1
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Amyar H, Avci C, Boissière C, Cattoni A, Besbes M, Faustini M. Thermo-temporal physisorption in metal-organic frameworks probed by cyclic thermo-ellipsometry. Chem Commun (Camb) 2024; 60:5940-5943. [PMID: 38757715 DOI: 10.1039/d4cc01301h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
Temperature-induced sorption in porous materials is a well-known process. What is more challenging is to determine how the rate at which temperature is varied affects these processes. To address this question, we introduce a methodology called "cyclic thermo-ellipsometry" to explore the thermo-kinetics of vapor physisorption in metal-organic framework films.
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Affiliation(s)
- Hajar Amyar
- Sorbonne Université, CNRS, Laboratoire Chimie de la Matière Condensée de Paris (LCMCP), F-75005 Paris, France.
| | - Civan Avci
- Sorbonne Université, CNRS, Laboratoire Chimie de la Matière Condensée de Paris (LCMCP), F-75005 Paris, France.
| | - Cédric Boissière
- Sorbonne Université, CNRS, Laboratoire Chimie de la Matière Condensée de Paris (LCMCP), F-75005 Paris, France.
| | - Andrea Cattoni
- Centre de Nanosciences et de Nanotechnologies (C2N), CNRS UMR 9001, Université Paris-Saclay, Palaiseau, France
- Dipartimento di Fisica, Politecnico di Milano, Via Giuseppe Colombo, Milano 20133, Italy
| | - Mondher Besbes
- Université Paris-Saclay, Institut d'Optique Graduate School, CNRS, Laboratoire Charles Fabry, 91127 Palaiseau, France
| | - Marco Faustini
- Sorbonne Université, CNRS, Laboratoire Chimie de la Matière Condensée de Paris (LCMCP), F-75005 Paris, France.
- Institut Universitaire de France (IUF), 75231 Paris, France
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2
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Bazazi S, Hashemi E, Mohammadjavadi M, Saeb MR, Liu Y, Huang Y, Xiao H, Seidi F. Metal-organic framework (MOF)/C-dots and covalent organic framework (COF)/C-dots hybrid nanocomposites: Fabrications and applications in sensing, medical, environmental, and energy sectors. Adv Colloid Interface Sci 2024; 328:103178. [PMID: 38735101 DOI: 10.1016/j.cis.2024.103178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 03/31/2024] [Accepted: 05/03/2024] [Indexed: 05/14/2024]
Abstract
Developing new hybrid materials is critical for addressing the current needs of the world in various fields, such as energy, sensing, health, hygiene, and others. C-dots are a member of the carbon nanomaterial family with numerous applications. Aggregation is one of the barriers to the performance of C-dots, which causes luminescence quenching, surface area decreases, etc. To improve the performance of C-dots, numerous matrices including metal-organic frameworks (MOFs), covalent-organic frameworks (COFs), and polymers have been composited with C-dots. The porous crystalline structures, which are constituents of metal nodes and organic linkers (MOFs) or covalently attached organic units (COFs) provide privileged features such as high specific surface area, tunable structures, and pore diameters, modifiable surface, high thermal, mechanical, and chemical stabilities. Also, the MOFs and COFs protect the C-dots from the environment. Therefore, MOF/C-dots and COF/C-dots composites combine their features while retaining topological properties and improving performances. In this review, we first compare MOFs with COFs as matrices for C-dots. Then, the recent progress in developing hybrid MOFs/C-dots and COFs/C-dots composites has been discussed and their applications in various fields have been explained briefly.
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Affiliation(s)
- Sina Bazazi
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Esmaeil Hashemi
- Department of Chemistry, Faculty of Science, University of Guilan, PO Box 41335-1914, Rasht, Iran
| | - Mahdi Mohammadjavadi
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Mohammad Reza Saeb
- Department of Pharmaceutical Chemistry, Medical University of Gdańsk, J. Hallera 107, 80-416 Gdańsk, Poland
| | - Yuqian Liu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Yang Huang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Huining Xiao
- Department of Chemical Engineering, University of New Brunswick, Fredericton, New Brunswick E3B 5A3, Canada.
| | - Farzad Seidi
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China.
