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- Title
NOVEL AND COST-EFFECTIVE SYNTHESIS OF SILVER NANOCRYSTALS:: A GREEN SYNTHESIS.
- Authors
ARSHI, NISHAT; AHMED, FAHEEM; ANWAR, M. S.; KUMAR, SHALENDRA; KOO, BON HEUN; LU, JUNQING; LEE, CHAN GYU
- Abstract
This paper reports the study on the synthesis and characterization of silver nanocrystals by a two-step synthesis procedure. The first step is the solution-free hand grinding of silver foil and sugar at room temperature for few minutes. The second step is the thermal decomposition of silver/sugar composite to form silver nanocrystals. The as-synthesized silver nanocrystals were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), ultraviolet visible (UV/Vis) spectroscopy, atomic force microscopy (AFM) and transmission electron microscopy (TEM) studies. The XRD pattern showed a face-centered cubic structure (single phase) with high crystallinity. The lattice parameters calculated from XRD pattern were found to be a = 4.12 Å for silver nanocrystals with average grain size of ~ 19 nm. The energy dispersive analysis of X-rays (EDAX) of silver nanocrystals confirmed the presence of silver and no peak of any secondary phase was detected. FESEM and AFM studies showed that the crystals have cube-like morphology. TEM results showed that the size of silver nanocrystals was found to be ~ 22 nm. This novel synthesis route, not reported earlier, would be a promising candidate for a variety of future applications of silver nanocrystals.
- Subjects
COLLOIDAL silver; NANOCRYSTALS; COST effectiveness; ELECTRON microscopy; SURFACE plasmon resonance; X-ray diffraction
- Publication
NANO, 2011, Vol 6, Issue 4, p295
- ISSN
1793-2920
- Publication type
Article
- DOI
10.1142/S1793292011002743