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Synthesis of Nanocrystalline Cellulose Stabilized Copper Nanoparticles

Musa, A. and Ahmad, M. B. and Hussein, M. Z. and Mohd. Izham, S. and Shameli, K. and Abubakar Sani, H. (2016) Synthesis of Nanocrystalline Cellulose Stabilized Copper Nanoparticles. Journal of Nanomaterials, 2016 . ISSN 1687-4110

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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. 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.

Item Type:Article
Uncontrolled Keywords:Ascorbic acid, Cellulose derivatives, Copper, Metal ions, Metal nanoparticles, Metals, Nanocrystals, Nanoparticles, Particle size, Scanning electron microscopy, Solutions, Synthesis (chemical), Transmission electron microscopy, Ultraviolet visible spectroscopy, X ray diffraction analysis, Average particle size, Chemical reduction methods, Energy dispersive x-ray, Face centered cubic structure, Field emission scanning electron microscopes, Nanocrystalline cellulose, Nanocrystalline cellulose(NCC), UV-visible spectroscopy, Cellulose, Cellulose Derivatives, Copper, Particle Size, Surface Properties
Subjects:T Technology > T Technology (General)
Divisions:Malaysia-Japan International Institute of Technology
ID Code:71750
Deposited By: Widya Wahid
Deposited On:22 Nov 2017 12:07
Last Modified:22 Nov 2017 12:07

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