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3
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Attallah AG, Bon V, Maity K, Zaleski R, Hirschmann E, Kaskel S, Wagner A. Revisiting Metal-Organic Frameworks Porosimetry by Positron Annihilation: Metal Ion States and Positronium Parameters. J Phys Chem Lett 2024; 15:4560-4567. [PMID: 38638089 PMCID: PMC11071070 DOI: 10.1021/acs.jpclett.4c00762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 04/08/2024] [Accepted: 04/11/2024] [Indexed: 04/20/2024]
Abstract
Metal-organic frameworks (MOFs) stand as pivotal porous materials with exceptional surface areas, adaptability, and versatility. Positron Annihilation Lifetime Spectroscopy (PALS) is an indispensable tool for characterizing MOF porosity, especially micro- and mesopores in both open and closed phases. Notably, PALS offers porosity insights independent of probe molecules, which is vital for detailed characterization without structural transformations. This study explores how metal ion states in MOFs affect PALS results. We find significant differences in measured porosity due to paramagnetic or oxidized metal ions compared to simulated values. By analyzing CPO-27(M) (M = Mg, Co, Ni), with identical pore dimensions, we observe distinct PALS data alterations based on metal ions. Paramagnetic Co and Ni ions hinder and quench positronium (Ps) formation, resulting in smaller measured pore volumes and sizes. Mg only quenches Ps, leading to underestimated pore sizes without volume distortion. This underscores the metal ions' pivotal role in PALS outcomes, urging caution in interpreting MOF porosity.
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Affiliation(s)
- Ahmed G. Attallah
- Institute
of Radiation Physics, Helmholtz-Zentrum
Dresden-Rossendorf, 01328 Dresden, Germany
- Physics
Department, Faculty of Science, Minia University, P.O. 61519, Minia, Egypt
| | - Volodymyr Bon
- Chair
of Inorganic Chemistry I, Technische Universität
Dresden, 01062 Dresden, Germany
| | - Kartik Maity
- Chair
of Inorganic Chemistry I, Technische Universität
Dresden, 01062 Dresden, Germany
| | - Radosław Zaleski
- Institute
of Physics, Maria Curie-Sklodowska University, 20-031 Lublin, Poland
| | - Eric Hirschmann
- Institute
of Radiation Physics, Helmholtz-Zentrum
Dresden-Rossendorf, 01328 Dresden, Germany
| | - Stefan Kaskel
- Chair
of Inorganic Chemistry I, Technische Universität
Dresden, 01062 Dresden, Germany
| | - Andreas Wagner
- Institute
of Radiation Physics, Helmholtz-Zentrum
Dresden-Rossendorf, 01328 Dresden, Germany
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4
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Yu S, Li C, Zhao S, Chai M, Hou J, Lin R. Recent advances in the interfacial engineering of MOF-based mixed matrix membranes for gas separation. NANOSCALE 2024; 16:7716-7733. [PMID: 38536054 DOI: 10.1039/d4nr00096j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
The membrane process stands as a promising and transformative technology for efficient gas separation due to its high energy efficiency, operational simplicity, low environmental impact, and easy up-and-down scaling. Metal-organic framework (MOF)-polymer mixed matrix membranes (MMMs) combine MOFs' superior gas-separation performance with polymers' processing versatility, offering the opportunity to address the limitations of pure polymer or inorganic membranes for large-scale integration. However, the incompatibility between the rigid MOFs and flexible polymer chains poses a challenge in MOF MMM fabrication, which can cause issues such as MOF agglomeration, sedimentation, and interfacial defects, substantially weakening membrane separation efficiency and mechanical properties, particularly gas separation. This review focuses on engineering MMMs' interfaces, detailing recent strategies for reducing interfacial defects, improving MOF dispersion, and enhancing MOF loading. Advanced characterisation techniques for understanding membrane properties, specifically the MOF-polymer interface, are outlined. Lastly, it explores the remaining challenges in MMM research and outlines potential future research directions.
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Affiliation(s)
- Shuwen Yu
- School of Chemistry and Chemical Engineering, Suzhou University, Suzhou, 234000, China
- School of Chemical Engineering, The University of Queensland, St Lucia, QLD, 4072, Australia.
| | - Conger Li
- School of Chemical Engineering, The University of Queensland, St Lucia, QLD, 4072, Australia.
