PEI grafted defective MOF-808 for enhanced boron removal

Xiaoyu Wang; Hanlin Shao; Zhihao Chen; Xiaoshuang Yin; Yun Chen; Ying Liu; Wenzhong Yang

doi:10.1016/j.seppur.2024.126293

PEI grafted defective MOF-808 for enhanced boron removal

Xiaoyu Wang, Hanlin Shao, Zhihao Chen, Xiaoshuang Yin, Yun Chen, Ying Liu, Wenzhong Yang

School of Chemistry and Moleculai Engineering

Nanjing Tech University

Research output: Contribution to journal › Article › peer-review

23 Scopus citations

Abstract

Herein, we presented a facile method for enhanced boron removal based on PEI-grafted defective MOF-808 (D-MOF-808/PEI). The rich Zr–OH bonds, amino-functionalized surface, and exposed metal defects of D-MOF-808/PEI endow it with the high adsorption capacity of boron. Due to the ligand exchange at metal defects and boron-imine/amine groups complexation, D-MOF-808/PEI exhibits exceptional selectivity for boron with the saturation adsorption of 95.30 mmol·g⁻¹ at 45 °C. Additionally, negligible interference from other coexistent ions and excellent reusability promote the application of D-MOF-808/PEI practically for the rapid and high selectivity removal of boron from complex environmental samples. This work furnishes a promising strategy for boron contamination and expands the application potential of defective MOF-based adsorbents for environmental remediation.

Original language	English
Article number	126293
Journal	Separation and Purification Technology
Volume	336
DOIs	https://doi.org/10.1016/j.seppur.2024.126293
State	Published - 25 May 2024

Keywords

Amino-functionalized
Boron removal
Defect engineering
MOF-808

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title = "PEI grafted defective MOF-808 for enhanced boron removal",

abstract = "Herein, we presented a facile method for enhanced boron removal based on PEI-grafted defective MOF-808 (D-MOF-808/PEI). The rich Zr–OH bonds, amino-functionalized surface, and exposed metal defects of D-MOF-808/PEI endow it with the high adsorption capacity of boron. Due to the ligand exchange at metal defects and boron-imine/amine groups complexation, D-MOF-808/PEI exhibits exceptional selectivity for boron with the saturation adsorption of 95.30 mmol·g−1 at 45 °C. Additionally, negligible interference from other coexistent ions and excellent reusability promote the application of D-MOF-808/PEI practically for the rapid and high selectivity removal of boron from complex environmental samples. This work furnishes a promising strategy for boron contamination and expands the application potential of defective MOF-based adsorbents for environmental remediation.",

keywords = "Amino-functionalized, Boron removal, Defect engineering, MOF-808",

author = "Xiaoyu Wang and Hanlin Shao and Zhihao Chen and Xiaoshuang Yin and Yun Chen and Ying Liu and Wenzhong Yang",

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T1 - PEI grafted defective MOF-808 for enhanced boron removal

AU - Wang, Xiaoyu

AU - Shao, Hanlin

AU - Chen, Zhihao

AU - Yin, Xiaoshuang

AU - Chen, Yun

AU - Liu, Ying

AU - Yang, Wenzhong

PY - 2024/5/25

Y1 - 2024/5/25

N2 - Herein, we presented a facile method for enhanced boron removal based on PEI-grafted defective MOF-808 (D-MOF-808/PEI). The rich Zr–OH bonds, amino-functionalized surface, and exposed metal defects of D-MOF-808/PEI endow it with the high adsorption capacity of boron. Due to the ligand exchange at metal defects and boron-imine/amine groups complexation, D-MOF-808/PEI exhibits exceptional selectivity for boron with the saturation adsorption of 95.30 mmol·g−1 at 45 °C. Additionally, negligible interference from other coexistent ions and excellent reusability promote the application of D-MOF-808/PEI practically for the rapid and high selectivity removal of boron from complex environmental samples. This work furnishes a promising strategy for boron contamination and expands the application potential of defective MOF-based adsorbents for environmental remediation.

AB - Herein, we presented a facile method for enhanced boron removal based on PEI-grafted defective MOF-808 (D-MOF-808/PEI). The rich Zr–OH bonds, amino-functionalized surface, and exposed metal defects of D-MOF-808/PEI endow it with the high adsorption capacity of boron. Due to the ligand exchange at metal defects and boron-imine/amine groups complexation, D-MOF-808/PEI exhibits exceptional selectivity for boron with the saturation adsorption of 95.30 mmol·g−1 at 45 °C. Additionally, negligible interference from other coexistent ions and excellent reusability promote the application of D-MOF-808/PEI practically for the rapid and high selectivity removal of boron from complex environmental samples. This work furnishes a promising strategy for boron contamination and expands the application potential of defective MOF-based adsorbents for environmental remediation.

KW - Amino-functionalized

KW - Boron removal

KW - Defect engineering

KW - MOF-808

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U2 - 10.1016/j.seppur.2024.126293

DO - 10.1016/j.seppur.2024.126293

M3 - 文章

AN - SCOPUS:85181803373

SN - 1383-5866

VL - 336

JO - Separation and Purification Technology

JF - Separation and Purification Technology

M1 - 126293

ER -

PEI grafted defective MOF-808 for enhanced boron removal

Abstract

Keywords

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