Sol-Gel Preparation of Nanoscale TiO&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;/SiO&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt; Composite for Eliminating of Con Red Azo Dye

Nilchi, A.; Janitabar-Darzi, Simin; Rasouli-Garmarodi, S.

doi:10.4236/msa.2011.25064

Cited by 33 publications

(35 citation statements)

References 30 publications

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“…From Fig. 2(a) in all composition of unsintered samples, one can observe a broad band between 3255 and 3386 cm À1 assigned to the fundamental stretching vibration of free or bonded hydroxyl groups belonging to adsorbed water, which are proved by a weak band at 1630 cm À1 [16]. The weak band at 2975 cm À1 is attributed to -C-H stretching vibration [17].…”

Section: Ftir Characterizationmentioning

confidence: 91%

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Microstructure and optical dispersion characterization of nanocomposite sol–gel TiO 2 –SiO 2 thin films with different compositions

Kermadi

Agoudjil

Sali

et al. 2015

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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Section: Ftir Characterizationmentioning

confidence: 91%

“…The band at 945 cm À1 is attributed to the stretching mode of Si-OH or SiO À groups [22], but in mixed materials, it is superimposed onto the band of the Si-O-Ti stretching mode confirming the linkage in TiO 2 -SiO 2 composite material [14,16,19,22].…”

Section: Ftir Characterizationmentioning

confidence: 97%

Microstructure and optical dispersion characterization of nanocomposite sol–gel TiO 2 –SiO 2 thin films with different compositions

Kermadi

Agoudjil

Sali

et al. 2015

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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“…The BET surface area was found to be 116 to 161 m 2 /g in the case of TiO 2 nanoparticles and TiO 2 /TiO 2 @SiO 2 nanocomposite, respectively. This sizeable increase in surface area by addition of TiO 2 @SiO 2 core-shell may be due to the SiO 2 limiting the agglomeration of TiO 2 particles [24,25]. …”

Section: Surface Area and Pore Size Distributionmentioning

confidence: 99%

Synthesis and Characterization of TiO 2 @SiO 2 and SiO 2 @TiO 2 Core-Shell Structure Using Lapindo Mud Extract via Sol-Gel Method

Budiarti

Puspitasari

Hatta

et al. 2017

Procedia Engineering

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Core-shell structures were prepared using silica from Lapindo mud extract. The XRD results showed that the extracted silica contains γ-Al 2 O 3 and NaAlSi 3 O 8 . Besides, the FT-IR, Raman spectroscopy, and FE-SEM analyses showed that the core particles were not finely covered by the shell. BET measurement indicated that high surface areas are attainable for core-shell structures addition into TiO 2 nanoparticles. TiO 2 /TiO 2 @SiO 2 core-shell structure has 161.100 m 2 /g and 0.311 cc/g of surface area and pore volume, respectively. Whereas, TiO 2 /SiO 2 @TiO 2 core-shell structure has surface area of 140.200 m 2 /g and pore volume of 0.292 cc/g.

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“…The BET surface area was found to be 62 to 303 m 2 /g in the case of TiO 2 nanoparticles and TiO 2 /SiO 2 nanocomposite, respectively. This sizeable increase in surface area of TiO 2 /SiO 2 nanocomposite may be due to the SiO 2 limiting the agglomeration of TiO 2 particles (Nilchi et al 2011;Sirimahachai and Ndiege 2010).…”

Section: Characterizationmentioning

confidence: 99%

Synthesis and characterization of TiO2/SiO2 nano composites for solar cell applications

Kumar¹,

Shyla²,

Xavier³

2012

Appl Nanosci

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The use of titania-silica in photocatalytic process has been proposed as an alternative to the conventional TiO 2 catalysts. Mesoporous materials have been of great interest as catalysts because of their unique textural and structural properties. Mesoporous TiO 2 , SiO 2 nanoparticles and TiO 2 /SiO 2 nanocomposites were successfully synthesized by sol-gel method using titanium (IV) isopropoxide, tetra-ethylorthosilicate as starting materials. The synthesized samples are characterized by X-ray diffraction, UV-Vis spectroscopy, Fourier transform infrared spectroscopy, Brunauett-Emmett-Teller and field-dependent photoconductivity. The UV-Vis spectrum of as-synthesized samples shows similar absorption in the visible range. The crystallite size of the as-synthesized samples was calculated by Scherrer's formula. The BET surface area for TiO 2 /SiO 2 nanocomposite is found to be 303 m 2 /g and pore size distribution has average pore diameter about 10 nm. It also confirms the absence of macropores and the presence of micro and mesopores. The field-dependent photoconductivity of TiO 2 /SiO 2 nanocomposite shows nearly 300 folds more than that of TiO 2 nanoparticle for a field of 800 V/cm.

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Sol-Gel Preparation of Nanoscale TiO<sub>2</sub>/SiO<sub>2</sub> Composite for Eliminating of Con Red Azo Dye

Abstract: ABSTRACT

Cited by 33 publications

References 30 publications

Microstructure and optical dispersion characterization of nanocomposite sol–gel TiO 2 –SiO 2 thin films with different compositions

Microstructure and optical dispersion characterization of nanocomposite sol–gel TiO 2 –SiO 2 thin films with different compositions

Synthesis and Characterization of TiO 2 @SiO 2 and SiO 2 @TiO 2 Core-Shell Structure Using Lapindo Mud Extract via Sol-Gel Method

Synthesis and characterization of TiO2/SiO2 nano composites for solar cell applications

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