- School of Physical Science and Technology, Shanghai Tech University, Shanghai, 201210, China
| | - Shuke Zhao
- School of Chemical Engineering, The University of Queensland, St Lucia, QLD, 4072, Australia.
| | - Milton Chai
- School of Chemical Engineering, The University of Queensland, St Lucia, QLD, 4072, Australia.
| | - Jingwei Hou
- School of Chemical Engineering, The University of Queensland, St Lucia, QLD, 4072, Australia.
| | - Rijia Lin
- School of Chemical Engineering, The University of Queensland, St Lucia, QLD, 4072, Australia.
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5
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Jiang Q, Chen C, Chai N, Guo Q, Chen T, Ma X, Yi FY. In Situ Exfoliation Growth Strategy Realizing Controlled Synthesis of 3D to 2D MOF Materials as High-Performance Electrochemical Biosensors. Inorg Chem 2024; 63:4636-4645. [PMID: 38394612 DOI: 10.1021/acs.inorgchem.3c04218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2024]
Abstract
Two-dimensional (2D) metal-organic framework (MOF) nanosheets with large surface area, ultrathin thickness, and highly accessible active sites have attracted great research attention. Developing efficient approaches to realize the controllable synthesis of well-defined 2D MOFs with a specific composition and morphology is critical. However, it is still a significant challenge to construct thin and uniform 2D MOF nanosheets and resolve the reagglomeration as well as poor stability of target 2D MOF products. Here, an "in situ exfoliation growth" strategy is proposed, where a one-step synthetic process can realize the successful fabrication of PBA/MIL-53(NiFe)/NF nanosheets on the surface of nickel foam (NF) via in situ conversion and exfoliation growth strategies. The PBA/MIL-53(NiFe)/NF nanosheets combine the individual advantages of MOFs, Prussian blue analogues (PBAs), and 2D materials. As expected, the resulting PBA/MIL-53(NiFe)/NF as a glucose electrode exhibits an extremely high sensitivity of 25.74 mA mM-1 cm-2 in a very wide concentration range of 180 nM to 4.8 μM. The present exciting work provides a simple and effective strategy for the construction of high-performance nonenzymatic glucose electrochemical biosensors.
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Affiliation(s)
- Qiao Jiang
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, Zhejiang, P. R. China
| | - Chen Chen
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, Zhejiang, P. R. China
| | - Ning Chai
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, Zhejiang, P. R. China
| | - Qingqing Guo
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, Zhejiang, P. R. China
| | - Tianyu Chen
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, Zhejiang, P. R. China
| | - Xinghua Ma
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, Zhejiang, P. R. China
| | - Fei-Yan Yi
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, Zhejiang, P. R. China
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6
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Füredi M, Manzano CV, Marton A, Fodor B, Alvarez-Fernandez A, Guldin S. Beyond the Meso/Macroporous Boundary: Extending Capillary Condensation-Based Pore Size Characterization in Thin Films Through Tailored Adsorptives. J Phys Chem Lett 2024; 15:1420-1427. [PMID: 38290522 PMCID: PMC10860133 DOI: 10.1021/acs.jpclett.3c03442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 01/16/2024] [Accepted: 01/19/2024] [Indexed: 02/01/2024]
Abstract
The characterization of thin films containing nanopores with diameters exceeding 50 nm poses significant challenges, especially when deploying sorption-based techniques. Conventional volumetric physisorption or mercury intrusion methods have limited applicability in thin films due to constraints in sample preparation and nondestructive testing. In this context, ellipsometric porosimetry represents a viable alternative, leveraging its optical sensitivity to thin films. With existing setups relying on the capillary condensation of volatile compounds such as water, applicability is typically restricted to pore dimensions <50 nm. In this study, we introduce two high-molar-mass hydrocarbon adsorptives, namely ethylbenzene and n-nonane. These adsorptives exhibit substantial potential in improving the accuracy of physisorption measurements beyond mesoporosity (i.e., >50 nm). Specifically, with n-nonane, applicability is extended up to 80 nm pores. Our measurement guidelines propose a nondestructive, expeditious (<60 min), low-pressure (<0.03 bar) approach to investigate nanoporous thin films with potential adaptability to diverse structural architectures.
