scholarly journals Metal–Organic Framework Membranes: From Fabrication to Gas Separation

Crystals ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 412 ◽  
Author(s):  
Osama Shekhah ◽  
Valeriya Chernikova ◽  
Youssef Belmabkhout ◽  
Mohamed Eddaoudi
Keyword(s):  
Gas Separation ◽  
Metal Ion ◽  
Metal Organic Framework ◽  
Advanced Materials ◽  
Ion Clusters ◽  
Industrial Setting ◽  
Separation Membrane ◽  
Potential Applications ◽  
Thin Membranes ◽  
Metal Organic

Gas membrane-based separation is considered one of the most effective technologies to address energy efficiency and large footprint challenges. Various classes of advanced materials, including polymers, zeolites, porous carbons, and metal–organic frameworks (MOFs) have been investigated as potential suitable candidates for gas membrane-based separations. MOFs possess a uniquely tunable nature in which the pore size and environment can be controlled by connecting metal ions (or metal ion clusters) with organic linkers of various functionalities. This unique characteristic makes them attractive for the fabrication of thin membranes, as both the diffusion and solubility components of permeability can be altered. Numerous studies have been published on the synthesis and applications of MOFs, as well as the fabrication of MOF-based thin films. However, few studies have addressed their gas separation properties for potential applications in membrane-based separation technologies. Here, we present a synopsis of the different types of MOF-based membranes that have been fabricated over the past decade. In this review, we start with a short introduction touching on the gas separation membrane technology. We also shed light on the various techniques developed for the fabrication of MOF as membranes, and the key challenges that still need to be tackled before MOF-based membranes can successfully be used in gas separation and implemented in an industrial setting.

scholarly journals Metal–Organic Framework Membranes: From Fabrica-Tion to Application in Gas Separation

2018 ◽  
Author(s):  
Osama Shekhah ◽  
Valeriya Chernikova ◽  
Youssef Belmabkhout ◽  
Mohamed Eddaoudi
Keyword(s):  
Gas Separation ◽  
Metal Ion ◽  
Advanced Materials ◽  
Short Introduction ◽  
Gas Separation Membrane ◽  
Ion Clusters ◽  
Membrane Fabrication ◽  
Separation Membrane ◽  
Effective Technology ◽  
Shed Light

Gas membrane-based separation is considered one of the furthermost effective technology to address energy efficiency and large footprint challenges. Various classes of advanced materials including polymers, zeolites, porous carbons and metal–organic frameworks (MOFs) were attempted as membranes for gas separation. MOFs, among other porous materials, possess uniquely tunable nature, in which the pore size and environment can be controlled by connecting metal ions (or metal ion clusters) with organic linkers with various functionalities. This feature makes them attractive for thin membrane fabrication, as both diffusion and solubility components of permeability can be altered. It is interesting to notice that numerous reports have addressed the synthesis of different MOFs, fabrication of their corresponding thin films and their applications, nonetheless, relatively limited studies addressed their gas separation application as membranes. In this review, we provide a synopsis of the various MOF-based membranes that were fabricated in the last decade. In this review we propose a short introduction touching on the gas separation membrane technology and we shed light on (i) the various techniques developed for the fabrication of MOF as membranes and (ii) challenges and application for MOF thin film membranes in various important gas separation applications.

Fabrication of a freestanding metal organic framework predominant hollow fiber mat and its potential applications in gas separation and catalysis

2020 ◽  
Vol 8 (7) ◽  
pp. 3803-3813 ◽  
Author(s):  
Zijian Dai ◽  
Dennis T. Lee ◽  
Kaihang Shi ◽  
Siyao Wang ◽  
Heather F. Barton ◽  
...  
Keyword(s):  
Gas Separation ◽  
Hollow Fiber ◽  
Metal Organic Framework ◽  
Fiber Mats ◽  
Potential Applications ◽  
Metal Organic ◽  
Voc Abatement ◽  
Organic Framework

Freestanding MOF predominant hollow fiber mats are fabricated via an oxide-to-MOF conversion approach. The unique hollow fiber mats show promising potential in CO2 adsorption, CO2/N2 separation, and VOC abatement applications.

scholarly journals The Modulating Effect of Ethanol on the Morphology of a Zr-based Metal-Organic Framework under Room Temperature in the Cosolvent System

