Elsupikhe, Randa Fawzi and Shameli, Kamyar and Ahmad, Mansor (2015) Sonochemical method for the synthesis of silver nanoparticles in kappa-carrageenan from silver salt at different concentrations. Research on Chemical Intermediates, 41 (11). pp. 8515-8525. ISSN 0922-6168
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Official URL: http://dx.doi.org/10.1007/s11164-014-1907-z
Abstract
A green sonochemical method was developed for preparing silver nanoparticles (Ag-NPs) in ?-carrageenan in different concentrations of AgNO3. The ?-carrageenan was used as an eco-friendly stabilizer and ultrasonic irradiation as a green reducing agent. The number of Ag-NPs increased with increasing concentrations of AgNO3. Formation of Ag/?-carrageenan was determined by UV-visible spectroscopy where the surface plasmon absorption maximum was observed at 410-416 nm. XRD analysis showed the Ag-NPs are of a face-centered cubic structure. TEM images showed the well-dispersed Ag-NPs with an average particle size <5 nm. SEM images showed the spherical shape of the Ag-NPs. The FT-IR spectrum indicated the presence of ?-carrageenan in capping the Ag-NPs. The use of photo irradiation provides a green and economic method features to the synthesis reported in this study.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | green method, silver nanoparticles |
| Subjects: | Q Science > QD Chemistry |
| Divisions: | Science |
| ID Code: | 56042 |
| Deposited By: | Muhamad Idham Sulong |
| Deposited On: | 15 Nov 2016 07:11 |
| Last Modified: | 15 Nov 2016 07:11 |
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