Novel electrochemical sensing platform based on palygorskite nanorods/Super P Li carbon nanoparticles-graphitized carbon nanotubes nanocomposite for sensitive detection of niclosamide |
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| Affiliation: | 1. Henan Institute of Science and Technology, Xinxiang, 453003, China;2. Sumy National Agrarian University, Sumy, 40021, Ukraine;3. State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, China;4. School of Resources, Environment and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University, Nanning, 530004, China;1. Key Laboratory for Nonferrous Vacuum Metallurgy of Yunnan Province, Kunming University of Science and Technology, Kunming, 650093, China;2. National Engineering Research Center of Vacuum Metallurgy, Kunming University of Science and Technology, Kunming, 650093, China;3. Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, China;4. Fachgebiet Angewandte Nanophysik, Institut für Physik & ZMN MacroNano (ZIK), Technische Universität Ilmenau, Ilmenau, 98693, Germany;1. Materials Science Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India;2. Glass and Advanced Materials Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India;3. Accelerator and Pulse Power Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India;4. Technical Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India;5. Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India;6. Homi Bhabha National Institute, Anushakti Nagar, Mumbai, 400 094, India;1. Programa de Nanociencias y Nanotecnología, CINVESTAV- IPN, Av. IPN 2508 Col. San Pedro Zacatenco, 07360, Ciudad de, Mexico;2. Institute of Molecules & Materials of Le Mans (IMMM) - UMR CNRS 6283, Le Mans Université, 72000, Le Mans, France;3. Departamento de Ingeniería Eléctrica (SEES), CINVESTAV- IPN, Av. IPN 2508 Col. San Pedro Zacatenco, 07360, Ciudad de, Mexico;4. J. Mike Walker ‘66 Department of Mechanical Engineering, Texas A&M University, College Station, TX, 77843, USA |
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| Abstract: | We reported an one-pot ultrasonic-assisted method for the preparation of palygorskite nanorods/Super P Li carbon nanoparticles-graphitized carbon nanotubes (PNRs/SPCNPs-g-CNTs) nanocomposite, which was used to modify the glassy carbon electrode (GCE) for the fabrication of PNRs/SPCNPs-g-CNTs/GCE sensor. For the PNRs/SPCNPs-g-CNTs nanocomposite, PNRs with good stability presented large specific surface area and high adsorption, which promoted the enrichment of NA molecules on the electrode surface. SPCNPs with pearl chain-like nanostructure exhibited good electrical conductivity, and the combination of SPCNPs and g-CNTs with high graphitization degree formed an interconnected carbon conductive network with excellent electrical conductivity, which enhanced the charge transport efficiency. Moreover, the interconnected carbon conductive network of SPCNPs-g-CNTs not only promoted the dispersion degree of PNRs but also made up for the poor conductivity property of PNRs. When used for the detection of niclosamide (NA), an acceptable limit of detection (3.6 nM) was achieved at the PNRs/SPCNPs-g-CNTs/GCE sensor in linear NA concentration range of 0.01–10 μM. The PNRs/SPCNPs-g-CNTs/GCE sensor exhibited good reproducibility, repeatability, and anti-interference performance. For the practicability measurement, the fabricated sensor showed good practicability with satisfactory recoveries (97.0–102.7%) and low RSD values of 0.99–4.78% for the detection of NA in tap water and lake water samples. |
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| Keywords: | Palygorskite nanorods Super P Li carbon nanoparticles-graphitized carbon nanotubes conductive network Nanocomposite Electrochemical sensor Niclosamide detection |
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