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Green sonochemical synthesis of silver nanoparticles at varying concentrations of kappa-carrageenan

Elsupikhe, Randa Fawzi and Shameli, Kamyar and Ahmad, Mansor B. and Ibrahim, Nor Azowa and Zainudin, Norhazlin (2015) Green sonochemical synthesis of silver nanoparticles at varying concentrations of kappa-carrageenan. Nanoscale Research Letters, 10 (1). pp. 1-8. ISSN 1931-7573

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Official URL: http://dx.doi.org/10.1186/s11671-015-0916-1

Abstract

A green sonochemical method was developed for preparing silver nanoparticles (Ag-NPs) in different concentrations of kappa carrageenan (κ-carrageenan). The κ-carrageenan was used as a natural eco-friendly stabilizer, and ultrasonic irradiation was used as a green reducing agent. The number of Ag-NPs increased with increasing κ-carrageenan concentrations. Formation of Ag/κ-carrageenan was determined by UV-visible spectroscopy where the surface plasmon absorption maximum was observed at 402 to 420 nm. The X-ray diffraction (XRD) analysis showed that the Ag-NPs are of a face-centered cubic structure. The Fourier transform infrared (FT-IR) spectrum indicated the presence of Ag-NPs in κ-carrageenan. Transmission electron microscopy (TEM) image for the highest concentration of κ-carrageenan showed the distribution of Ag-NPs with an average particle size near to 4.21 nm. Scan electron microscopy (SEM) images illustrated the spherical shape of the Ag-NPs. The use of photo irradiation provides a green and economic feature to this work

Item Type:Article
Uncontrolled Keywords:silver nanoparticles, silver nitrate, ultrasonic irradiation
Subjects:T Technology > T Technology (General)
Divisions:Malaysia-Japan International Institute of Technology
ID Code:55519
Deposited By: Fazli Masari
Deposited On:19 Sep 2016 04:08
Last Modified:15 Feb 2017 04:44

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