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Journal of Inorganic Materials, Volume. 38, Issue 5, 503(2023)

Preparation of TiHAP@g-C3N4 Heterojunction and Photocatalytic Degradation of Methyl Orange

Lin WU... Minglei HU, Liping WANG*, Shaomeng HUANG and Xiangyuan ZHOU |Show fewer author(s)
Author Affiliations
  • School of Environment and Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (17)
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    References (25)
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    Figures & Tables(17)
    XRD patterns of HAP, TiHAP, g-C3N4, and TiHAP@g-C3N4
    1. XRD patterns of HAP, TiHAP, g-C3N4, and TiHAP@g-C3N4

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    FT-IR spectra of TiHAP, g-C3N4 and TiHAP@g-C3N4
    S1. FT-IR spectra of TiHAP, g-C3N4 and TiHAP@g-C3N4

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    FESEM images of (a) TiHAP, (b) g-C3N4 and (c, d) TiHAP@g-C3N4
    2. FESEM images of (a) TiHAP, (b) g-C3N4 and (c, d) TiHAP@g-C3N4

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    (a) N2 adsorption-desorption curves and (b) pore size distributions of TiHAP, g-C3N4 and TiHAP@g-C3N4
    3. (a) N2 adsorption-desorption curves and (b) pore size distributions of TiHAP, g-C3N4 and TiHAP@g-C3N4

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    UV-Vis diffuse reflectance spectra of TiHAP, g-C3N4 and TiHAP@g-C3N4
    4. UV-Vis diffuse reflectance spectra of TiHAP, g-C3N4 and TiHAP@g-C3N4

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    (a) Transient photocurrent response curves and (b) Nyquist plots of TiHAP, g-C3N4 and TiHAP@g-C3N4
    5. (a) Transient photocurrent response curves and (b) Nyquist plots of TiHAP, g-C3N4 and TiHAP@g-C3N4

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    PL spectra of TiHAP, g-C3N4 and TiHAP@g-C3N4
    6. PL spectra of TiHAP, g-C3N4 and TiHAP@g-C3N4

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    Band gap estimation of (a) TiHAP and (b) g-C3N4
    S2. Band gap estimation of (a) TiHAP and (b) g-C3N4

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    Mott-Schottky plots of (a) TiHAP and (b) g-C3N4
    S3. Mott-Schottky plots of (a) TiHAP and (b) g-C3N4

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    Effect of (a) TiHAP@g-C3N4 dosage and (b) initial pH on MO degradation
    7. Effect of (a) TiHAP@g-C3N4 dosage and (b) initial pH on MO degradation

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    Cyclic experimental results of MO degradation by TiHAP@g-C3N4
    8. Cyclic experimental results of MO degradation by TiHAP@g-C3N4

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    Effects of different radical trapping agents on MO degradation
    9. Effects of different radical trapping agents on MO degradation

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    Schematic mechanism of MO degradation process by TiHAP@g-C3N4 under UV light irradiation
    10. Schematic mechanism of MO degradation process by TiHAP@g-C3N4 under UV light irradiation

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    Change of methyl orange concentration and TOC in solution with TiHAP@g-C3N4 dosage of 0.5 g/L and pH 5
    S4. Change of methyl orange concentration and TOC in solution with TiHAP@g-C3N4 dosage of 0.5 g/L and pH 5

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    (a) XRD patterns and (b) FT-IR spectra of TiHAP@g-C3N4 before (fresh) and after (used) photocatalytic reactions
    S5. (a) XRD patterns and (b) FT-IR spectra of TiHAP@g-C3N4 before (fresh) and after (used) photocatalytic reactions

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    • Table 1. BET specific surface area and pore structure of TiHAP, g-C3N4 and TiHAP@g-C3N4

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      Table 1. BET specific surface area and pore structure of TiHAP, g-C3N4 and TiHAP@g-C3N4

      SampleSBET/(m2·g-1) Pore volume/(cm3·g-1) Average pore/nm
      TiHAP46.020.136811.89
      g-C3N474.990.13707.30
      TiHAP@g-C3N4107.920.310711.52

    • Table 2. Band position of TiHAP and g-C3N4

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      Table 2. Band position of TiHAP and g-C3N4

      SampleBand gap energy/eVConduction band edge/V(vs. NHE) Valence band gap/V(vs. NHE)
      TiHAP3.88-0.703.18
      g-C3N42.90-1.091.82
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    Lin WU, Minglei HU, Liping WANG, Shaomeng HUANG, Xiangyuan ZHOU. Preparation of TiHAP@g-C3N4 Heterojunction and Photocatalytic Degradation of Methyl Orange [J]. Journal of Inorganic Materials, 2023, 38(5): 503

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    Paper Information

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    Received: Jul. 15, 2022

    Accepted: --

    Published Online: Oct. 17, 2023

    The Author Email: WANG Liping (wlpcumt@126.com)

    DOI:10.15541/jim20220413

    Topics

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