التفاصيل البيبلوغرافية
| العنوان: |
Efficient electro-assisted adsorption/desorption of phosphate on MOF-derived hierarchically porous carbon electrode. |
| المؤلفون: |
He, Mingming1,2 (AUTHOR), Zhang, Peng1,2 (AUTHOR), Zhang, Xueli1,2 (AUTHOR), Li, Fukuan1,2 (AUTHOR), Huo, Silu1,2 (AUTHOR), Fang, Dezhi1,2 (AUTHOR), Liang, Bolong3 (AUTHOR), Li, Kexun1,2 (AUTHOR) likx@nankai.edu.cn |
| المصدر: |
Journal of Cleaner Production. Aug2022, Vol. 361, pN.PAG-N.PAG. 1p. |
| مستخلص: |
Electro-assisted adsorption (EAA) is an environmentally friendly, effective and economical method for phosphate removal, and its electrosorption capacity is strongly dependent on the electrode material. Herein, we fabricated a MOF-derived hierarchically porous carbon (ZrMC) electrode for the selective electrosorption of phosphate. At 1 V condition, the ZrMC electrode demonstrated a high removal rate of 2.08 mg g−1 min−1 within 40 min, and the maximum electrosorption capability of 163.30 mg g−1 according to Langmuir isothermal model. The excellent performance for phosphate electrosorption was attributed to the hierarchically porous structure, excellent conductivity, and abundant active centers. The electrosorption data was well-fitted with the pseudo-second-order kinetics model. Interestingly, by applying reversed voltage, the ZrMC electrode exhibited an outstanding desorption capacity of 88.33% after ten cycles. Finally, the corresponding electrosorption mechanism was comprehensively clarified by both the Fourier transform infrared spectrometer (FTIR) and X-ray photoelectron spectrometer (XPS) measurements. Our work implies that the ZrMC electrode has a promising potential for highly efficient removal and recovery of phosphate. [Display omitted] • The ZrMC derived from UiO-66 was utilized in the EAA field for phosphate uptake. • The ZrMC showed a high electrosorption rate of 2.08 mg g−1 min−1 at 1 V condition. • The ZrMC provided a stable hierarchical structure and well-dispersed active centers. • The desorption efficiency maintained more than 88% after ten cycles. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
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