One-pot synthesis and characterization of Magnesium Oxide nanoparticles prepared by Calliandra Calothyrsus Leaf Extract Indah Kurniawaty (a), Yoki Yulizar (a*), Haryo Satriya Oktaviano (b)
a) Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok, 16424, Indonesia
*yokiy[at]sci.ui.ac.id
b) Research & Technology Innovation PT. Pertamina (Persero)
Abstract
Magnesium oxide nanoparticles (MgO NP) were successfully synthesized in this study using a one-pot green synthesis mediated by Calliandra Calothyrsus leaf extract (CLE). CLE was prepared by maceration of the leaf using methanol with a ratio of 1:5 for 7 days. Secondary metabolites in CLE, such as alkaloids and flavonoids, served as a weak base provider and capping agent in the formation of MgO NP. Shown CLE FTIR spectra peaks at 3255, 1600, 1384, 1205, 1041 and 667 cm-1, respectively, the presence of vibrations O-H stretching, N-H bending, C-C stretching, C-N stretching and N-H wagging. During the experiment, different CLE ratios and calcined temperatures were used, resulting in a variety of structures. EDS and FTIR were used to characterize metal oxide particles. MgO diffraction pattern at 2 theta of 36,9- 42,9- 62,2- 74,6- and 78,5 which can be assigned to crystal planes (111), (200), (220), (311), and (222), respectively. SEM was used to characterize the surface morphology. The morphology ranged from sphere to flower-like resulting in crystallite sizes of 28, 23, 12, and 9 nm.
Keywords: Magnesium oxide nanoparticles, Calliandra Calothyrsus, green synthesis
