Copper oxide nanoparticles: Synthesis, characterization, optical property and its application for the removal of methyl green dye

Subject Areas : Journal of Nanoanalysis

Aliakbar  Dehno Khalaji ¹ (Department of Chemistry, Faculty of Science, Golestan University, Gorgan, Iran)

Received: 2021-10-05 Accepted : 2021-10-05 Published : 2021-06-01

Keywords: nanoparticles, Adsorption, Copper oxide, Removal of dyes,

Abstract :

In this paper, nanoparticles of copper oxide (CuO) were synthesized using solid-statethermal decomposition of the new copper precursor at 600 ºC for 3 h. Thecopper precursor was prepared from the mixture of CuCl2.6H2O and benzoic acidin H2O in the presence of KOH. Nanoparticles of copper oxide were characterizedby Fourier transform infer-red (FT-IR), UV-Vis, and photoluminescence (PL)spectroscopy X-ray powder diffraction (XRD) and transmission electronmicroscopy (TEM). All results confirmed the preparation of the pure phase of CuOnanoparticles. In addition, the adsorption of methyl green in an aqueous solution ofcopper oxide nanoparticles as adsorbent was studied at various parameters suchas adsorbent dosage and agitation time. It was found that methyl green dyeremoval increased by adsorbent dosage (0-30 mg) and contact time (0-120 min).This research revealed that the copper oxide nanoparticles could be used as asuitable adsorbent for the removal of various organic dyes from aqueous solutions.