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Preparation of Cationic MOFs with Mobile Anions by Anion Stripping to Remove 2,4-D from Water.

ABSTRACT: A cationic porous framework with mobile anions (MIL-101(Cr)-Cl) was easily and successfully synthesized by utilizing the stronger affinity of F^- to Al³⁺ than Cr³⁺ in the charge-balanced framework of MIL-101(Cr). The structure, morphology and porosity of MIL-101(Cr)-Cl were characterized. The obtained new materials retain the high surface area, good thermostability, and structure topology of MIL-101(Cr). With the mobile Cl^- anion, MIL-101(Cr)-Cl can be used as an ion-exchange material for anionic organic pollutions. In this work, 2,4-dichlorophenoxyacetic acid (2,4-D) was used as a model to test the absorption performance of this new material. This new material exhibited improved adsorbability compared to that of the original metal-organic frameworks (MOFs). At the same time, this material also shows high anti-interference performance with changing solution pH.

SUBMITTER: Chen T

PROVIDER: S-EPMC5578245 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature

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Preparation of Cationic MOFs with Mobile Anions by Anion Stripping to Remove 2,4-D from Water.

Chen Tao T Zhang Cong C Qin Yuemei Y Yang Haiguan H Zhang Peng P Ye Fanggui F

Materials (Basel, Switzerland) 20170730 8

A cationic porous framework with mobile anions (MIL-101(Cr)-Cl) was easily and successfully synthesized by utilizing the stronger affinity of F- to Al3+ than Cr3+ in the charge-balanced framework of MIL-101(Cr). The structure, morphology and porosity of MIL-101(Cr)-Cl were characterized. The obtained new materials retain the high surface area, good thermostability, and structure topology of MIL-101(Cr). With the mobile Cl- anion, MIL-101(Cr)-Cl can be ...[more]

PMID: 28773239

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Dataset Information

Preparation of Cationic MOFs with Mobile Anions by Anion Stripping to Remove 2,4-D from Water.

Publications

Preparation of Cationic MOFs with Mobile Anions by Anion Stripping to Remove 2,4-D from Water.

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