Sonochemical synthesis of silica particles and their size control

Kim, Hwa-Min; Lee, Chang‐Hyun; Kim, Bong-Hwan

doi:10.1016/j.apsusc.2015.12.048

Cited by 29 publications

(19 citation statements)

References 22 publications

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“…These results suggest that the process of sol-to-gel conversion is promoted for aggregation as the condensation reaction accelerates more than the hydrolysis reaction, and when the ammonia content is increased to more than a given amount during the synthesis reaction. 13) Consequently, as with control of distilled water, control of ammonia is considered to be the essential element for further refinement of the hydrolysis and condensation reaction on the basis of the same time. Figure 5 provides images representing the graphs of the average particle diameter of the silica particles prepared as a function of changes in distilled water and ammonia.…”

Section: Methodsmentioning

confidence: 99%

Synthesis of Size Controlled Spherical Silica Nanoparticles via Sol-Gel Process within Hydrophilic Solvent

Kim

Han

et al. 2017

J. Korean Ceram. Soc

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In this study, based on hydrolysis and condensation via Stöber process of sol-gel method, synthesis of mono-dispersed silica nanoparticles was carried out with hydrophilic solvent. This operation was expected to be a more simplified process than that with organic solvent. Based on the sol-gel method, which involves simply controlling the particle size, the particle size of the synthesized silica specimens were ranged from 30 to 300 nm by controlling the composition of tetraethylorthosilicate (TEOS), DI water and ammonia solution, and by varying the stirring speeds while maintaining a fixed amount of ethanol. Increasing the content of DI water and decreasing the content of ammonia caused the particle size to decrease, while controlling the stirring speed at a high level of RPMs enabled a decrease of the particle size. X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FT-IR) were utilized to investigate the success factors for synthesizing process; Field emission scanning electron microscopy (FE-SEM) was used to study the effects of the size and morphology of the synthesized particles. To analyze the dispersion properties, zeta potential and particle size distribution (PSD) analyses were utilized.

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Section: Methodsmentioning

confidence: 99%

Synthesis of Size Controlled Spherical Silica Nanoparticles via Sol-Gel Process within Hydrophilic Solvent

Kim

Han

et al. 2017

J. Korean Ceram. Soc

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“…Via an ultrasound-assisted sol-gel method, Kim et al successfully prepared monodisperse and size-controlled silica particles with a uniformly spherical shape from tetraethyl orthosilicate in the presence of ammonia. [147] The average diameters of silica particles were distributed in the range from 40 to 400 nm, and could be controlled by the reactants' molar ratio which determined the nucleation and growth rates of particles. Salavati-Niasari et al also synthesized spherical SiO 2 nanoparticles by the sonochemical method, [148] and dissimilarly, the schiff-bases (i.e., bis(acetylacetonato)propylene-1,3-diimine and bis(acetylacetonato) buthylene-1,4-diimine) acted as a capping agent for the hydrolysis of tetraethyl orthosilicate in aqueous alcohol solution.…”

Section: Non-carbon Materialsmentioning

confidence: 99%

Sonochemical catalysis as a unique strategy for the fabrication of nano-/micro-structured inorganics

Dong

Zhang

et al. 2021

Nanoscale Adv.

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Section: Introductionmentioning

confidence: 99%

“…Silica (SiO2) nanoparticle has gained more attention because of its enormous potential for some applications such as electronics, catalysis, and biosensor [1,2]. Silica has superiority in terms of its structure, surface area, as well as optical properties [2]. After the research by Strober, synthesis of silica has been done using a lot of methods with diverse variations, for instance duration, catalyst concentration, water concentration, etc.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of silica particles through conventional sol-gel and sonochemistry methods and the effect of catalyst, water concentration and sample environment to the particle size

Kamila

Ridwan

Akhir

et al. 2022

J. Phys.: Conf. Ser.

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Various methods have been carried out in an effort to obtain SiO2 (Silica) particles with relatively the same grain size distribution and a uniform shape. This fine Silica particle size will be useful in the formation of SiC in the next stage. In this works, Silica particles has been synthesized through two different methods: conventional sol-gel and sonochemistry (using ultrasonic probe). Silica was synthesized by mixing TEOS, ethanol, ammonia, and D.I water with the molar ratio of 1 : 75.9 : x : y respectively. In sol-gel method, x was varied with 2.85, 5.7, and 8.54 M while y was fixed at 61.6 M. In sonochemistry method, y was varied with 6.69, 12.3, and 75.9M while x was fixed at 2.85 M Additional variation of sample environment including with and without ice has also been done in sonochemistry method. Amorphous phase was found in all samples from the XRD profiles. FT-IR results showed that the IR spectral peaks of all samples match the FT-IR spectrum of SiO2 with symmetric and asymmetric stretching mode of Si-O functional groups at 802 – 810 cm−1 and 1093 – 1103 cm−1 wavenumber. SEM images indicated that the average of SiO2 particle size tends to increase with the higher amount of ammonia concentration used and lesser concentration of water used results in smaller particle size. The influence of sample environment in sonochemistry method showed an interesting phenomenon where a lot of small particles sticked with bigger particles.

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Sonochemical synthesis of silica particles and their size control

Cited by 29 publications

References 22 publications

Synthesis of Size Controlled Spherical Silica Nanoparticles via Sol-Gel Process within Hydrophilic Solvent

Synthesis of Size Controlled Spherical Silica Nanoparticles via Sol-Gel Process within Hydrophilic Solvent

Sonochemical catalysis as a unique strategy for the fabrication of nano-/micro-structured inorganics

Synthesis of silica particles through conventional sol-gel and sonochemistry methods and the effect of catalyst, water concentration and sample environment to the particle size

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