Electrochemical sensor based on green-synthesized iron oxide nanomaterial modified carbon paste electrode for Congo red electroanalysis and capacitance performance

التفاصيل البيبلوغرافية
العنوان: Electrochemical sensor based on green-synthesized iron oxide nanomaterial modified carbon paste electrode for Congo red electroanalysis and capacitance performance
المؤلفون: Mary Sieugaing Tamwa, Jacques Romain Njimou, Bruno Boniface Nguelo, Charles Péguy Nanseu-Njiki, Ephraim Vunain, Bankim Chandra Tripathy, Emmanuel Ngameni
بيانات النشر: Taylor & Francis, 2022.
سنة النشر: 2022
مصطلحات موضوعية: Mechanics of Materials, Mechanical Engineering, General Materials Science, Condensed Matter Physics
الوصف: In this study, a facile protocol was used to convert non-valuable orange peels (OP) waste into a new sensing iron oxide orange-peel nanomaterial (FeOP). The presence of iron oxide nanoparticles in the modified OP was confirmed by physicochemical characterisations including Fourier-transform infrared spectroscopy, X-ray diffractometry, thermogravimetry, and scanning electron microscopy-energy dispersive X-ray. FeOP was used to modify a carbon paste electrode (CPE/FeOP) which displayed a significant increase in specific capacitance of 2939 F.g−1, two folds higher than that obtained with CPE at 10 m.s−1 in NaCl. The electroanalysis of Congo red (CR) in aqueous solutions using CPE/FeOP displayed detection limits of 2.8 × 10−7 mol.L−1 and 8.2 × 10−7 mol.L−1 respectively in deionised and spring waters, in the linear range of 5 to 55 µM. CPE/FeOP electrochemical sensor is therefore suitable for the determination of Congo red in wastewater.
DOI: 10.6084/m9.figshare.21186554
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e3fbc692d370a00fc3b6b68fbe0f1de
Rights: OPEN
رقم الانضمام: edsair.doi.dedup.....1e3fbc692d370a00fc3b6b68fbe0f1de
قاعدة البيانات: OpenAIRE
الوصف
DOI:10.6084/m9.figshare.21186554