PHOTOCATALYTIC DYE DEGRADATION EFFICIENCY OF HYDROTHERMALLY SYNTHESIZED NICKEL OXIDE NANOPARTICLES

Abstract

In this present study, Nickel oxide (NiO) nanoparticles have been synthesized by hydrothermal method and characterized using X-Ray Diffraction, UV-Vis Spectroscopy, and Scanning Electron Microscopy. The result of characterization indicated that synthesized sample has a pure cubic phase of NiO with an oval shape morphology. Test of photocatalytic activity of synthesized sample towards the model contaminant dye Rhodamine B (Rh B) shows a degradation efficiency of 89% in a period of 1 hour under natural sunlight. This value showed that the synthesized NiO possess better photodegradation efficiency of Rh B dye and it showed that particles synthesized at higher temperature hold good degradation efficiency than that with low temperature.