One-pot green hydrothermal synthesis of bio-derived nitrogen-doped carbon sheets embedded with zirconia nanoparticles for electrochemical sensing of methyl parathion |
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| Affiliation: | 1. Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 106, Taiwan, ROC;2. Institute of Biochemical and Biomedical Engineering, National Taipei University of Technology, No.1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, ROC;3. School of Chemistry, Bharathidasan University, Tiruchirappalli 620024, Tamil Nadu, India;4. Department of Surgery, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan, ROC;1. Laboratório de Sensores Eletroquímicos (LabSensE), Departamento de Química, Universidade Federal do Paraná (UFPR), CEP 81.531-980 Curitiba, PR, Brazil;2. Laboratório de Processos e Projetos Ambientais (LabPPAm), Departamento de Química, Universidade Federal do Paraná (UFPR), CEP 81.531-980 Curitiba, PR, Brazil;3. Instituto Nacional de Ciência e Tecnologia de Energia e Ambiente (INCT E&A/CNPq), Brazil;1. College of Environment Science and Engineering, State Environment Protection Engineering Center For Pollution Treatment and Control in Textile Industry, Donghua University, 201620 Shanghai, People''s Republic of China;2. Research Center for Analysis & Measurement, Donghua University, 201620 Shanghai, People''s Republic of China;1. Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, No.368 Youyi Avenue, Wuchang, Wuhan 430062, China;2. Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, No. 368 Youyi Avenue, Wuchang, Wuhan 430062, China;3. Key Laboratory of Tobacco Chemistry of Yunnan Province, R&D Center of China Tobacco Yunnan Industrial Co., Ltd., Kunming 650367, China |
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| Abstract: | We report a simple, economical and green one-pot hydrothermal strategy to synthesize the bio-derived nitrogen-doped carbon sheets (ONCSs) embedded with zirconia nanoparticles (ZrO2NPs) with orange juice as carbon source and solvent. The ONCSs-ZrO2NPs composite was further applied in the decoration of glassy carbon electrode (GCE) for electrochemical sensing of methyl parathion. The orange juice-derived ONCSs with graphene-like micromorphology showed good electrical conductivity, large specific surface area, and nitrogen functional groups. They could accelerate the electron transport, provide sufficient electrolyte-electrode interface, and improve the surface wettability, thus forming a suitable microenvironment for the redox reaction of MP. The embedded ZrO2NPs in graphene-like ONCSs possessed a strong affinity toward the phosphorus groups on MP molecules, which could promote the preconcentration of MP in the interface of the fabricated sensor and electrolyte. Benefitting from the synergistic effect of ONCSs and ZrO2NPs/GCE, the ONCSs-ZrO2NPs/GCE sensor exhibited excellent peak current response towards MP with a linear detection range of 0.01–15 μg mL?1 and a low detection limit of 0.115 ng mL?1. Furthermore, the ONCSs-ZrO2NPs/GCE sensor presented good capability to investigate the MP levels in romaine and kiwifruit juices with satisfactory recoveries. This work provides a novel and green one-step approach in the development of carbon-based composite materials for high-performance MP electrochemical sensors. |
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| Keywords: | One-pot hydrothermal synthesis Methyl parathion sensor Synergistic effect Orange juice |
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