Fabrication of TiO2 porous thin films using peg templates and chemistry of the process

Bu, Shaojing; Jin, Zhengguo; Liu, Xiaoxin; Yang, Lirong; Cheng, Zhijie

doi:10.1016/j.matchemphys.2004.03.033

Cited by 65 publications

(27 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In addition, the polymer chains in tungstate suspension act as steric stabilizer that prevents aggregation of particles. Currently, polyethylene glycol (PEG, in a variety of molecular weights) is considered as an effective steric stabilizer and template during the synthesis of TiO 2 photocatalysts with high surface area values [13][14][15]. PEG is a water soluble organic polymer with a structure of HO-(CH 2 -O-CH 2 ) n -OH, where n represents the average number of oxyethylene groups.…”

Section: Introductionmentioning

confidence: 99%

Precipitation synthesis of WO3 for NO removal using PEG as template

Luévano-Hipólito¹,

Cruz²,

Yu³

et al. 2014

Ceramics International

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Precipitation synthesis of WO3 for NO removal using PEG as template

Luévano-Hipólito¹,

Cruz²,

Yu³

et al. 2014

Ceramics International

View full text Add to dashboard Cite

“…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

View full text Add to dashboard Cite

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.

show abstract

“…It is evident that under normal light irradiation PEG gives a high photoactivity. Since PEG acts as a pore forming agent, [16][17][18] thus, this characteristic displays increased porosity, which resulted in high numbers of reaction sites. Therefore, a lot of photocatalytic reaction may take place onto immobilized/TiO 2 /PEG surface.…”

Section: Photocatalytic Studymentioning

confidence: 99%

A Comparison Study of New TiO₂/PEG Immobilized Techniques Under Normal and Visible Light Irradiations

Zaharudin

Ain

Bakar

et al. 2016

MATEC Web of Conferences

View full text Add to dashboard Cite

Abstract. Novel photocatalysts of TiO2 and TiO2/PEG were immobilized using new technique which is double sided adhesive tape (DSAT) as a thin layer binder onto glass plate. The photocatalytic activity study of immobilized/TiO2 and immobilized/TiO2/PEG were carried out by irradiating of 36 mg L -1 MB dye in the presence of normal and visible light with rate of decolourization was estimated from aliquot concentration spectrophotometrically. The high photocatalytic activity from immobilized/TiO2/PEG was observed with the rate constants of ca 0.06 and 0.02 min -1 under normal and visible light irradiation respectively. An active photocatalytic activity was observed for immobilized/TiO2/PEG sample while no photocatalytic activity detected under immobilized/TiO2. The high photoactivity was also detected under normal light for immobilized/TiO2/PEG sample. This might be due to the presence of electron conjugate in PEG that acted as electron donor for TiO2 thus increase the photocatalysis process. Moreover, this electron donor is reported to be able to become active under low energy visible light hence the immobilized/TiO2/PEG can perfomed its photoactivity under visible light irradiation.

show abstract

Fabrication of TiO2 porous thin films using peg templates and chemistry of the process

Cited by 65 publications

References 25 publications

Precipitation synthesis of WO3 for NO removal using PEG as template

Precipitation synthesis of WO3 for NO removal using PEG as template

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

A Comparison Study of New TiO₂/PEG Immobilized Techniques Under Normal and Visible Light Irradiations

Contact Info

Product

Resources

About

Fabrication of TiO2 porous thin films using peg templates and chemistry of the process

Cited by 65 publications

References 25 publications

Precipitation synthesis of WO3 for NO removal using PEG as template

Precipitation synthesis of WO3 for NO removal using PEG as template

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

A Comparison Study of New TiO2/PEG Immobilized Techniques Under Normal and Visible Light Irradiations

Contact Info

Product

Resources

About

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

A Comparison Study of New TiO₂/PEG Immobilized Techniques Under Normal and Visible Light Irradiations