Improving Water Stability of Metal–Organic Frameworks by a General Surface Hydrophobic Polymerization

Ding, Meili; Jiang, Hai‐Long

doi:10.31635/ccschem.020.202000515

Cited by 109 publications

(71 citation statements)

References 23 publications

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“…It is noteworthy that both researchers reported that PMDS [47] or PDMS-Cat [48] coating not only boost hydrophobicity of the MOFs, but also retain their catalytic performance in the presence of water molecules.…”

Section: Addition Of Hydrophobic Coatingmentioning

confidence: 99%

“…MOF-based photocatalytic membrane have also been reported in several other fields of application, such as oil and water separation [158,159], phenol removal [160], and organic pollution [47,161]; which generally show that the MOF addition within the photocatalyst membrane can significantly improve the membrane performance although still challenging to conduct. Summary of MOFs-based MMM's performance is presented in Table 5.…”

Section: Mofs As Photocatalytic Filler For Photocatalytic Membranementioning

confidence: 99%

“…In addition of using hydrophobic molecules, several studies successfully increased the surface hydrophobicity of MOFs by introducing hydrophobic polymeric materials to the MOFs. Ding et al increased hydrophobicity and water stability of HKUST-1 by creating hydrophobic layer of polydimethylsiloxane (PDMS) on the MOF surface through post-synthesis in-situ polymerization [ 47 ]. The WCA of the PDMS coated HKUST-1 (designated HKUST-1-P) and pristine HKUST-1 was 135° and 0°, respectively, which proved that the method increased the hydrophobicity of HKUST-1.…”

Section: General Improvement Strategies: Enhancing the Water Stability Of Metal-organic Frameworkmentioning

confidence: 99%

“…Interestingly, stronger hydrophobicity was observed when PDMS-Cat-coated ZIF-8 casted on the carbon cloth substrate (WCA of 156°) since the excess PDMS-Cat that were present in the mixture will form a network and homogeneous MOF coating on the substrate. It is noteworthy that both researchers reported that PMDS [ 47 ] or PDMS-Cat [ 48 ] coating not only boost hydrophobicity of the MOFs, but also retain their catalytic performance in the presence of water molecules.…”

Section: General Improvement Strategies: Enhancing the Water Stability Of Metal-organic Frameworkmentioning

confidence: 99%

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Recent Improvement Strategies on Metal-Organic Frameworks as Adsorbent, Catalyst, and Membrane for Wastewater Treatment

et al. 2021

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The accumulation of pollutants in water is dangerous for the environment and human lives. Some of them are considered as persistent organic pollutants (POPs) that cannot be eliminated from wastewater effluent. Thus, many researchers have devoted their efforts to improving the existing technology or providing an alternative strategy to solve this environmental problem. One of the attractive materials for this purpose are metal-organic frameworks (MOFs) due to their superior high surface area, high porosity, and the tunable features of their structures and function. This review provides an up-to-date and comprehensive description of MOFs and their crucial role as adsorbent, catalyst, and membrane in wastewater treatment. This study also highlighted several strategies to improve their capability to remove pollutants from water effluent.

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Section: Addition Of Hydrophobic Coatingmentioning

confidence: 99%

Section: Mofs As Photocatalytic Filler For Photocatalytic Membranementioning

confidence: 99%

Section: General Improvement Strategies: Enhancing the Water Stability Of Metal-organic Frameworkmentioning

confidence: 99%

Section: General Improvement Strategies: Enhancing the Water Stability Of Metal-organic Frameworkmentioning

confidence: 99%

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Recent Improvement Strategies on Metal-Organic Frameworks as Adsorbent, Catalyst, and Membrane for Wastewater Treatment

et al. 2021

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“…If the typical MOFs hosts can improve the stability of 3 crystal structure in more organic solvents, the detected scope of guest molecules can be further extended. 5,[28][29] In fact, many MOFs are designed with extremely high symmetry, which are suitable for gas adsorption.…”

Section: Introductionmentioning

confidence: 99%

An Ultrastable π–π Stacked Porous Organic Molecular Framework as a Crystalline Sponge for Rapid Molecular Structure Determination

Chen

et al. 2022

CCS Chem

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The crystalline sponge method is a pragmatic and promising strategy for molecular structure determination.However, the dominant metal-organic framework crystal sponge platforms are always facing poor chemical stability, especially solvent instability, which has hampered their application in vaster domain. Herein we report an ultra-stable π-π stacked porous organic molecular framework which exhibits permanent porosity, high thermal stability, and good chemical resistance. It can efficiently implement an approach to molecular structure determination via a single-crystal-to-single-crystal transformation. This is the first example utilizing π-π stacked porous organic molecular framework as "crystalline sponge" to determine a wide variety of guests, ranging from hydrophilic to hydrophobic, and from aliphatic to aromatic, which complements the crystalline sponges based on the famous metal-organic frameworks. More importantly, it can achieve rapid structure determination of small molecules within three hours.

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In Situ Construction of High‐Density Solid Electrolyte Interphase from MOFs for Advanced Zn Metal Anodes

Xiong

Yang

Cao

et al. 2023

Adv Funct Materials

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Aqueous zinc anode has been re-evaluated due to the superiority in tackling safety and cost concerns. However, the limited lifespan originating from Zn dendritic and side reactions largely hamper commercial development. Currently, the coating prepared by simple slurry mixing is leaky and ineffectively isolate sulfate and water. Herein, inspired by the DFT calculations and the easy hydrolysis characteristic of MIL-125 (Ti), an in-situ grown high-dense TiO 2-x solid electrolyte interphase (HDSEI) with rich oxygen vacancies is successfully constructed in an aqueous electrolyte, in which the oxygen vacancies not only strengthen the hydrogen binding force thereby inhibiting the hydrogen precipitation by-reaction, but also reduce the migration energy barrier of zinc ions and enhance the mechanical properties. Profiting from the HDSEI, symmetric Zn cells survive up to remarkable 4200 h at 1 mA cm −2 , nearly 42-times than that of bare Zn anodes. In situ optical microscopy clearly reveals that the in situ grown HDSEI homogenizes the zinc deposition process, while bare zinc without HDSEI shows significant dendrites, confirming the protective nature of HDSEI. Furthermore, full Zn ion capacitors can deliver excellent electrochemical performance, providing a feasible in situ approach to construct HDSEI to implement dendrite-free metal anodes.

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Improving Water Stability of Metal–Organic Frameworks by a General Surface Hydrophobic Polymerization

Cited by 109 publications

References 23 publications

Recent Improvement Strategies on Metal-Organic Frameworks as Adsorbent, Catalyst, and Membrane for Wastewater Treatment

Recent Improvement Strategies on Metal-Organic Frameworks as Adsorbent, Catalyst, and Membrane for Wastewater Treatment

An Ultrastable π–π Stacked Porous Organic Molecular Framework as a Crystalline Sponge for Rapid Molecular Structure Determination

In Situ Construction of High‐Density Solid Electrolyte Interphase from MOFs for Advanced Zn Metal Anodes

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