1
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Ettlinger R, Vornholt SM, Roach MC, Tuttle RR, Thai J, Kothari M, Boese M, Holwell A, Duncan MJ, Reynolds M, Morris RE. Mixed Metal-Organic Framework Mixed-Matrix Membranes: Insights into Simultaneous Moisture-Triggered and Catalytic Delivery of Nitric Oxide using Cryo-scanning Electron Microscopy. ACS APPLIED MATERIALS & INTERFACES 2023; 15:49835-49842. [PMID: 37818956 PMCID: PMC10614190 DOI: 10.1021/acsami.3c11283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 09/14/2023] [Indexed: 10/13/2023]
Abstract
The fundamental chemical and structural diversity of metal-organic frameworks (MOFs) is vast, but there is a lack of industrial adoption of these extremely versatile compounds. To bridge the gap between basic research and industry, MOF powders must be formulated into more application-relevant shapes and/or composites. Successful incorporation of varying ratios of two different MOFs, CPO-27-Ni and CuBTTri, in a thin polymer film represents an important step toward the development of mixed MOF mixed-matrix membranes. To gain insight into the distribution of the two different MOFs in the polymer, we report their investigation by Cryo-scanning electron microscopy (Cryo-SEM) tomography, which minimizes surface charging and electron beam-induced damage. Because the MOFs are based on two different metal ions, Ni and Cu, the elemental maps of the MOF composite cross sections clearly identify the size and location of each MOF in the reconstructed 3D model. The tomography run was about six times faster than conventional focused ion beam (FIB)-SEM and the first insights to image segmentation combined with machine learning could be achieved. To verify that the MOF composites combined the benefits of rapid moisture-triggered release of nitric oxide (NO) from CPO-27-Ni with the continuous catalytic generation of NO from CuBTTri, we characterized their ability to deliver NO individually and simultaneously. These MOF composites show great promise to achieve optimal dual NO delivery in real-world medical applications.
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Affiliation(s)
- Romy Ettlinger
- School
of Chemistry, University of St. Andrews, North Haugh, St Andrews KY16 9ST, United Kingdom
| | - Simon M. Vornholt
- School
of Chemistry, University of St. Andrews, North Haugh, St Andrews KY16 9ST, United Kingdom
| | - Madeline C. Roach
- Department
of Chemistry, Colorado State University, 1872 Campus Delivery, Fort Collins, Colorado 80523, United States
| | - Robert R. Tuttle
- Department
of Chemistry, Colorado State University, 1872 Campus Delivery, Fort Collins, Colorado 80523, United States
| | - Jonathan Thai
- Department
of Chemistry, Colorado State University, 1872 Campus Delivery, Fort Collins, Colorado 80523, United States
| | - Maadhav Kothari
- ZEISS Research
Microscopy Solutions, Carl-Zeiss-Straße 22, Oberkochen 73447, Germany
| | - Markus Boese
- ZEISS Research
Microscopy Solutions, Carl-Zeiss-Straße 22, Oberkochen 73447, Germany
| | - Andy Holwell
- Carl
Zeiss
Microscopy Ltd, Cambourne, Cambridge CB23 6DW, United Kingdom
| | - Morven J. Duncan
- School
of Chemistry, University of St. Andrews, North Haugh, St Andrews KY16 9ST, United Kingdom
| | - Melissa Reynolds
- Department
of Chemistry, Colorado State University, 1872 Campus Delivery, Fort Collins, Colorado 80523, United States
| | - Russell E. Morris
- School
of Chemistry, University of St. Andrews, North Haugh, St Andrews KY16 9ST, United Kingdom
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2
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Trierweiler Gonçalves G, Michelin L, Josien L, Paillaud JL, Chaplais G. Impact of Compression on the Textural and Structural Properties of CPO-27(Ni). Molecules 2023; 28:6753. [PMID: 37836596 PMCID: PMC10574604 DOI: 10.3390/molecules28196753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 09/15/2023] [Accepted: 09/18/2023] [Indexed: 10/15/2023] Open
Abstract
The employment of metal-organic frameworks in powder form is undesirable from an industrial perspective due to process and safety issues. This work is devoted to evaluating the impact of compression on the textural and structural properties of CPO-27(Ni). For this purpose, CPO-27(Ni) was synthesized under hydrosolvothermal conditions and characterized. Then, the resulting powder was compressed into binderless pellets using variable compression forces ranging from 5-90 kN (37-678 MPa) and characterized by means of nitrogen adsorption/desorption, thermogravimetric analysis and powder X-ray diffraction to evaluate textural, thermal and structural changes. Both textural and structural properties decreased with increasing compression force. Thermal stability was impacted in pellets compressed at forces over 70 kN. CPO-27(Ni) pelletized at 5, 8 and 10 kN, and retained more than 94% of its initial textural properties, while a loss of about one-third of the textural property was observed for the two most compressed samples (70 and 90 kN) compared to the starting powder.
