Fabrication and Characteristics of Methyl-Modified TiO2-SiO2 Membrane by Sol-Gel Method: Effect of Titania Content

NanosizedTiO2powder was synthesized via sol-gel method using titanium tetraisopoxide (TPT) as the precursor. Mol ratios of water to TPT were varied from 1 (Powder A), 2 (Powder B), 3 (Powder C), and 4 (Powder D) to evaluate effect of hydrolysis degree. TG/DTA curves showed that amorphous phase turned to anatase crystal structure at ca. 415, 337, 310, and339∘C for Powders A, B, C, and D, respectively. XRD analysis showed that all the synthesizedTiO2powders were 100% in anatase form with Powders B and C showing considerably higher crystallinities. The powders obtained at lower water to TPT mol ratios were spherical in shape and they became bar-like shapes higher mol ratios. The lower hydrolysis degree led to higher surface area of the Powder A (24.8 m2/g) compared to Powder B (14.6 m2/g). From phenol photocatalytic measurement, Powder B was the most efficient attributed to its higher crystallinity.

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Synthesis of polystyrene/silica hybrid composites by the sol–gel method: effect of introduction of a flexible component (butyl acrylate) into the silylated polystyrene backbone

Colloid & Polymer Science ◽

10.1007/s00396-006-1498-3 ◽

2006 ◽

Vol 284 (10) ◽

pp. 1163-1169 ◽

Cited By ~ 5

Author(s):

Tapasi Kotoky ◽

S. K Dolui

Keyword(s):

Butyl Acrylate ◽

Hybrid Composites ◽

Sol Gel ◽

Gel Method ◽

Sol Gel Method ◽

Method Effect ◽

Flexible Component ◽

Silica Hybrid

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Properties of calcium-phosphate materials obtained by sol-gel method: effect of MgO concentration

Journal of Physics Conference Series ◽

10.1088/1742-6596/1145/1/012027 ◽

2019 ◽

Vol 1145 ◽

pp. 012027 ◽

Cited By ~ 1

Author(s):

L Borilo ◽

E Lyutova ◽

E Izosimova

Keyword(s):

Calcium Phosphate ◽

Sol Gel ◽

Gel Method ◽

Sol Gel Method ◽

Method Effect

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Synthesis of ZnFe2O4 Using sol-gel Method: Effect of Different Calcination Parameters

Procedia Engineering ◽

10.1016/j.proeng.2016.06.563 ◽

2016 ◽

Vol 148 ◽

pp. 787-794 ◽

Cited By ~ 16

Author(s):

Farukh Iqbal ◽

Mohamed Ibrahim Abd Mutalib ◽

Maizatul Shima Shaharun ◽

Maksudurrahman khan ◽

Bawadi Abdullah

Keyword(s):

Sol Gel ◽

Gel Method ◽

Sol Gel Method ◽

Method Effect

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Hydrogen production by auto-thermal reforming of ethanol over Ni catalyst supported on ZrO2 prepared by a sol–gel method: Effect of H2O/P123 mass ratio in the preparation of ZrO2

Catalysis Today ◽

10.1016/j.cattod.2008.10.028 ◽

2009 ◽

Vol 146 (1-2) ◽

pp. 57-62 ◽

Cited By ~ 21

Author(s):

Min Hye Youn ◽

Jeong Gil Seo ◽

Ji Chul Jung ◽

Sunyoung Park ◽

Dong Ryul Park ◽

...

Keyword(s):

Hydrogen Production ◽

Sol Gel ◽

Ni Catalyst ◽

Mass Ratio ◽

Gel Method ◽

Sol Gel Method ◽

Method Effect

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Direct synthesis of dimethyl carbonate from methanol and carbon dioxide over Ga2O3-CeO2-ZrO2 catalysts prepared by a single-step sol-gel method: Effect of acidity and basicity of the catalysts

Korean Journal of Chemical Engineering ◽

10.1007/s11814-012-0017-0 ◽

2012 ◽

Vol 29 (8) ◽

pp. 1019-1024 ◽

Cited By ~ 15

Author(s):

Hye Jin Lee ◽

Wangrae Joe ◽

Ji Chul Jung ◽

In Kyu Song

Keyword(s):

Carbon Dioxide ◽

Dimethyl Carbonate ◽

Direct Synthesis ◽

Sol Gel ◽

Single Step ◽

Gel Method ◽

Sol Gel Method ◽

Method Effect ◽

Acidity And Basicity

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Synthesis of magnesium oxide by the sol-gel method: Effect of the pH on the surface hydroxylation

Journal of Catalysis ◽

10.1016/0021-9517(91)90210-u ◽

1991 ◽

Vol 127 (1) ◽

pp. 75-85 ◽

Cited By ~ 57

Author(s):

T LOPEZ

Keyword(s):

Magnesium Oxide ◽

Sol Gel ◽

Gel Method ◽

Sol Gel Method ◽

Method Effect ◽

Surface Hydroxylation

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Changes in Optical Parameters of SiO2:TiO2 Films Obtained by Sol-Gel Method Observed as a Result of Thermal Treatment

Materials ◽

10.3390/ma14092290 ◽

2021 ◽

Vol 14 (9) ◽

pp. 2290

Author(s):

Jacek Nizioł ◽

Ewa Gondek ◽

Paweł Karasiński

Keyword(s):

Sol Gel ◽

Dip Coating ◽

Optical Parameters ◽

Tio2 Films ◽

Tio2 Thin Films ◽

Repeated Heating ◽

Gel Method ◽

Sol Gel Method ◽

Titania Content ◽

Wave Sensors

The research focused on materials having potential applications in technology of planar evanescent wave sensors. Four samples of binary SiO2:TiO2 thin films having different titania content were manufactured through the sol-gel method and dip-coating technique on polished silicon substrates. The samples were subjected to repeated heating/cooling protocols. Simultaneously, their optical parameters were monitored by spectroscopic ellipsometry as they evolved under varying temperature. Subsequent analysis confirmed linear dependence of refractive index on titania content, at least in vis-NIR wavelengths, as well as a low value of the thermal expansion coefficient. It was shown that the thickness of SiO2:TiO2 films decreased as a result of annealing processes, which may be a consequence of reduced porosity.

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