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Synthesis and Characterizations of SiO2-Ag Core-Shell Nanostructure Using Fatty Alcohols as Surface Modifiers

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Abstract:

SiO2-Ag core-shell nanostructure with silica core (SiO2) and silver shell (Ag) nanoparticles with spherical morphology were successfully synthesized using a modified self-assembly sol-gel method. Ag nanoparticles at ca.10-50 nm were successfully attached on monodispersed silica spheres (SiO2) with diameter of ca. 450 nm. Renewable resources of palm oil, derived fatty alcohols (octyl-alcohol (C8), decyl-alcohol (C10) and dodecyl-alcohol (C12)) were employed as nonsurfactant surface modifiers prior to coating with Ag nanoparticles. X-ray diffraction (XRD) patterns of calcined SiO2-Ag core-shell nanostructure prepared with surface modifiers exhibited amorphous structure of SiO2 (core) and face-centered cubic (FCC) structure of metallic Ag nanoparticles (shell). The results obtained in the present work demonstrated the feasibility of employing fatty alcohols as potential nonsurfactant surface modifiers in synthesizing SiO2-Ag core-shell.

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Periodical:

Applied Mechanics and Materials (Volumes 773-774)

Pages:

199-203

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.773-774.199

Citation:

Cite this paper

Online since:

July 2015

Authors:

Musdalilah Ahmad Salim*, H. Misran, S.Z. Othman, Nurfatihah Mahadi, Nur Irfah Mohd Pauzi, Abreeza Manap

Keywords:

Morphology, SiO2-Ag Core-Shell, Structural, Surface Modifiers

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Creative Commons CC BY 4.0

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* - Corresponding Author

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