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Affiliation(s)
- Gabriel Trierweiler Gonçalves
- Université de Haute-Alsace, CNRS, Institut de Science des Matériaux de Mulhouse (IS2M), UMR 7361, Axe Matériaux à Porosité Contrôlée (MPC), F-68100 Mulhouse, France
- Université de Strasbourg, F-67000 Strasbourg, France
| | - Laure Michelin
- Université de Haute-Alsace, CNRS, Institut de Science des Matériaux de Mulhouse (IS2M), UMR 7361, Axe Matériaux à Porosité Contrôlée (MPC), F-68100 Mulhouse, France
- Université de Strasbourg, F-67000 Strasbourg, France
| | - Ludovic Josien
- Université de Haute-Alsace, CNRS, Institut de Science des Matériaux de Mulhouse (IS2M), UMR 7361, Axe Matériaux à Porosité Contrôlée (MPC), F-68100 Mulhouse, France
- Université de Strasbourg, F-67000 Strasbourg, France
| | - Jean-Louis Paillaud
- Université de Haute-Alsace, CNRS, Institut de Science des Matériaux de Mulhouse (IS2M), UMR 7361, Axe Matériaux à Porosité Contrôlée (MPC), F-68100 Mulhouse, France
- Université de Strasbourg, F-67000 Strasbourg, France
| | - Gérald Chaplais
- Université de Haute-Alsace, CNRS, Institut de Science des Matériaux de Mulhouse (IS2M), UMR 7361, Axe Matériaux à Porosité Contrôlée (MPC), F-68100 Mulhouse, France
- Université de Strasbourg, F-67000 Strasbourg, France
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3
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Small LJ, Vornholt SM, Percival SJ, Meyerson ML, Schindelholz ME, Chapman KW, Nenoff TM. Impedance-Based Detection of NO 2 Using Ni-MOF-74: Influence of Competitive Gas Adsorption. ACS APPLIED MATERIALS & INTERFACES 2023; 15:37675-37686. [PMID: 37498628 DOI: 10.1021/acsami.3c06864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/28/2023]
Abstract
Chemically robust, low-power sensors are needed for the direct electrical detection of toxic gases. Metal-organic frameworks (MOFs) offer exceptional chemical and structural tunability to meet this challenge, though further understanding is needed regarding how coadsorbed gases influence or interfere with the electrical response. To probe the influence of competitive gases on trace NO2 detection in a simulated flue gas stream, a combined structure-property study integrating synchrotron powder diffraction and pair distribution function analyses was undertaken, to elucidate how structural changes associated with gas binding inside Ni-MOF-74 pores correlate with the electrical response from Ni-MOF-74-based sensors. Data were evaluated for 16 gas combinations of N2, NO2, SO2, CO2, and H2O at 50 °C. Fourier difference maps from a rigid-body Rietveld analysis showed that additional electron density localized around the Ni-MOF-74 lattice correlated with large decreases in Ni-MOF-74 film resistance of up to a factor of 6 × 103, observed only when NO2 was present. These changes in resistance were significantly amplified by the presence of competing gases, except for CO2. Without NO2, H2O rapidly (<120 s) produced small (1-3×) decreases in resistance, though this effect could be differentiated from the slower adsorption of NO2 by the evaluation of the MOF's capacitance. Furthermore, samples exposed to H2O displayed a significant shift in lattice parameters toward a larger lattice and more diffuse charge density in the MOF pore. Evaluating the Ni-MOF-74 impedance in real time, NO2 adsorption was associated with two electrically distinct processes, the faster of which was inhibited by competitive adsorption of CO2. Together, this work points to the unique interaction of NO2 and other specific gases (e.g., H2O, SO2) with the MOF's surface, leading to orders of magnitude decrease in MOF resistance and enhanced NO2 detection. Understanding and leveraging these coadsorbed gases will further improve the gas detection properties of MOF materials.
