Formation of Co3O4 Nanoparticles Using Moringa oleifera Leaves Extract through Two Phases System of Hexane-Water and their Photocatalytic Activity
2020 ◽
Vol 982
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pp. 9-13
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Keyword(s):
Ft Ir
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Co3O4 nanoparticles (NP) have been successfully formed using Moringa oleifera leaves extract (MLE) through two phases’s system of hexane–water. Co3O4 NP was further characterized using UV-Vis DRS, FT-IR, TEM, SEM-EDX, XRD and UV-Vis spectrophotometer. FTIR spectra of Co3O4 NP had strong absorption bands at wavenumbers of 538 and 670 cm-1. The bandgap energy value of Co3O4 NP was 1.43 eV. In addition, the characterization of SEM and TEM showed that the morphology of Co3O4 NP was in the spheres form with particle sizes around 73 nm. The photocatalytic activity of Co3O4 NP was carried out for methylene blue (MB) photodegradation. Co3O4 NP had photodegradation activity against MB under visible light irradiation of 91% for 120 min.