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Analytical and Bioanalytical Electrochemistry، جلد ۱۶، شماره ۵، صفحات ۳۸۹-۴۰۴
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عنوان انگلیسی Green Synthesis of CuO-ZnO Nanocomposite using Citrus Sinensis Fruit Peel Extract for Electrochemical Detection of Hydrogen Peroxide
چکیده انگلیسی مقاله In this work, CuO nanoparticles (NPs), ZnO NPs, and CuO-ZnO nanocomposites (NCs) were synthesized using Citrus sinensis fruit peel extract. Then, carbon paste electrodes modified with each nanomaterial (CuO-CPE, ZnO-CPE, and CuO-ZnO-CPE) was fabricated for the electrochemical detection of hydrogen peroxide (H2O2). The prepared metal oxide nanomaterials were characterized using Ultraviolet-Visible (UV-Vis) spectroscopy, Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), and scanning electron microscopy (SEM). The average crystallite sizes for nanomaterials composed of CuO and ZnO NPs and CuO-ZnO NCs were 32.2 nm, 31.7 nm, and 35.38 nm, respectively. A carbon paste electrode modified with CuO-ZnO NCs (CuO-ZnO-CPE) was used to detect H2O2. At CuO-ZnO-CPE, a cathodic peak for H2O2 was seen at about 0.0 V. Under optimum experimental conditions, the developed electrode showed a wide linear range from 0.5 μM to 200.0 μM with a limit of detection (LOD) of about 0.32 μM. The synthesized electrode also showed increased stability, adequate selectivity, and repeatability.   
کلیدواژه‌های انگلیسی مقاله Citrus sinensis,CuO nanoparticles,ZnO nanoparticles,CuO-ZnO nanocomposite,Electrochemical detection,Hydrogen peroxide
نویسندگان مقاله Megersa Gudisa Gudisa |
Department of Chemistry, College of Natural Sciences, Jimma University, P.O. Box 378, Jimma, Ethiopia

Ebisa Mirete Deresa |
Department of Chemistry, College of Natural Sciences, Jimma University, P.O. Box 378, Jimma, Ethiopia

Gebru Gebretsadik |
Department of Chemistry, College of Natural Sciences, Jimma University, P.O. Box 378, Jimma, Ethiopia

Guta Gonfa |
Department of Chemistry, College of Natural Sciences, Jimma University, P.O. Box 378, Jimma, Ethiopia

Shimeles Addisu Kitte |
Department of Chemistry, College of Natural Sciences, Jimma University, P.O. Box 378, Jimma, Ethiopia

نشانی اینترنتی https://www.abechem.com/article_713500_480e7bc120a92e3827f0385e5b87ad00.pdf
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