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Affiliation(s)
- Leo J Small
- Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
| | - Simon M Vornholt
- Department of Chemistry, Stony Brook University, 100 Nicolls Road, Stony Brook, New York 11794, United States
| | - Stephen J Percival
- Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
| | - Melissa L Meyerson
- Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
| | | | - Karena W Chapman
- Department of Chemistry, Stony Brook University, 100 Nicolls Road, Stony Brook, New York 11794, United States
| | - Tina M Nenoff
- Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
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4
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In situ single-crystal synchrotron X-ray diffraction studies of biologically active gases in metal-organic frameworks. Commun Chem 2023; 6:44. [PMID: 36859657 PMCID: PMC9977776 DOI: 10.1038/s42004-023-00845-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 02/22/2023] [Indexed: 03/03/2023] Open
Abstract
Metal-organic frameworks (MOFs) are well known for their ability to adsorb various gases. The use of MOFs for the storage and release of biologically active gases, particularly nitric oxide (NO) and carbon monoxide (CO), has been a subject of interest. To elucidate the binding mechanisms and geometry of these gases, an in situ single crystal X-ray diffraction (scXRD) study using synchrotron radiation at Diamond Light Source has been performed on a set of MOFs that display promising gas adsorption properties. NO and CO, were introduced into activated Ni-CPO-27 and the related Co-4,6-dihydroxyisophthalate (Co-4,6-dhip). Both MOFs show strong binding affinity towards CO and NO, however CO suffers more from competitive co-adsorption of water. Additionally, we show that morphology can play an important role in the ease of dehydration for these two systems.
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5
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Palomba JM, Saygin V, Brown KA. Experimental observation of metal-organic framework-polymer interaction forces and intercalation. Chem Commun (Camb) 2023; 59:290-293. [PMID: 36477153 DOI: 10.1039/d2cc06381f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
We attach a MOF crystallite to an atomic force microscope cantilever to realize a system for rapidly and quantitatively studying the interaction between single-crystal MOFs and polymer films. Using this method, we find evidence of polymer intercalation into MOF pores. This approach can accelerate composite design.
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Affiliation(s)
- Joseph M Palomba
- Soldier Protection Directorate, U.S. Army Combat Capabilities Development Command Soldier Center, Natick, MA, 01760, USA
| | - Verda Saygin
- Department of Mechanical Engineering, Boston University, 110 Cummington Mall, Boston, Massachusetts 02215, USA.
| | - Keith A Brown
- Department of Mechanical Engineering, Boston University, 110 Cummington Mall, Boston, Massachusetts 02215, USA. .,Physics Department and Division of Materials Science and Engineering, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, USA
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6
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Han D, Liu X, Wu S. Metal organic framework-based antibacterial agents and their underlying mechanisms. Chem Soc Rev 2022; 51:7138-7169. [PMID: 35866702 DOI: 10.1039/d2cs00460g] [Citation(s) in RCA: 66] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bacteria, as the most abundant living organisms, have always been a threat to human life until the development of antibiotics. However, with the wide use of antibiotics over a long time, bacteria have gradually gained tolerance to antibiotics, further aggravating threat to human beings and environmental safety significantly. In recent decades, new bacteria-killing methods based on metal ions, hyperthermia, free radicals, physical pricks, and the coordination of several multi-mechanisms have attracted increasing attention. Consequently, multiple types of new antibacterial agents have been developed. Among them, metal organic frameworks (MOFs) appear to play an increasingly important role. The unique characteristics of MOFs make them suitable multiple-functional platforms. By selecting the appropriate metastable coordination bonds, MOFs can act as reservoirs and release antibacterial metal ions or organic linkers; by constructing a porous structure, MOFs can act as carriers for multiple types of agents and achieve slow and sustained release; and by designing their composition and the pore structure precisely, MOFs can be endowed with properties to produce heat and free radicals under stimulation. Importantly, in combination with other materials, MOFs can act as a platform to kill bacteria effectively through the synergistic effect of multiple types of mechanisms. In this review, we focus on the recent development of MOF-based antibacterial agents, which are classified according to their antibacterial mechanisms.
