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    Journals >Journal of Inorganic Materials >Volume 35 >Issue 3 >Page 309 > Article
    • Journal of Inorganic Materials
    • Vol. 35, Issue 3, 309 (2020)
    C@K2Ti6O13 Hierarchical Nano Materials: Effective Adsorption Removal of Cr(VI)
    Mingyu ZHU, Dezhe FAN, Bei LIU, Shuya LIU..., Ming FANG* and Xiaoli TAN|Show fewer author(s)
    Author Affiliations
  • MOE Key Laboratory of Resources and Environmental System Optimization, North China Electric Power University, Beijing 102206, China
    • show less
    DOI: 10.15541/jim20190370 Cite this Article
    Mingyu ZHU, Dezhe FAN, Bei LIU, Shuya LIU, Ming FANG, Xiaoli TAN. C@K2Ti6O13 Hierarchical Nano Materials: Effective Adsorption Removal of Cr(VI)[J]. Journal of Inorganic Materials, 2020, 35(3): 309 Copy Citation Text show less
    (a) SEM image, (b) TEM image, (c) HRTEM image, (d) XRD pattern, (e) N2 adsorption-desorption isotherm and (f) TGA- DTG curves of C@K2Ti6O13 hierarchical nanostructures
    1. (a) SEM image, (b) TEM image, (c) HRTEM image, (d) XRD pattern, (e) N2 adsorption-desorption isotherm and (f) TGA- DTG curves of C@K2Ti6O13 hierarchical nanostructures
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    FT-IR spectra of the samples annealed at different temperatures
    2. FT-IR spectra of the samples annealed at different temperatures
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    Effect of pH and ionic strength on Cr(VI) adsorption
    3. Effect of pH and ionic strength on Cr(VI) adsorption
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    (a) Effect of contact time on Cr(VI) adsorption onto C@K2Ti6O13 HNMs and (b) corresponding fitting curve by the pseudo-second-order kinetic model
    4. (a) Effect of contact time on Cr(VI) adsorption onto C@K2Ti6O13 HNMs and (b) corresponding fitting curve by the pseudo-second-order kinetic model
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    (a) Adsorption isotherms, (b) Langmuir isotherm model, (c) Freundlich isotherm model, and (d) plot of lnKdvs 1/T of the Cr(VI) on C@K2Ti6O13
    5. (a) Adsorption isotherms, (b) Langmuir isotherm model, (c) Freundlich isotherm model, and (d) plot of lnKdvs 1/T of the Cr(VI) on C@K2Ti6O13
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    T/KLangmuir modelFreundlich model
    qmbR2nKfR2
    298370.0560.972.72.20.97
    313370.0520.952.72.20.93
    328290.0660.943.22.20.89
    Table 1. Parameters simulated by Langmuir and Freundlich models of C@K2Ti6O13
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    ΔHθ/(kJ·mol-1)ΔSθ/(kJ·K-1·mol-1)ΔGθ/(kJ·mol-1)
    298 K313 K323 K
    0.0750.0124-4.77-4.74-4.75
    Table 2. Thermodynamic parameters for Cr(VI) adsorption
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    Abstract
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    References (27)
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    Mingyu ZHU, Dezhe FAN, Bei LIU, Shuya LIU, Ming FANG, Xiaoli TAN. C@K2Ti6O13 Hierarchical Nano Materials: Effective Adsorption Removal of Cr(VI)[J]. Journal of Inorganic Materials, 2020, 35(3): 309
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