Izvorni znanstveni članak
Green Synthesis of Silver Nanoparticles and the Study of Optical Properties
Ramakrishna Vasireddy
; Nanoscience Laboratory, Department of Physics, National Institute of Technology, Durgapur, India
Rima Paul
; Nanoscience Laboratory, Department of Physics, National Institute of Technology, Durgapur, India
Apurba Krishna Mitra
; Nanoscience Laboratory, Department of Physics, National Institute of Technology, Durgapur, India
Sažetak
The synthesis of silver nanoparticles of varying size has been achieved using different molar concentrations of NaOH while the effect of changing the temperature has been studied. AgNO3, gelatine, glucose and NaOH are used as a silver precursor, stabilizer, reducing agent and accelerator respectively. The synthesized nanoparticles have been characterized by a FESEM study, X‐ray diffractometry, Raman spectroscopy and UV‐vis spectroscopy. The colloidal sols of the silver nanoparticles in a biopolymer gelatine show strong surface plasmon resonance absorption peaks. The visible photoluminescence emission from the synthesized silver nanocrystals has been recorded within the wavelength range of 400‐600 nm under UV excitation. The synthesized nanoparticles may be extremely useful in making biosensor devices as well as for other applications.
Ključne riječi
silver nanoparticles; green synthesis; stabilizer gelatine; photoluminescence
Hrčak ID:
142867
URI
Datum izdavanja:
1.1.2012.
Posjeta: 2.749 *