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چکیده
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In this work, copper oxide nanoparticles were efficiently synthesized using a simple and environmentally friendly sol-gel process and their degradability of reactive blue 21 dye and antibacterial properties were studied. To characterize the synthesized CuO nanoparticles, powder X-ray diffraction (XRD), Brunauer Emmett Teller (BET), transmission electron microscope (TEM), field emission scanning electron microscopy (FESEM), and differential reflectance spectroscopy (DRS) analysis were employed. The particle size was determined using the TEM technique to be roughly 25 nm. The Tauc relation was used to calculate the optical band gap of CuO nanoparticles from the absorption spectra, which was found to be approximately 2.04 eV. The CuO NPs showed good photocatalysis activity towards the Reactive Blue 21 dye as an organic pollutant such that 86% of RB21 was removed in 60 min in room condition and visible light region. CuO NPs were evaluated for antibacterial efficacy against Gram negative (Escherichia coli, Salmonella typhimurium, Proteus mirabilis, Pseudomonas aeruginosa) and Gram positive (Staphylococcus aureus, Enterococcus faecalis) bacteria.
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