characterized by UV-Vis spectroscopy and crystalline structures by X-ray diffraction. A surfactant-assisted sol-gel process retarded crystallization of the anatase and rutile titania, which resulted in smaller grain sizes and presumably a larger active surface area. The morphology of the surfaces was obtained by AFM techniques. The highest photobleaching rate was found for samples deposited from the sol with the addition of the Pluronic P-123 surfactant, and it was almost twice as high as that for films deposited from sols with polyethylenimine.

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Synthesis of TiO2 porous thin films by polyethylene glycol templating and chemistry of the process

Cited by 107 publications

References 20 publications

Surface characterisation and electrochemical behaviour of porous titanium dioxide coated 316L stainless steel for orthopaedic applications

Surface characterisation and electrochemical behaviour of porous titanium dioxide coated 316L stainless steel for orthopaedic applications

Characterization and photocatalytic activities of nanosized titanium dioxide thin films

Surfactant-Assisted Sol-Gel Synthesis of TiO₂ with Uniform Particle Size Distribution

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Synthesis of TiO2 porous thin films by polyethylene glycol templating and chemistry of the process

Cited by 107 publications

References 20 publications

Surface characterisation and electrochemical behaviour of porous titanium dioxide coated 316L stainless steel for orthopaedic applications

Surface characterisation and electrochemical behaviour of porous titanium dioxide coated 316L stainless steel for orthopaedic applications

Characterization and photocatalytic activities of nanosized titanium dioxide thin films

Surfactant-Assisted Sol-Gel Synthesis of TiO2 with Uniform Particle Size Distribution

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Product

Resources

About

Surfactant-Assisted Sol-Gel Synthesis of TiO₂ with Uniform Particle Size Distribution