Synthesis of nitrogen and sulfur co-doped yolk-shell porous carbon microspheres and their application for Pb(II) detection in fish serum
- School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055 (China)
- Laboratory of Environmental Science and Technology, The Xinjiang Technical Institute of Physics and Chemistry, Key Laboratory of Functional Materials and Devices for Special Environments, Chinese Academy of Sciences, Urumqi 830011 (China)
Highlights: • N, S-YSPCMS was obtained via simple silica templating and pyrolysis method. • N, S-YSPCMS shows spherical morphology, porous structure and high N, S contents. • N, S-YSPCMS based electrochemical sensor shows good performance in Pb(II) analysis. • N, S-YSPCMS based sensor is feasible in detection of Pb(II) in fish serum. - Abstract: Nitrogen (N) and sulfur (S) co-doped carbonaceous material has shown remarkably improved performance in electrocatalysis, supercapacitor, and so on. While, the application of N, S co-doped carbon in electrochemical sensor was less investigated. Herein, N, S co-doped yolk-shell porous carbon microspheres (N, S-YSPCMSs) were synthesized by silica templating strategy and high-temperature pyrolysis method. The as-prepared N, S-YSPCMSs exhibited spherical morphologies, porous structures and high N, S-doping contents. Owing to the synergetic effect of the well-dispersed N, S-dopants, good conductivity of carbon skeleton, high surface area and pore volume of the microspheres, the N, S-YSPCMSs prepared at 900 °C showed good electrochemical performance for Pb(II) and with a linear range of 4–160 μg L{sup −1}, the limit of detection is 0.49 μg L{sup −1} (S/N = 3). The electrochemical sensor was consequently applied in detecting Pb(II) in fish serum samples with satisfying recoveries, indicating the N, S-YSPCMSs-900 are promising electrode components for electroanalysis.
- OSTI ID:
- 22890227
- Journal Information:
- Journal of Solid State Chemistry (Print), Vol. 266; Other Information: © 2018 Elsevier Inc. All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0022-4596
- Country of Publication:
- Netherlands
- Language:
- English
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