2021 ◽  
Author(s):  
Yunzhuo Li ◽  
Zirong Tang ◽  
Chen Chen
Keyword(s):  
Metal Ion ◽  
Room Temperature ◽  
Metal Organic Framework ◽  
Solvent Ratio ◽  
Marangoni Flow ◽  
Flow Effect ◽  
Ion Clusters ◽  
Metal Organic ◽  
Linker Molecules ◽  
Organic Framework

We report that ethanol, used together with water, plays a crucial role in tuning the structures of a zirconium-based Metal-Organic Framework, the 12-connected MOF-801, and the possible mechanisms of this modulating effect. By employing the cosolvent system of ethanol and water just under room temperature without the presence of a monotopic carboxylic acid as the modulator, MOF-801 in various morphologies of different sizes can be synthesized. The linear correlation between the ethanol/water ratio and the crystal sizes is also demonstrated. The growth mechanism is mainly explained by ethanol’s binding with the metal ion clusters and the Marangoni Flow Effect. Ethanol competes with the linker molecules in coordinating with the Zr metal clusters, a role similar to that of the modulators. The Marangoni Flow Effect, which dominates at a certain solvent ratio, further promotes the 1-D alignment of the MOF-801 crystals.

scholarly journals Biodegradable Metal Organic Frameworks for Multimodal Imaging and Targeting Theranostics

Biosensors ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 299
Author(s):  
Xiangdong Lai ◽  
Hui Jiang ◽  
Xuemei Wang
Keyword(s):  
Metal Ion ◽  
Multimodal Imaging ◽  
Rational Design ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Organic Ligand ◽  
Therapeutic Strategies ◽  
Ion Clusters ◽  
Surface Areas ◽  
Metal Organic

Though there already had been notable progress in developing efficient therapeutic strategies for cancers, there still exist many requirements for significant improvement of the safety and efficiency of targeting cancer treatment. Thus, the rational design of a fully biodegradable and synergistic bioimaging and therapy system is of great significance. Metal organic framework (MOF) is an emerging class of coordination materials formed from metal ion/ion clusters nodes and organic ligand linkers. It arouses increasing interest in various areas in recent years. The unique features of adjustable composition, porous and directional structure, high specific surface areas, biocompatibility, and biodegradability make it possible for MOFs to be utilized as nano-drugs or/and nanocarriers for multimodal imaging and therapy. This review outlines recent advances in developing MOFs for multimodal treatment of cancer and discusses the prospects and challenges ahead.

scholarly journals Nano Metal-Organic Framework Particles (i.e. MIL-100(Fe), HKUST-1(Cu), Cu-TPA, and MOF-5(Zn)) using a solvothermal process

2019 ◽  
Vol 4 (2) ◽  
pp. 220-228 ◽  
Author(s):  
Asep Bayu Dani Nandiyanto
Keyword(s):  
Metal Ions ◽  
Metal Ion ◽  
Metal Organic Framework ◽  
Drug Carrier ◽  
Dye Adsorption ◽  
High Porosity ◽  
Solvothermal Process ◽  
Potential Applications ◽  
Metal Organic ◽  
Organic Framework

Metal-organic framework (MOF) is attractive because of its representation as a class of crystalline porous materials with excellent properties, specifically its chemical functionality and high porosity, making it potentially tailored for various desired applications. Although the synthesis of MOFs have been well-documented, most reports are in the bulk and micrometer sizes. The synthesis of MOFs in the smaller size is still inevitable. This work reports the synthesis of nano MOF particles (i.e., MIL-100(Fe), HKUST-1(Cu), Cu-TPA, and MOF-5(Zn)). In the experiment, MOFs were created by interacting ligands and metal ions in the specific solvent in the solvothermal process. Different from other reports, this study used low concentrations of ligands and metal ions, in which this is effective to control ligand-metal ion interaction, reaction, nucleation, and growth of MOF. The successful synthesis was obtained and effective for various MOF particles by changing types of ligands and metal ions. The study also obtained that compatibility and dilution of the ligands and the metal ions in the specific solvent are important parameters. This information will bring new strategies and further developments for the synthesis of MOF materials for wider range of potential applications in separation, catalysis, dye adsorption, and drug carrier uses.