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Affiliation(s)
- Máté Füredi
- Department
of Chemical Engineering, University College
London, Torrington Place, London, WC1E 7JE, United Kingdom
- Semilab
Co. Ltd., Prielle Kornélia u. 2, H-1117 Budapest, Hungary
| | - Cristina V. Manzano
- Instituto
de Micro y Nanotecnología, IMN-CNM, CSIC (CEI UAM+CSIC), Isaac Newton 8, E-28760 Madrid, Spain
| | - András Marton
- Semilab
Co. Ltd., Prielle Kornélia u. 2, H-1117 Budapest, Hungary
| | - Bálint Fodor
- Semilab
Co. Ltd., Prielle Kornélia u. 2, H-1117 Budapest, Hungary
| | - Alberto Alvarez-Fernandez
- Centro
de Física de Materiales (CFM) (CSIC−UPV/EHU) −
Materials Physics Center (MPC), Paseo Manuel de Lardizabal 5, 20018 San Sebastián, Spain
| | - Stefan Guldin
- Department
of Chemical Engineering, University College
London, Torrington Place, London, WC1E 7JE, United Kingdom
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7
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Burke DW, Jiang Z, Livingston AG, Dichtel WR. 2D Covalent Organic Framework Membranes for Liquid-Phase Molecular Separations: State of the Field, Common Pitfalls, and Future Opportunities. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2300525. [PMID: 37014260 DOI: 10.1002/adma.202300525] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 03/21/2023] [Indexed: 06/19/2023]
Abstract
2D covalent organic frameworks (2D COFs) are attractive candidates for next-generation membranes due to their robust linkages and uniform, tunable pores. Many publications have claimed to achieve selective molecular transport through COF pores, but reported performance metrics for similar networks vary dramatically, and in several cases the reported experiments are inadequate to support such conclusions. These issues require a reevaluation of the literature. Published examples of 2D COF membranes for liquid-phase separations can be broadly divided into two categories, each with common performance characteristics: polycrystalline COF films (most >1 µm thick) and weakly crystalline or amorphous films (most <500 nm thick). Neither category has demonstrated consistent relationships between the designed COF pore structure and separation performance, suggesting that these imperfect materials do not sieve molecules through uniform pores. In this perspective, rigorous practices for evaluating COF membrane structures and separation performance are described, which will facilitate their development toward molecularly precise membranes capable of performing previously unrealized chemical separations. In the absence of this more rigorous standard of proof, reports of COF-based membranes should be treated with skepticism. As methods to control 2D polymerization improve, precise 2D polymer membranes may exhibit exquisite and energy efficient performance relevant for contemporary separation challenges.
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Affiliation(s)
- David W Burke
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
| | - Zhiwei Jiang
- School of Engineering and Materials Science, Queen Mary University of London, London, E1 4NS, UK
- Department of Membrane Research, Exactmer Limited, Londoneast-uk Business and Technical Park, Yew Tree Avenue, Dagenham, RM10 7FN, UK
| | - Andrew G Livingston
- School of Engineering and Materials Science, Queen Mary University of London, London, E1 4NS, UK
| | - William R Dichtel
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
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8
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Keppler NC, Hannebauer A, Hindricks KDJ, Zailskas S, Schaate A, Behrens P. Transmission Porosimetry Study on High-quality Zr-fum-MOF Thin Films. Chem Asian J 2023; 18:e202300699. [PMID: 37713072 DOI: 10.1002/asia.202300699] [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: 08/10/2023] [Revised: 09/12/2023] [Accepted: 09/12/2023] [Indexed: 09/16/2023]
Abstract
Crystalline Zr-fum-MOF (MOF-801) thin films of high quality are prepared on glass and silicon substrates by direct growth under solvothermal conditions. The synthesis is described in detail and the influence of different synthesis parameters such as temperature, precursor concentration, and the substrate type on the quality of the coatings is illustrated. Zr-fum-MOF thin films are characterized in terms of crystallinity, porosity, and homogeneity. Dense films of optical quality are obtained. The sorption behavior of the thin films is studied with various adsorptives. It can be easily monitored by measuring the transmission of the films in gas flows of different compositions. This simple transmission measurement at only one wavelength allows a very fast evaluation of the adsorption properties of thin films as compared to traditional sorption methods. The sorption behavior of the thin films is compared with the sorption properties of Zr-fum-MOF powder samples.
