a green synthesis of copper nanoparticles using native cyclodextrins as stabilizing agents
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2017
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Abstract
In this work, a comparative study of the effect of the NCD size as a stabilizing agent, on the synthesis of copper nanoparticles (Cu-NPs) by an easy green method was reported. The nanoparticles were synthesized through the chemical reduction of aqueous solutions of copper (II) sulfate with ascorbic acid, using different native cyclodextrins (NCDs) (α-, β-, or γ-NCD) as stabilizing agents. Cu-NPs were characterized by scanning electron microscopy–energy dispersive spectroscopy (SEM–EDX), powder X-ray diffraction (XRD) and transmission electron microscopy (TEM). The pattern showed in the typical selected area electron diffraction (SAED) and lattice fringes, evidence that the crystalline structure of Cu-NPs is face-centered cubic (FCC) with a (111), (200) and (220) lattice planes of Cu. The analysis of the TEM images show that the size of the Cu-NPs depends on the type of native cyclodextrin (NCD), also it was observed that the nanoparticles are spherical and with a size between ∼2 and 33 nm. The smaller Cu-NPs were obtained with α-NCD (mode 4 nm), while the nanoparticles obtained with β-NCD show the narrow size distribution (mode 6.5 nm). The average particle size and particle size distribution of Cu-NPs depend upon the type of CDs.
| Reference Key |
surez-cerda2017journala
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| Authors | ;Javier Suárez-Cerda;Heriberto Espinoza-Gómez;Gabriel Alonso-Núñez;Ignacio A. Rivero;Yadira Gochi-Ponce;Lucía Z. Flores-López |
| Journal | zaporožskij medicinskij Žurnal |
| Year | 2017 |
| DOI |
10.1016/j.jscs.2016.10.005
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| URL | |
| Keywords | Keywords not found |
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