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Journal of Inorganic Materials, Volume. 36, Issue 3, 283(2021)

Preparation of TiO2/Ti3C2Tx Composite for Hybrid Capacitive Deionization

Wen XI and Haibo LI*
Author Affiliations
  • Ningxia Key Laboratory of Photovoltaic Materials, Ningxia University, Ningxia 750021, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (10)
    Equations (4)
    References (46)
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    Figures & Tables(10)
    Calcination process of Ti3AlC2
    1. Calcination process of Ti3AlC2

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    Synthesis flowchart of TiO2/Ti3C2Tx composites
    2. Synthesis flowchart of TiO2/Ti3C2Tx composites

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    SEM images of Ti3AlC2(A), Ti3C2Tx(B, C), TiO2/Ti3C2Tx-350(D), TiO2/Ti3C2Tx-450(E) and TiO2/Ti3C2Tx-550(F), HRTEM (G) and elemental mapping(H, I) of TiO2/Ti3C2Tx-450
    3. SEM images of Ti3AlC2(A), Ti3C2Tx(B, C), TiO2/Ti3C2Tx-350(D), TiO2/Ti3C2Tx-450(E) and TiO2/Ti3C2Tx-550(F), HRTEM (G) and elemental mapping(H, I) of TiO2/Ti3C2Tx-450

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    XRD patterns (A) of various samples, XRD patterns (B, C) of TiO2/Ti3C2Tx calcined at different temperatures, Raman spectra (D), N2 adsorption-desorption isotherms (E) and pore size distributions (F) of various samples
    4. XRD patterns (A) of various samples, XRD patterns (B, C) of TiO2/Ti3C2Tx calcined at different temperatures, Raman spectra (D), N2 adsorption-desorption isotherms (E) and pore size distributions (F) of various samples

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    XPS spectra of Ti3C2Tx, TiO2/Ti3C2Tx-350, TiO2/Ti3C2Tx-450 and TiO2/Ti3C2Tx-550
    5. XPS spectra of Ti3C2Tx, TiO2/Ti3C2Tx-350, TiO2/Ti3C2Tx-450 and TiO2/Ti3C2Tx-550

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    CV curves(A), GCD(B) and EIS(C) of Ti3C2Tx, TiO2/Ti3C2Tx-350, TiO2/Ti3C2Tx-450 and TiO2/Ti3C2Tx-550 with inset in (C) representing the equivalent circuit
    6. CV curves(A), GCD(B) and EIS(C) of Ti3C2Tx, TiO2/Ti3C2Tx-350, TiO2/Ti3C2Tx-450 and TiO2/Ti3C2Tx-550 with inset in (C) representing the equivalent circuit

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    Desalination performance of TiO2/Ti3C2Tx-450‖AC device
    7. Desalination performance of TiO2/Ti3C2Tx-450‖AC device

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    SEM (A) and the enlarged (B) images of TiO2/Ti3C2Tx-450 after 20 cycling, XRD patterns(C, D) of TiO2/Ti3C2Tx-450 before and after desalting and regeneration
    8. SEM (A) and the enlarged (B) images of TiO2/Ti3C2Tx-450 after 20 cycling, XRD patterns(C, D) of TiO2/Ti3C2Tx-450 before and after desalting and regeneration

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    • Table 1. Comparison of specific surface areas, pore sizes and pore volumes of Ti3C2Tx, TiO2/Ti3C2Tx-350, TiO2/Ti3C2Tx-450 and TiO2/Ti3C2Tx-550

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      Table 1. Comparison of specific surface areas, pore sizes and pore volumes of Ti3C2Tx, TiO2/Ti3C2Tx-350, TiO2/Ti3C2Tx-450 and TiO2/Ti3C2Tx-550

      SampleSpecific surface area/(m2·g-1)Pore size/nmPore volume/(cm3·g-1)
      Ti3C2Tx8.54251.9790.111
      TiO2-Ti3C2Tx-35023.22726.3940.153
      TiO2-Ti3C2Tx-45014.63041.0050.150
      TiO2-Ti3C2Tx-55012.32440.1340.124

    • Table 2. Comparison of salt removal capacity among various CDI electrodes

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      Table 2. Comparison of salt removal capacity among various CDI electrodes

      SampleSpecific surface area/(m2·g-1)Initial conductivity/(mg·L-1)Voltage/VDesalination capacity/(mg·g-1)Ref.
      Pre-conditioned Ti3C2Tx MXene-585.0-1.2 (discharge potential)9.19[42]
      Ti3C2 MXene6.0292.51.213.00[39]
      Ar plasma modified Ti3C2Tx-500.01.426.80[43]
      LiH/HCl-etched Ti3C2Tx MXene2.1585.01.267.70[44]
      Porous Ti3C2Tx MXene293.010000.01.245.00[40]
      Porous nitrogen-doped MXene sheets(N-Ti3C2Tx)368.85000.01.243.50±1.70[45]
      TiO2/Ti3C2Tx-45014.61500.01.222.00This work
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    Wen XI, Haibo LI. Preparation of TiO2/Ti3C2Tx Composite for Hybrid Capacitive Deionization[J]. Journal of Inorganic Materials, 2021, 36(3): 283

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    Paper Information

    Category: RESEARCH PAPER

    Received: May. 8, 2020

    Accepted: --

    Published Online: Dec. 8, 2021

    The Author Email: LI Haibo (lihaibo@nxu.edu.cn)

    DOI:10.15541/jim20200243

    Topics

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