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Synthesis of Nanocrystalline Cellulose Stabilized Copper Nanoparticles.
- Source :
- Journal of Nanomaterials; 2/10/2016, p1-7, 7p
- Publication Year :
- 2016
-
Abstract
- A chemical reduction method was employed for the synthesis of copper nanoparticles stabilized by nanocrystalline cellulose (NCC) using different concentrations of copper salt in aqueous solution under atmospheric air. CuSO<subscript>4</subscript>·5H<subscript>2</subscript>O salt and hydrazine were used as metal ion precursor and reducing agent, respectively. Ascorbic acid and aqueous NaOH were also used as an antioxidant and a pH moderator, respectively. The number of CuNPs increased with increasing concentration of the precursor salt. The formation of copper nanoparticles stabilized by NCC (CuNPs@NCC) was investigated by UV-visible spectroscopy (UV-vis), where the surface absorption maximum was observed at 590 nm. X-ray diffraction (XRD) analysis showed that the CuNPs@NCC are of a face-centered cubic structure. Moreover, the morphology of the CuNPs@NCC was investigated using transmission electron microscope (TEM) and field emission scanning electron microscope (FESEM), which showed well-dispersed CuNPs with an average particle size less than 4 nm and the shape of CuNPs was found to be spherical. Energy dispersive X-ray spectroscope (EDS) also confirmed the presence of CuNPs on the NCC. The results demonstrate that the stability of CuNPs decreases with an increasing concentration of the copper ions. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 16874110
- Database :
- Complementary Index
- Journal :
- Journal of Nanomaterials
- Publication Type :
- Academic Journal
- Accession number :
- 113599386
- Full Text :
- https://doi.org/10.1155/2016/2490906