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Journal of Inorganic Materials, Volume. 36, Issue 5, 527(2020)

Performance of Nitrogen-doped Hollow Carbon Spheres as Oxidase Mimic

Yanning ZHENG1,2, Junrong JI3, Xueling LIANG1, Zhengjie LAI1, Qifan CHENG1, and Dankui LIAO1,2、*
Author Affiliations
  • 11. School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
  • 22. Guangxi Cooperative Innovation Centre for Calcium-based Materials (GCICCM), Guangxi Engineering Academy for Calcium Carbonate Industry, Guangxi University, Nanning 530004, China
  • 33. Guangxi Cooperative Innovation Centre for Calcium-based Materials (GCICCM), Chongzuo South Cement Co. LTD, Chongzuo 532201, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (10)
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    References (36)
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    Figures & Tables(10)
    Morphologies and element mappings of N-HCSs
    1. Morphologies and element mappings of N-HCSs

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    SEM images of (a) N-HCS and (b) N-HCS-1, and TEM images of (c) CaCO3@PDA and (d) N-HCS
    2. SEM images of (a) N-HCS and (b) N-HCS-1, and TEM images of (c) CaCO3@PDA and (d) N-HCS

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    (a) XPS full spectra of N-HCS and N-HCS-1; N1s spectra of (b) N-HCS and (c) N-HCS-1; (d) N species contents of N-HCS and N-HCS-1
    3. (a) XPS full spectra of N-HCS and N-HCS-1; N1s spectra of (b) N-HCS and (c) N-HCS-1; (d) N species contents of N-HCS and N-HCS-1

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    (a) Nitrogen absorption-desorption isotherm curves of N-HCS and N-HCS-1, (b) HK model corresponding pore size distribution curves of N-HCS and N-HCS-1
    4. (a) Nitrogen absorption-desorption isotherm curves of N-HCS and N-HCS-1, (b) HK model corresponding pore size distribution curves of N-HCS and N-HCS-1

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    (a) UV-Vis absorption spectra of different systems, and effects of (b) catalyst concentration, (c) pH and (d) temperature on the oxidase-like activity of N-HCSs
    5. (a) UV-Vis absorption spectra of different systems, and effects of (b) catalyst concentration, (c) pH and (d) temperature on the oxidase-like activity of N-HCSs

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    Steady-state kinetic assay of N-HCS and N-HCS-1
    6. Steady-state kinetic assay of N-HCS and N-HCS-1

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    (a) Absorption spectra of the solution containing TMB and N-HCS and N-HCS-1 under N2-saturated conditions, and effect of scavengers (b) IPA, (c) CAT and (d) SOD on the catalytic oxidation of TMB by the N-HCS and N-HCS-1
    7. (a) Absorption spectra of the solution containing TMB and N-HCS and N-HCS-1 under N2-saturated conditions, and effect of scavengers (b) IPA, (c) CAT and (d) SOD on the catalytic oxidation of TMB by the N-HCS and N-HCS-1

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    (a) ESR spectra and (b) catalytic mechanism diagram for the oxidase-like activity of the N-HCSs
    8. (a) ESR spectra and (b) catalytic mechanism diagram for the oxidase-like activity of the N-HCSs

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    • Table 1. Pore structure parameters of N-HCS and N-HCS-1

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      Table 1. Pore structure parameters of N-HCS and N-HCS-1

      SampleSpecfic suface/(m2•g-1)Vt/(cm3•g-1)Vm/(cm3•g-1)Sm/(m2•g-1)(Sm/St)/%
      LangmuirBET
      N-HCS685.6490.10.6510.109230.5145.49
      N-HCS-1730.0518.40.7320.111228.1644.01

    • Table 2. Comparison of the Km and Vmax between N-HCSs and other oxidase-like

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      Table 2. Comparison of the Km and Vmax between N-HCSs and other oxidase-like

      CatalystSubstrateKm/(mmol•L-1)Vmax/(×10-8, mol•L-1•s-1)Ref.
      N-PCSTMB0.0955.20[4]
      His@AuNCsTMB0.0416.21[31]
      Pt Au DNPsTMB0.222.82[32]
      Acr+-MesTMB0.1292.68[33]
      N-HCSTMB0.10494.69This work
      N-HCS-1TMB0.08255.98This work
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    Yanning ZHENG, Junrong JI, Xueling LIANG, Zhengjie LAI, Qifan CHENG, Dankui LIAO. Performance of Nitrogen-doped Hollow Carbon Spheres as Oxidase Mimic[J]. Journal of Inorganic Materials, 2020, 36(5): 527

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    Paper Information

    Category: RESEARCH ARTICLE

    Received: Jul. 4, 2020

    Accepted: --

    Published Online: Nov. 25, 2021

    The Author Email: Dankui LIAO (liaodk@gxu.edu.cn)

    DOI:10.15541/jim20200396

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology