Crystalline porous frameworks as nano-enhancers for membrane liquid separation – Recent developments

Kujawa, Joanna; Al‐Gharabli, Samer; Muzioł, Tadeusz; Knozowska, Katarzyna; Li, Guoqiang; Dumée, Ludovic F.; Kujawski, Wojciech

doi:10.1016/j.ccr.2021.213969

Cited by 39 publications

(24 citation statements)

References 599 publications

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“…MOFs based membranes received a lot of attention from researchers in 2010 due to their high permeability, selectivity, and photocatalytic activity [12,116]. Generally, MOFs as single building materials of membrane are not applicable since MOFs are expensive and their high crystallinity can produce brittleness which limits their application in membrane technology [13]. Thus, MOF membranes were commonly growth on the support materials i.e., polymers or inorganic materials to reduce cost production and improves mechanical properties [117][118][119].…”

Section: Metal-organic Framework As Membranementioning

confidence: 99%

“…Recently, it has been reported that UiO-66 NH 2 MOF on polyacrylonitrile (PAN) substrates through the in situ growth method produces high water permeability 62 L/m 2 •h (LMH) and dye (Rhodamine B) rejection up to 92% [123]. With the same method, Guo and coworkers reported that UiO-66 under a wood membrane showed high capability to remove organic pollutants with efficiency up to 92% and permeability 1000 LMH [13].…”

Section: Growing Metal-organic Framework Crystals On the Support Materialsmentioning

confidence: 99%

“…The MOF membrane generated via the EDS method could be achieved by anodic dissolution and reductive deprotonation [131]. This method possibly controls the thickness and repairs the MOFs crystal defect [13]. Other advantages of EDS method are low temperature reaction, scalability, and short reaction time [132,133].…”

Section: Growing Metal-organic Framework Crystals On the Support Materialsmentioning

confidence: 99%

“…Various methods have been extensively employed for the POPs removal in wastewater such as flocculation/coagulation [6], adsorption [5,7], photocatalytic [8,9], Fenton-like catalysts [10,11], membrane separation [12,13], and reverse osmosis [14]. Among these methods, adsorption, catalytic degradation, and membrane separation are promising techniques for eliminating harmful pollutants from wastewater due to their low cost and simple process [13,15,16]. The correct choice of materials has a significant influence on the removal performance of those methods [17][18][19].…”

Section: Introductionmentioning

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: Metal-organic Framework As Membranementioning

confidence: 99%

Section: Growing Metal-organic Framework Crystals On the Support Materialsmentioning

confidence: 99%

Section: Growing Metal-organic Framework Crystals On the Support Materialsmentioning

confidence: 99%

Section: Introductionmentioning

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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“…When a membrane is applied for separation in aqueous media, the hydrophobicity/hydrophilicity regulates the transport characteristics of the resulting separation material. [54] By enhancing the hydrophilicity, the ion retention can be significantly increased and the loss of water permeability can be reduced. [55] Generally, the hydrophobicity/ hydrophilicity of COF-based membranes is determined by their building blocks, such as amines and alkoxy groups in monomers.…”

Section: Hydrophobic/hydrophilic Propertymentioning

confidence: 99%

Advanced Covalent Organic Framework‐Based Membranes for Recovery of Ionic Resources

Xia

et al. 2022

Small

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metal ions have strong chemical toxicity including carcinogenicity, mutagenicity and teratogenicity, which can cause danger threat to the natural ecosystem and public health. [2] These heavy metal ions, unlike organic pollutants, are nonbiodegradable, highly soluble, and mobile, and remain in the environment. [3] This water contamination has further aggravated water scarcity, causing a new and unprecedented challenge for mankind. On the other hand, pure ions such as lithium, heavy metal ions, and radionuclides are important resources for industrial applications. [4] For example, lithium has rising demand for various applications especially the recent burgeoning of lithium-ion batteries for electric equipment and energy storage devices. [5] Consequently, the efficient recovery of these ion resources with high purity is becoming an urgent issue.Many technologies have been implemented for water treatment, among which membrane technology attracted much attention because of its low energy consumption, small carbon footprint, convenient operation, and good scalability. [6] Recently, novel membranes constructed from advanced materials such as porous carbons, [7] layered double hydroxides, [8] graphene, [9] molybdenum disulfide nanosheet, [10] and metal organic frameworks (MOFs) [11] have attracted extensive attention for their high surface area and porous structures. These unique physical structures have an excellent separation performance over conventional polymer membranes. [12] Recently, a new class of crystalline material-covalent organic frameworks (COFs) has been put forward and applied in membrane fabrication. COFs have crystalline porous network structures with regular and periodical assembly covalent bonds synthesized from reversible reactions, and were first reported by Yaghi and co-workers in 2005. [13] After that, various COF materials including bromo-based COFs, imine-based COFs, and amine-based COFs were reported. [14] The geometry of the COF depends on the size, symmetry, and connectivity of the connecting bonds, enabling a precise fine-tuning of the COF-based membrane channels to separate molecules or ions with different sizes. Varieties of synthesis methods have been developed to produce novel COFs, [15] such as the hydrothermal method, [16] the ion thermal method, [17] the mechanochemical method, [18] and the microwave method. [19] The unique structure endows COFs with superior properties like orderly assembled channels, tunable pore size and miscibility with organics, [20] Membrane technology has shown a viable potential in conversion of liquidwaste or high-salt streams to fresh waters and resources. However, the nonadjustability pore size of traditional membranes limits the application of ion capture due to their low selectivity for target ions. Recently, covalent organic frameworks ( COFs) have become a promising candidate for construction of advanced ion separation membranes for ion resource recovery due to their low density, large surface area, tunable channel structure, and tailored functionality...

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Solution Processable Metal–Organic Frameworks: Synthesis Strategy and Applications

Zhang,

Wu,

Peng

et al. 2024

Advanced Materials

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Metal–organic frameworks (MOFs), constructed by inorganic secondary building units with organic linkers via reticular chemistry, inherently suffer from poor solution processability due to their insoluble nature, resulting from their extensive crystalline networks and structural rigidity. The ubiquitous occurrence of precipitation and agglomeration of MOFs upon formation poses a significant obstacle to the scale‐up production of MOF‐based monolith, aerogels, membranes, and electronic devices, thus restricting their practical applications in various scenarios. To address the previously mentioned challenge, significant strides have been achieved over the past decade in the development of various strategies aimed at preparing solution‐processable MOF systems. In this review, the latest advance in the synthetic strategies for the construction of solution‐processable MOFs, including direct dispersion in ionic liquids, surface modification, controllable calcination, and bottom‐up synthesis, is comprehensively summarized. The respective advantages and disadvantages of each method are discussed. Additionally, the intriguing applications of solution‐processable MOF systems in the fields of liquid adsorbent, molecular capture, sensing, and separation are systematically discussed. Finally, the challenges and opportunities about the continued advancement of solution‐processable MOFs and their potential applications are outlooked.

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Crystalline porous frameworks as nano-enhancers for membrane liquid separation – Recent developments

Cited by 39 publications

References 599 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

Advanced Covalent Organic Framework‐Based Membranes for Recovery of Ionic Resources

Solution Processable Metal–Organic Frameworks: Synthesis Strategy and Applications

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