Abstract
Discarded fruit peels caused pollution problem and reused of waste product reduces pollution and sustain environmental balance. In most cases, fruits peels are land filled or composted which lead to environmental problems like methane emission to the atmosphere due to anaerobic digestion and leachate formation, which percolates into the bottom of the earth during rainfall. This communication reports on the synthesis of copper oxide nanoparticles (CuO NPs) using citrus maxima peel. The prepared CuO NPs were characterized by XRD, SEM, EDS, UV–visible spectroscopy, FTIR and PL. The characterization results confirmed that the prepared CuO NPs have a monoclinic crystalline structure with a spherical shape and the average crystallite size of CuO NPs was about 20 nm. The optical band gap (Eg) of CuO NPs calculated from UV–Visible diffuse reflectance spectroscopy was 1.5eV. The photo response V-I characteristics of CuO NPs showed good photo response under illumination conditions, which might be due to the maximum number of exciting photoelectrons due to illumination.
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