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2008•Journal of Anhui Normal UniversityRequires access

Study on the Technology Parameters for the Preparation of Silica Nanoparticles

Daming Gao

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Abstract

This paper reports the preparation of SiO2 nanoparticles using tetraethyl orthosilicate(TEOS) as reaction precursor and NH3 as catalyst through the sol-gel technology.The effect parameters such as TEOS concentration,ammonia concentration and reaction temperature towards the size of silica nanoparticles have been investigated.The results show the size of silica nanoparticles increase with the increasing of TEOS and NH3 concentration,however,decreased with the increasing of reaction temperature.

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What this paper is about

This paper reports the preparation of SiO2 nanoparticles using tetraethyl orthosilicate(TEOS) as reaction precursor and NH3 as catalyst through the sol-gel technology.The effect parameters such as TEOS concentration,ammonia concentration and reaction temperature towards the size of silica nanoparticles have been investigated.The results show the size of silica nanoparticles increase with the increasing of TEOS and NH3 concentration,however,decreased with the increasing of reaction temperature.

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Available abstract

This paper reports the preparation of SiO2 nanoparticles using tetraethyl orthosilicate(TEOS) as reaction precursor and NH3 as catalyst through the sol-gel technology.The effect parameters such as TEOS concentration,ammonia concentration and reaction temperature towards the size of silica nanoparticles have been investigated.The results show the size of silica nanoparticles increase with the increasing of TEOS and NH3 concentration,however,decreased with the increasing of reaction temperature.

Key concepts: Tetraethyl orthosilicate, Nanoparticle, Catalysis, Ammonia, Sol-gel, Chemical engineering, Orthosilicate, Materials science

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