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Affiliation(s)
- Donglin Han
- College of Materials Science and Engineering, Jilin Institute of Chemical Technology, Jilin, 132022, China.
| | - Xiangmei Liu
- School of Life Science and Health Engineering, Hebei University of Technology, Xiping Avenue 5340, Beichen District, Tianjin, 300401, China
| | - Shuilin Wu
- School of Materials Science & Engineering, Peking University, Beijing, 100871, China.
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7
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Chester AM, Castillo‐Blas C, Wondraczek L, Keen DA, Bennett TD. Materials Formed by Combining Inorganic Glasses and Metal‐Organic Frameworks. Chemistry 2022; 28:e202200345. [PMID: 35416352 PMCID: PMC9400909 DOI: 10.1002/chem.202200345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Indexed: 11/08/2022]
Abstract
Here, we propose the combination of glassy or crystalline metal‐organic frameworks (MOFs) with inorganic glasses to create novel hybrid composites and blends.The motivation behind this new composite approach is to improve the processability issues and mechanical performance of MOFs, whilst maintaining their ubiquitous properties. Herein, the precepts of successful composite formation and pairing of MOF and glass MOFs with inorganic glasses are presented. Focus is also given to the synthetic routes to such materials and the challenges anticipated in both their production and characterisation. Depending on their chemical nature, materials are classified as crystalline MOF‐glass composites and blends. Additionally, the potential properties and applications of these two classes of materials are considered, the key aim being the retention of beneficial properties of both components, whilst circumventing their respective drawbacks.
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Affiliation(s)
- Ashleigh M. Chester
- Department of Materials Science and Metallurgy University of Cambridge 27 Charles Babbage Road CB3 0FS Cambridge UK
| | - Celia Castillo‐Blas
- Department of Materials Science and Metallurgy University of Cambridge 27 Charles Babbage Road CB3 0FS Cambridge UK
| | - Lothar Wondraczek
- Otto Schott Institute Materials Research University of Jena Fraunhoferstrasse 6 07743 Jena Germany
| | - David A. Keen
- ISIS Facility Rutherford Appleton Laboratory Harwell Campus OX11, 0DE, Didcot Oxfordshire UK
| | - Thomas D. Bennett
- Department of Materials Science and Metallurgy University of Cambridge 27 Charles Babbage Road CB3 0FS Cambridge UK
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8
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Gutiérrez M, Zhang Y, Tan JC. Confinement of Luminescent Guests in Metal–Organic Frameworks: Understanding Pathways from Synthesis and Multimodal Characterization to Potential Applications of LG@MOF Systems. Chem Rev 2022; 122:10438-10483. [PMID: 35427119 PMCID: PMC9185685 DOI: 10.1021/acs.chemrev.1c00980] [Citation(s) in RCA: 54] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
![]()
This
review gives an authoritative, critical, and accessible overview
of an emergent class of fluorescent materials termed “LG@MOF”,
engineered from the nanoscale confinement of luminescent guests (LG)
in a metal–organic framework (MOF) host, realizing a myriad
of unconventional materials with fascinating photophysical and photochemical
properties. We begin by summarizing the synthetic methodologies and
design guidelines for representative LG@MOF systems, where the major
types of fluorescent guest encompass organic dyes, metal ions, metal
complexes, metal nanoclusters, quantum dots, and hybrid perovskites.
