Synthesis of Nanocrystalline Cellulose Stabilized Copper Nanoparticles

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. CuSO4·5H2O salt and hydrazine were used as metal ion precursor and reducing agent,...

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Bibliographic Details
Published in:Journal of nanomaterials 2016-01, Vol.2016 (2016), p.1-7
Main Authors: Shameli, Kamyar, Mohd Izham, Saiman, Hussein, Mohd Zobir, Ahmad, Mansor B., Musa, Aminu, Abubakar Sani, Hannatu
Format: Article
Language:English
Subjects:
Algae
Cellulose
Copper
COPPER IONS
COPPER SULFATE
CRYSTAL STRUCTURE
EMISSIONS
Field emission
Laboratories
Methods
Nanocrystals
Nanomaterials
Nanoparticles
PARTICLE SIZE AND SHAPE
PARTICLES
Precursors
Scanning electron microscopy
Sulfuric acid
X RAYS
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Summary: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. CuSO4·5H2O 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.
ISSN:1687-4110
1687-4129
DOI:10.1155/2016/2490906