Continuous assembly of a polymer on a metal–organic framework (CAP on MOF): a 30 nm thick polymeric gas separation membrane

2018 ◽  
Vol 11 (3) ◽  
pp. 544-550 ◽  
Author(s):  
Ke Xie ◽  
Qiang Fu ◽  
Chenglong Xu ◽  
Hiep Lu ◽  
Qinghu Zhao ◽  
...  
Keyword(s):  
Gas Separation ◽  
Metal Organic Framework ◽  
Polymeric Membrane ◽  
Separation Performance ◽  
Bottom Up ◽  
Gas Separation Membrane ◽  
Separation Membrane ◽  
Metal Organic ◽  
Organic Framework

A 30 nm thick polymeric membrane on a metal–organic framework substrate was fabricated via a bottom-up approach, exhibiting excellent CO2/N2 separation performance.

scholarly journals The Modulating Effect of Ethanol on the Morphology of a Zr-Based Metal–Organic Framework at Room Temperature in a Cosolvent System

Crystals ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 434
Author(s):  
Yunzhuo Li ◽  
Zirong Tang ◽  
Chen Chen
Keyword(s):  
Metal Ion ◽  
Room Temperature ◽  
Metal Organic Framework ◽  
Solvent Ratio ◽  
Marangoni Flow ◽  
Flow Effect ◽  
Ion Clusters ◽  
Metal Organic ◽  
Linker Molecules ◽  
Organic Framework

We report that ethanol, used together with water, plays a crucial role in tuning the structures of a zirconium-based metal–organic framework and the 12-connected MOF-801, as well as the possible mechanisms of this modulating effect. By employing a cosolvent system of ethanol and water at just under room temperature without the presence of a monotopic carboxylic acid as the modulator, MOF-801 in various morphologies of different sizes could be synthesized. A linear correlation between the ethanol/water ratio and the crystal sizes is also demonstrated. The growth mechanism is mainly explained by ethanol’s bonding with the metal ion clusters and the Marangoni flow effect. Ethanol competes with the linker molecules in coordinating with the Zr metal clusters, a role similar to that of the modulators. The Marangoni flow effect, which dominates at a certain solvent ratio, further promotes the 1D alignment of the MOF-801 crystals.

A High-Performance Gas-Separation Membrane Containing Submicrometer-Sized Metal-Organic Framework Crystals

2010 ◽  
Vol 49 (51) ◽  
pp. 9863-9866 ◽  
Author(s):  
Tae-Hyun Bae ◽  
Jong Suk Lee ◽  
Wulin Qiu ◽  
William J. Koros ◽  
Christopher W. Jones ◽  
...  
Keyword(s):  
Gas Separation ◽  
High Performance ◽  
Metal Organic Framework ◽  
Gas Separation Membrane ◽  
Separation Membrane ◽  
Metal Organic ◽  
Organic Framework

scholarly journals Applying Benzene Tetracarboxylic Acid as a Linker in the Synthesis a Porous Ba (II)-Based MOF by Ultrasonic Method

Proceedings ◽  
2019 ◽  
Vol 41 (1) ◽  
pp. 61
Author(s):  
Targol Rahimi Masale Nezhad ◽  
Faranak Manteghi
Keyword(s):  
Metal Ion ◽  
Ultrasonic Method ◽  
Transition Metal Ions ◽  
Rare Earth Ions ◽  
X Ray Diffraction ◽  
Ion Clusters ◽  
The Past ◽  
Potential Applications ◽  
Metal Organic ◽  
Organic Linker

Metal−organic frameworks (MOFs), which are porous materials that are prepared from metal ion/clusters and multidentate organic ligands, have evolved to be next generation utility materials because of their usability in diverse applications. MOFs, as a class of interesting materials, have attracted great attention due to their controllable pore size and elaborately designed pore structure. In the past two decades, MOFs have exhibited versatile potential applications such as gas storage, gas separation, heterocatalysis, sensors, and luminescence. Most research works so far have focused on MOFs based on transition metal ions or rare-earth ions. In this review, a porous Ba (II)-based MOF was synthesized with an ultrasonic method by using benzene-1,2,4,5-tetracaboxylic acid as an organic linker; this was characterized by X-Ray diffraction, Fourier transform infrared spectroscopy and scanning electron microscopy methods.

A High-Performance Gas-Separation Membrane Containing Submicrometer-Sized Metal-Organic Framework Crystals

2010 ◽  
Vol 122 (51) ◽  
pp. 10059-10062 ◽  
Author(s):  
Tae-Hyun Bae ◽  
Jong Suk Lee ◽  
Wulin Qiu ◽  
William J. Koros ◽  
Christopher W. Jones ◽  
...  
Keyword(s):  
Gas Separation ◽  
High Performance ◽  
Metal Organic Framework ◽  
Gas Separation Membrane ◽  
Separation Membrane ◽  
Metal Organic ◽  
Organic Framework
Sign in / Sign up

Export Citation Format

Share Document