Fabrication of CuO nanoparticle/ionic liquid modified carbon paste electrode:Application for simultaneous determination of hydrazine and bisphenol A inwater samples

سال انتشار: 1395
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 448

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شناسه ملی سند علمی:

ELECTROCHEMISTRY012_108

تاریخ نمایه سازی: 5 آذر 1397

چکیده مقاله:

In the present research, we report the application of synthesized copper oxide nanoparticles toghether with n-hexyl-3-methylimidazolium hexa-fluoro-phosphate in the constructuion of the modified carbon paste electrode (CuO/NP/IL/CPE) as high sensitive electrochemical sensor for simultaneous determination of hydrazine (HY) and bisphenol A (BPA). The electrochemical properties of CuO/NP/IL/CPE was carefully studied in aqueous media, using cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), chronoamperometry and differential pulse voltammetry (DPV). The electron transfer coefficient (α), diffusion coefficient (D), and electron transfer resistant (Ret) of HY at the modified electrode were calculated. The experimental results show that, under optimized conditions, the modified electrode promoted electron transfer reaction for the oxidation of HY and BPA. The linear dynamic range were obtained in the ranges of 0.05– 150 and 0.2–175 L-1 with the detection limits (3sb/m) 0.03 and 0.1 L-1 for HY and BPA, respectively. Finally, this new sensor was used for simultaneous determination of HY and BPA in some water samples such as river water and wastewater using the standard addition method.

نویسندگان

Nader Teymoori

Electroanalytical Chemistry Research Laboratory, Department of Analytical Chemistry, Faculty of Chemistry,University of Mazandaran, Babolsar, Iran

JahanBakhsh Raoof

Electroanalytical Chemistry Research Laboratory, Department of Analytical Chemistry, Faculty of Chemistry,University of Mazandaran, Babolsar, Iran

Mohammad A Khalilzadeh

Department of Chemistry, Qaemshahr Branch, Islamic Azad University, Qaemshahr, Iran

Reza Ojani

Electroanalytical Chemistry Research Laboratory, Department of Analytical Chemistry, Faculty of Chemistry,University of Mazandaran, Babolsar, Iran