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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