In-situ fabrication of nanoarchitectured MOF filter for water purification

Wang, Chaohai; Cheng, Puxin; Yao, Yiyuan; Yamauchi, Yusuke; Yan, Xin; Li, J.; Na, Jongbeom

doi:10.1016/j.jhazmat.2020.122164

Cited by 113 publications

(43 citation statements)

References 34 publications

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“…Nowadays, the applications of MOFs can be found in several areas including gas separation (Car et al, 2006;Perez et al, 2009;Li et al, 2012;Syrtsova et al, 2012;Wang and Lai, 2013;Liu et al, 2019), energy storage (Lee et al, 2012;Bon, 2017;Wang et al, 2017;Xu et al, 2017), sensing (Zhu et al, 2013;Kumar et al, 2015;Hu et al, 2020;Li et al, 2020;Ma et al, 2020;Chakraborty et al, 2021), and many others (Hasan et al, 2012;Seo et al, 2016;Barpaga et al, 2019;Gwon et al, 2020). There has been an increasing amount of research focusing on the water purification process (Ragab et al, 2016;He et al, 2017;Kadhom and Deng, 2018;Kumar et al, 2018;Wang et al 2020). Several water pollutants (e.g., heavy metal ions (Fu and Wang, 2011;Al-Rashdi et al, 2013;Abdulla et al, 2019), organic pesticides (Tamara et al, 2005;Michael et al, 2006), toxic chemicals (Angela et al, 2003;Valérie et al, 2004), pharmaceutical and personal care products (Hasanet al, 2012;Azhar et al, 2016), endocrine disrupting chemicals, and per-and polyfluoroalkyl substances (Liu et al, 2015;Chen et al, 2016)) can be eliminated successfully by MOFs or related materials.…”

Section: Introductionmentioning

confidence: 99%

Defect Engineering in Metal‒Organic Frameworks as Futuristic Options for Purification of Pollutants in an Aqueous Environment

Cao

et al. 2021

Front. Chem.

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Clean water scarcity is becoming an increasingly important worldwide issue. The water treatment industry is demanding the development of novel effective materials. Defect engineering in nanoparticles is among the most revolutionary of technologies. Because of their high surface area, structural diversity, and tailorable ability, Metal‒Organic Frameworks (MOFs) can be used for a variety of purposes including separation, storage, sensing, drug delivery, and many other issues. The application in wastewater treatment associated with water stable MOF‒based materials has been an emerging research topic in recent decades. Defect engineering is a sophisticated technique used to manufacture defects and to change the geometric framework of target compounds. Since MOFs have a series of designable structures and active sites, tailoring properties in MOFs by defect engineering is a novel concept. Defect engineering can excavate hidden active sites in MOFs, which can lead to better performance in many fields. Therefore, this technology will open new opportunities in water purification processes. However, there has been little effort to comprehensively discuss this topic. In this review, we provide an overview of the development of defect engineered MOFs for water purification processes. Furthermore, we discuss the potential applications of defect engineered materials.

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Section: Introductionmentioning

confidence: 99%

Defect Engineering in Metal‒Organic Frameworks as Futuristic Options for Purification of Pollutants in an Aqueous Environment

Cao

et al. 2021

Front. Chem.

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“…However, the obtained MOF-based macroscopic materials fabricated in this way tend to exhibit poor uniformity of MOFs, which reduces performance, and is thus an obstacle to the practical application of these materials. Basically, as MOFs are highly crosslinked polymers, their intrinsic insolubility of MOFs as network solids, is a limiting factor in contrast to linear polymers like poly(sodium 4-styrenesulfonate) (PSS) and polyvinyl alcohol (PVA), which can be dissolved, and formulated through many [59] Copyright 2020, Elsevier. b) Schematic illustration of preparation of the PAN@MIL-100(Fe) FM.…”

Section: Discussionmentioning

confidence: 99%

“…[56][57][58] Recently, Wang et al developed a novel M-P-O approach for the synthesis of ZIF-67/PAN nanofibers (Figure 4a). [59] Unlike direct mixing, Co(acac) 2 /PAN composite fibers were initially spun after the formation of the electrospinning precursor, which consisted of fully dispersed Co(acac) 2 and PAN in DMF solution. Then the Co(acac) 2 /PAN composite fibers were immersed in a 2-MeIM solution for 24 h for the final fabrication of ZIF-67/PAN nanofibers.…”

Section: In Situ Growthmentioning

confidence: 99%

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Macroscopic MOF Architectures: Effective Strategies for Practical Application in Water Treatment

Yao

Wang

et al. 2021

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Metal–organic frameworks (MOFs) have potential applications in removing pollutants such as heavy metals, oils, and toxins from water. However, due to the intrinsic fragility of MOFs and their fine powder form, there are still technical barriers to their practical application such as blockage of pipes, difficulty in recovery, and potential environmental toxicity. Therefore, attention has focused on approaches to convert nanocrystalline MOFs into macroscopic materials to overcome these limitations. Recently, strategies for shaping MOFs into beads (0D), nanofibers (1D), membranes (2D), and gels/sponges (3D) with macrostructures are developed including direct mixing, in situ growth, or deposition of MOFs with polymers, cotton, foams or other porous substrates. In this review, successful strategies for the fabrication of macroscopic materials from MOFs and their applications in removing pollutants from water including adsorption, separation, and advanced oxidation processes, are discussed. The relationship between the macroscopic performance and the microstructure of materials, and how the range of 0D to 3D macroscopic materials can be used for water treatment are also outlined.

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“…Metal-organic frameworks are a class of crystalline porous solids constructed from organic linkers that bridge metal ion nodes into reticulated lattices. Their precisely-defined pore structures coupled with their modular construction endows unrivalled structural tuneability and the potential to be tailored as solid-phase adsorbents for gases, [1] water purification, [2] energy recovery surfaces, [3] pharmaceutical separations, [4] chemical sensing [5] and as heterogeneous catalysts. [6] MOFs, as crystalline materials, are usually produced in powdered forms that require shaping and structurization processes for application in practical settings.…”

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confidence: 99%

Reactive Extrusion Printing for Simultaneous Crystallization‐Deposition of Metal–Organic Framework Films

et al. 2022

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Reactive extrusion printing (REP) is demonstrated as an approach to simultaneously crystallize and deposit films of the metal-organic framework (MOF) Cu 3 btc 2 (btc = 1,3,5-benzenetricarboxylate), also known as HKUST-1. The technique co-delivers inks of the copper(II) acetate and H 3 btc starting materials directly on-surface and on-location for rapid nucleation into films at room temperature. The films were analyzed using PXRD, profilometry, SEM and thermal analysis techniques and confirmed high-quality Cu 3 btc 2 films are produced in low-dispersity interconnected nanoparticulate form. The porosity was examined using gas adsorption which showed REP gives Cu 3 btc 2 films with open interconnected pore structures, demonstrating the method bestows features that traditional synthesis does not. REP is a technique that opens the field to timeefficient large-scale fabrication of MOF interfaces and should find use in a wide variety of coating application settings.

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In-situ fabrication of nanoarchitectured MOF filter for water purification

Cited by 113 publications

References 34 publications

Defect Engineering in Metal‒Organic Frameworks as Futuristic Options for Purification of Pollutants in an Aqueous Environment

Defect Engineering in Metal‒Organic Frameworks as Futuristic Options for Purification of Pollutants in an Aqueous Environment

Macroscopic MOF Architectures: Effective Strategies for Practical Application in Water Treatment

Reactive Extrusion Printing for Simultaneous Crystallization‐Deposition of Metal–Organic Framework Films

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