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Vol. 25 No. 8 (2013): Vol 25 Issue 8

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Preparation of Ag-SiO2 Nanocomposites and Photocatalytic Degradation of Organic Dyes

https://doi.org/10.14233/ajchem.2013.14439
Weon Bae Ko
Department of Chemisty, Sahmyook University, Seoul 139-742, South Korea
Youn Jun Oh
Department of Chemisty, Sahmyook University, Seoul 139-742, South Korea
Bum Hwi Cho
Department of Chemisty, Sahmyook University, Seoul 139-742, South Korea

Corresponding Author(s) : Weon Bae Ko

kowb@syu.ac.kr

Asian Journal of Chemistry, Vol. 25 No. 8 (2013): Vol 25 Issue 8

Abstract

Silicon dioxide (SiO2) nanoparticles were synthesized using a sonochemical method by applying ultrasonic irradiation to a mixed aqueous-alcoholic solution of ammonium hydroxide with tetraethyl orthosilicate at room temperature. The morphology and optical properties of the Ag-SiO2 nanocomposites were determined by X-ray diffraction, scanning electron microscopy, transmission electron microscopy and ultraviolet-visible spectroscopy. The Ag-SiO2 nanocomposites were examined as a catalyst for the photocatalytic degradation of organic dyes, e.g., methylene blue, methyl green, methyl violet, methyl orange and rhodamine B under visible light at 380-780 nm.

Keywords

SiO2 nanoparticles Ag nanoparticles Ag-SiO2 nanocomposites Organic dyes Photocatalytic degradation
Bae Ko, W., Jun Oh, Y., & Hwi Cho, B. (2013). Preparation of Ag-SiO2 Nanocomposites and Photocatalytic Degradation of Organic Dyes. Asian Journal of Chemistry, 25(8), 4657–4660. https://doi.org/10.14233/ajchem.2013.14439
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