Sonochemical method for the synthesis of silver nanoparticles in κ-carrageenan from silver salt at different concentrations
A green sonochemical method was developed for preparing silver nanoparticles (Ag-NPs) in j-carrageenan in different concentrations of AgNO3. The j-carrageenan was used as an eco-friendly stabilizer and ultrasonic irradiation as a green reducing agent. The number of Ag-NPs increased with increasing c...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Springer
2015
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| Online Access: | http://psasir.upm.edu.my/id/eprint/46343/ http://psasir.upm.edu.my/id/eprint/46343/1/Sonochemical%20method%20for%20the%20synthesis%20of%20silver%20nanoparticles%20in%20%CE%BA-carrageenan%20from%20silver%20salt%20at%20different%20concentrations_New.pdf |
| Summary: | A green sonochemical method was developed for preparing silver nanoparticles (Ag-NPs) in j-carrageenan in different concentrations of AgNO3. The j-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/j-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 j-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. |
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