Biomass porous carbon prepared by endogenous template for electrochemical sensing of hesperetin

• Published in: Journal of materials science. Materials in electronics Vol. 33; no. 14; pp. 11446 - 11454
• Main Authors: Lu, Youluan, Mu, Xinwei, Liu, Yaopeng, Shi, Zhen, Zheng, Yin, Huang, Wensheng, Lou, Fangming
• Format: Journal Article
• Language: English
• Published: New York Springer US 01.05.2022; Springer Nature B.V
• Subjects: Carbon; Characterization and Evaluation of Materials; Chemical sensors; Chemistry and Materials Science; Electrochemical analysis; Electrochemical impedance spectroscopy; Electron microscopy; Electrons; Herbal medicine; Human performance; Materials Science; Microscopy; Optical and Electronic Materials; Photoelectrons; Porous materials; Pyrolysis; Raman spectra; Spectrum analysis
• ISSN: 0957-4522; 1573-482X
• DOI: 10.1007/s10854-022-08117-9

Through simple bioconcentration, salt molecules of NaCl and KCl were introduced into lotus root, then a class of porous carbon materials (CPLR) with 3D pore structure based on the as-prepared lotus root was prepared by direct pyrolysis under different temperature. The CPLR was characterised by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and Raman spectra (Raman). In addition, the electrochemical performance of the CPLR-based sensors was examined by electrochemical impedance spectroscopy and cyclic voltammetry. Under the first-rank experimental conditions, the response current increased linearly with the concentration of hesperetin in the range from 0.05 to 100.0 μmol/L, and the minimum detectability was calculated to be 0.011 μmol/L ( S / N  = 3). The sensor in Chinese herbal medicine buddleja officinalis maxim and healthy human urine samples performed well.