Faried, M. and Shameli, K. and Miyake, M. and Hajalilou, A. and Kalantari, K. and Zakaria, Z. and Hara, H. and Khairudin, N. B. A. (2016) Synthesis of silver nanoparticles via green method using ultrasound irradiation in seaweed Kappaphycus alvarezii media. Research on Chemical Intermediates, 42 (12). pp. 7991-8004. ISSN 0922-6168
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Abstract
Green methods are a safer alternative to natural chemical and physical methods for the synthesis of silver nanoparticles (Ag-NPs), due to their being environmentally friendly and cost effective. This study offers a new green approach using ultrasound irradiation as the reducing agent and seaweed Kappaphycus alvarezii (K. alvarezii) as the natural bio-media. The seaweed K. alvarezii/Ag-NPs was characterised by ultraviolet–visible (UV–vis), X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscope with energy dispersive X-ray (FESEM-EDX), zeta potential, and Fourier transform infrared (FTIR) studies. UV–vis shows that surface plasmon resonance (SPR) arises from this solution due to the combined oscillations from the nanoparticles. The XRD study indicates the crystalline nature of the Ag-NPs. From the TEM images, the Ag-NPs are almost spherical with an average diameter of 11.78 nm. The FTIR spectrum provides adequate evidence of phytochemicals stabilising the nanoparticles. Synthesised Ag-NPs were successfully obtained using this green method.
Item Type: | Article |
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Uncontrolled Keywords: | Cost effectiveness, Fourier transform infrared spectroscopy, High resolution transmission electron microscopy, Irradiation, Metal nanoparticles, Nanoparticles, Scanning electron microscopy, Seaweed, Surface plasmon resonance, Synthesis (chemical), Transmission electron microscopy, Ultrasonics, X ray diffraction, Crystalline nature, Energy dispersive x-ray, Fourier transform infrared studies, Green method, Kappaphycus alvarezii, Silver nanoparticles, Silver nanoparticles (AgNps), Ultrasound irradiation, Silver |
Subjects: | T Technology > TA Engineering (General). Civil engineering (General) |
Divisions: | Malaysia-Japan International Institute of Technology |
ID Code: | 71546 |
Deposited By: | Widya Wahid |
Deposited On: | 20 Nov 2017 08:28 |
Last Modified: | 20 Nov 2017 08:28 |
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