Subsequently, we discuss the methods for characterizing the resultant
guest–host structures, guest loading, photophysical properties,
and review local-scale techniques recently employed to elucidate guest
positions. A special emphasis is paid to the pros and cons of the
various methods in the context of LG@MOF. In the following section,
we provide a brief tutorial on the basic guest–host phenomena,
focusing on the excited state events and nanoscale confinement effects
underpinning the exceptional behavior of LG@MOF systems. The review
finally culminates in the most striking applications of LG@MOF materials,
particularly the “turn-on” type fluorochromic chemo-
and mechano-sensors, noninvasive thermometry and optical pH sensors,
electroluminescence, and innovative security devices. This review
offers a comprehensive coverage of general interest to the multidisciplinary
materials community to stimulate frontier research in the vibrant
sector of light-emitting MOF composite systems.
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Affiliation(s)
- Mario Gutiérrez
- Multifunctional Materials & Composites (MMC) Laboratory, Department of Engineering Science, University of Oxford, Parks Road, Oxford OX1 3PJ, United Kingdom
- Departamento de Química Física, Facultad de Ciencias Ambientales y Bioquímica, INAMOL, Universidad de Castilla-La Mancha, Avenida Carlos III, S/N, 45071 Toledo, Spain
| | - Yang Zhang
- Multifunctional Materials & Composites (MMC) Laboratory, Department of Engineering Science, University of Oxford, Parks Road, Oxford OX1 3PJ, United Kingdom
| | - Jin-Chong Tan
- Multifunctional Materials & Composites (MMC) Laboratory, Department of Engineering Science, University of Oxford, Parks Road, Oxford OX1 3PJ, United Kingdom
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9
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Nong W, Wu J, Ghiladi RA, Guan Y. The structural appeal of metal–organic frameworks in antimicrobial applications. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214007] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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10
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Vornholt SM, Elliott CG, Rice CM, Russell SE, Kerr PJ, Rainer DN, Mazur M, Warren MR, Wheatley PS, Morris RE. Controlled Synthesis of Large Single Crystals of Metal-Organic Framework CPO-27-Ni Prepared by a Modulation Approach: In situ Single-Crystal X-ray Diffraction Studies. Chemistry 2021; 27:8537-8546. [PMID: 33783895 PMCID: PMC8251849 DOI: 10.1002/chem.202100528] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Indexed: 12/14/2022]
Abstract
The size of single crystals of the metal-organic framework CPO-27-Ni was incrementally increased through a series of modulated syntheses. A novel linker modulated synthesis using 2,5-dihydroxyterephthalic acid and the isomeric ligand 4,6-dihydroxyisophthalic acid yielded large single crystals of CPO-27-Ni (∼70 μm). All materials were shown to have high crystallinity and phase purity through powder X-ray diffraction, electron microscopy methods, thermogravimetry, and compositional analysis. For the first time single-crystal structure analyses were carried out on CPO-27-Ni. High BET surface areas and nitric oxide (NO) release efficiencies were recorded for all materials. Large single crystals of CPO-27-Ni showed a prolonged NO release and proved suitable for in situ single-crystal diffraction experiments to follow the NO adsorption. An efficient activation protocol was developed, leading to a dehydrated structure after just 4 h, which subsequently was NO-loaded, leading to a first NO loaded single-crystal structural model of CPO-27-Ni.
