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Analytical and Bioanalytical Electrochemistry، جلد ۱۷، شماره ۶، صفحات ۴۲۸-۴۴۵
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| عنوان فارسی |
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| چکیده فارسی مقاله |
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| کلیدواژه‌های فارسی مقاله |
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| عنوان انگلیسی |
Eco-Friendly Green Synthesis of Reduced Graphene Oxide as An Electrocatalytic Platform for The Simultaneous Detection of Cd(II) and Pb(II) |
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| چکیده انگلیسی مقاله |
A sensitive and reliable technique for monitoring lead and cadmium using a reduced graphene oxide-modified glassy carbon electrode (rGO/GCE) and a wireless potentiostat has been developed. In this study, rGO was synthesized employing green tea extract as a reducing and stabilizing agent. The initial glassy carbon electrode was electrochemically activated in a 0.5 mol L-1 nitric acid solution and then coated with rGO by the drop-casting method, which increased the effective surface area and enhanced sensitivity. The rGO-modified glassy carbon electrode was employed to quantify Cd(II) and Pb(II) in an acetate buffer at pH 5 using differential pulse voltammetry. Under optimal conditions, the peak currents of Cd(II) and Pb(II) exhibited good linear relationships with their concentrations in the ranges of 2.4 to 12.5 µmol L⁻¹ for Cd(II) and 1.5 to 6.8 µmol L⁻¹ for Pb(II), with detection limits of 1.1 µmol L⁻¹ and 0.88 µmol L⁻¹, respectively. The rGO/GCE was applied to analyze metal ions in simulated battery samples, demonstrating reliability and accuracy comparable to atomic absorption spectroscopy. |
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| کلیدواژه‌های انگلیسی مقاله |
Cadmium,Lead,Reduced graphene oxide,Green tea,Green synthesis |
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| نویسندگان مقاله |
Thu Hương Nguyen |
Department of Analytical Chemistry, Faculty of Chemistry, University of Science, Ho Chi Minh City, 227 Nguyen Van Cu, District 5, Ho Chi Minh City, 70000, Vietnam
Tieu My Pham |
Department of Analytical Chemistry, Faculty of Chemistry, University of Science, Ho Chi Minh City, 227 Nguyen Van Cu, District 5, Ho Chi Minh City, 70000, Vietnam
Minh Huy Do |
Department of Analytical Chemistry, Faculty of Chemistry, University of Science, Ho Chi Minh City, 227 Nguyen Van Cu, District 5, Ho Chi Minh City, 70000, Vietnam
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| نشانی اینترنتی |
https://www.abechem.com/article_725947_26bb264c4d3bf6238b8e0cf50e709b63.pdf |
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| زبان مقاله منتشر شده |
en |
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