LEAVES AND FRUITS EXTRACTS OF TAMARIND INDICA L (MA-GYI) MEDIATED SYNTHESIS OF COPPER(II)OXIDE NANOPARTICLES AND THEIR CHARACTERIZATIONS
Abstract
- Leaves and fruits extracts of Tamarindus indica L. (Ma-Gyi) mediated synthesis of copper(II) oxide nanoparticles (CuO NPs) were conducted in this research. Formation of CuO nanoparticles was studied at four different temperatures viz., 200 ºC, 300 ºC, 400 ºC and 500 ºC and CuO particles formed were characterized by X-ray diffraction analysis. At the temperature of 200 ºC, formation of Cu2O was observed. As the temperature was increased to 300 ºC most of Cu2O particles converted to CuO and at 400 ºC Cu2O impurities peaks were still observed. At 500 ºC, all of the Cu2O peaks disappeared and only single phase of CuO nanoparticles was observed. Well- dissolved characteristic peaks such as (110), ( 11), (111), ( 02), (020), (202) and ( 13) of CuO nanoparticles were found in XRD pattern. CuO nanoparticles were indexed as monoclinic with crystallite sizes of 19.9 nm and 20.9 nm calculated by Scherrer equation. The crystallite sizes of CuO NPs obtained by using leaves and fruits extracts of T. indica L. were found to be 21.2 nm and 21.7 nm, respectively by TEM analysis. SEM analysis showed a large number of spherical nanoparticles with dense agglomerates. Thermal analysis of CuO nanoparticles showed that CuO was almost thermally stable beyond 400 ºC. The presence of characteristic vibration of Cu-O in the range of 430-606 cm-1 was confirmed by FT IR analysis.
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Year
- 2020
Author
-
Daisy
Subject
- Chemistry
Publisher
- Myanmar Academy of Arts and Science (MAAS)