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Affiliation(s)
| | | | - Cameron M. Rice
- University of St AndrewsNorth HaughKY16 9STSt AndrewsUnited Kingdom
| | | | - Peter J. Kerr
- University of St AndrewsNorth HaughKY16 9STSt AndrewsUnited Kingdom
| | - Daniel N. Rainer
- University of St AndrewsNorth HaughKY16 9STSt AndrewsUnited Kingdom
| | - Michal Mazur
- Department of Physical and Macromolecular ChemistryFaculty of SciencesCharles UniversityHlavova 8128 43Prague 2Czech Republic
| | - Mark R. Warren
- Diamond Light SourceHarwell Science and Innovation CampusDidcotOX11 0DEUnited Kingdom
| | - Paul S. Wheatley
- University of St AndrewsNorth HaughKY16 9STSt AndrewsUnited Kingdom
| | - Russell E. Morris
- University of St AndrewsNorth HaughKY16 9STSt AndrewsUnited Kingdom
- Department of Physical and Macromolecular ChemistryFaculty of SciencesCharles UniversityHlavova 8128 43Prague 2Czech Republic
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11
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Dang Y, Ruan L, Tian Y, Xu Z, Zhang W. Nitric Oxide Prodrug Delivery and Release Monitoring Based on a Galactose-Modified Multifunctional Nanoprobe. Anal Chem 2021; 93:7625-7634. [PMID: 34010568 DOI: 10.1021/acs.analchem.1c00287] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Nitric oxide (NO)-based cancer therapy has attracted much attention in recent years owing to its broad effects on cancer. Low concentrations of NO stimulate cancer cell progression, while its higher levels induce cell apoptosis, and thus, it has motivated the development of probes for in situ NO release monitoring. In this work, a galactose-modified benzothiadiazole-based fluorescent probe (GalNONP/C) was synthesized as both a NO-responsive nanoprobe and NO prodrug carrier. The probe exhibited far-red emission in the range from 550 to 800 nm, and the response showed acidity preference. The galactose on the probe enabled selective targeting of hepatocellular carcinoma (HCC) cells by binding to the asialoglycoprotein receptor (ASGPR) on the cell surface. The probe also delivered low-molecular weight NO prodrug JS-K into cells and monitored the real-time release of the generated NO. Furthermore, in vivo NO imaging with tumor targeting was demonstrated in HCC orthotopic transplantation nude mice and liver sections. Compared with the control experiment using a probe without NO prodrug loading, higher fluorescence response of NO was detected in the cell (3.0 times) and liver slices of the HCC tumor model (2.7 times). This strategy may pave the way to develop nanoprobes for in situ NO monitoring and therapy evaluation in NO-related cancer therapy.
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Affiliation(s)
- Yijing Dang
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
| | - Liting Ruan
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
| | - Yang Tian
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
| | - Zhiai Xu
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
| | - Wen Zhang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University, Shanghai 200062, China
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12
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Martínez-Ahumada E, Díaz-Ramírez ML, Velásquez-Hernández MDJ, Jancik V, Ibarra IA. Capture of toxic gases in MOFs: SO 2, H 2S, NH 3 and NO x. Chem Sci 2021; 12:6772-6799. [PMID: 34123312 PMCID: PMC8153083 DOI: 10.1039/d1sc01609a] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 04/28/2021] [Indexed: 12/11/2022] Open
Abstract
MOFs are promising candidates for the capture of toxic gases since their adsorption properties can be tuned as a function of the topology and chemical composition of the pores. Although the main drawback of MOFs is their vulnerability to these highly corrosive gases which can compromise their chemical stability, remarkable examples have demonstrated high chemical stability to SO2, H2S, NH3 and NO x . Understanding the role of different chemical functionalities, within the pores of MOFs, is the key for accomplishing superior captures of these toxic gases. Thus, the interactions of such functional groups (coordinatively unsaturated metal sites, μ-OH groups, defective sites and halogen groups) with these toxic molecules, not only determines the capture properties of MOFs, but also can provide a guideline for the desigh of new multi-functionalised MOF materials. Thus, this perspective aims to provide valuable information on the significant progress on this environmental-remediation field, which could inspire more investigators to provide more and novel research on such challenging task.
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Affiliation(s)
- Eva Martínez-Ahumada
- Laboratorio de Fisicoquímica y Reactividad de Superficies (LaFReS), Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México Circuito Exterior s/n, CU, Del. Coyoacán, 04510 Ciudad de México Mexico +52(55) 5622-4595
| | | | | | - Vojtech Jancik
- Universidad Nacional Autónoma de México, Instituto de Química, Ciudad Universitaria Ciudad de México Mexico
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM Carr. Toluca-Atlacomulco Km 14.5 Toluca Estado de México 50200 Mexico
| | - Ilich A Ibarra
- Laboratorio de Fisicoquímica y Reactividad de Superficies (LaFReS), Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México Circuito Exterior s/n, CU, Del. Coyoacán, 04510 Ciudad de México Mexico +52(55) 5622-4595
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