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Affiliation(s)
- Nils Christian Keppler
- Leibniz University Hannover, Institute of Inorganic Chemistry, Callinstr. 9, 30167, Hannover, Germany
- Leibniz University Hannover Cluster of Excellence PhoenixD (Photonics, Optics and Engineering - Innovation Across Disciplines), Welfengarten 1, 30167, Hannover, Germany
| | - Adrian Hannebauer
- Leibniz University Hannover, Institute of Inorganic Chemistry, Callinstr. 9, 30167, Hannover, Germany
| | - Karen Deli Josephine Hindricks
- Leibniz University Hannover, Institute of Inorganic Chemistry, Callinstr. 9, 30167, Hannover, Germany
- Leibniz University Hannover Cluster of Excellence PhoenixD (Photonics, Optics and Engineering - Innovation Across Disciplines), Welfengarten 1, 30167, Hannover, Germany
| | - Saskia Zailskas
- Leibniz University Hannover, Institute of Inorganic Chemistry, Callinstr. 9, 30167, Hannover, Germany
| | - Andreas Schaate
- Leibniz University Hannover, Institute of Inorganic Chemistry, Callinstr. 9, 30167, Hannover, Germany
- Leibniz University Hannover Cluster of Excellence PhoenixD (Photonics, Optics and Engineering - Innovation Across Disciplines), Welfengarten 1, 30167, Hannover, Germany
| | - Peter Behrens
- Leibniz University Hannover, Institute of Inorganic Chemistry, Callinstr. 9, 30167, Hannover, Germany
- Leibniz University Hannover Cluster of Excellence PhoenixD (Photonics, Optics and Engineering - Innovation Across Disciplines), Welfengarten 1, 30167, Hannover, Germany
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9
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Nelliyil RB, Mor J, Kolay S, Sharma SK. Capture of Volatile Iodine Gas and Identification of Adsorption Sites in the Pore Network of Unsubstituted Imidazole Linker-Incorporated Zeolitic Imidazolate Framework-8. ACS APPLIED MATERIALS & INTERFACES 2023; 15:49312-49320. [PMID: 37816158 DOI: 10.1021/acsami.3c11858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/12/2023]
Abstract
The incorporation of unsubstituted imidazole (Im) in zeolitic imidazolate framework-8 (ZIF-8) crystallized in sodalite topology is proposed to improve gas capture and gas separation performance drastically. However, the incorporation of unsubstituted Im in ZIF-8 has remained challenging due to the thermodynamic instability of zinc and Im bonding in sodalite topology. We have incorporated up to 24.4 (mol %) Im linker in highly crystalline ZIF-8 with similar morphology and sodalite topology using a delayed linker addition strategy at room temperature. Im incorporation brings significant tuning to the pore architecture of ZIF-8, as confirmed by positron annihilation lifetime spectroscopy. The modifications in the pore architecture are primarily due to linker defects produced in the frameworks during crystallization and the elimination of steric hindrance due to the absence of a methyl group on Im. The Im-incorporated ZIF-8 shows significant enhancement in iodine capture as well as higher crystal structure stability under iodine vapor exposure as compared to pristine ZIF-8. Through ortho-positronium interaction with the adsorbed molecular iodine in the pore network of the frameworks, it is confirmed that iodine is preferentially adsorbed at cavity and intercrystalline voids, whereas aperture sites remain unoccupied by iodine molecules.
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Affiliation(s)
- Renjith B Nelliyil
- Radiochemistry Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400 094, India
| | - Jaideep Mor
- Radiochemistry Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
| | - Siddhartha Kolay
- Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
| | - Sandeep Kumar Sharma
- Radiochemistry Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400 094, India
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10
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Trung NT, Duong NT, Hien NQ, Tap TD, Thanh ND. Investigation of ortho-positronium annihilation for porous materials with different geometries and topologies. Sci Rep 2023; 13:13707. [PMID: 37607980 PMCID: PMC10444843 DOI: 10.1038/s41598-023-40901-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 08/18/2023] [Indexed: 08/24/2023] Open
Abstract
In this work, we present the results of the ortho-positronium (o-Ps) annihilation lifetimes and nitrogen adsorption measurements for different porous materials and an approach for describing the annihilation of o-Ps in a pore, which results in a surface-volume formula (SVF) for calculating the pore-related o-Ps lifetime. This proposed formula gives the relationship between the o-Ps annihilation rate and the effective pore radius, bulk composition, and pore structure, including pore geometry and topology. The pore-related o-Ps lifetimes of different materials calculated by the SVF are consistent with experimental results for both micro- and mesopores (and macropores) with different geometries and topologies. The SVF is convenient for calculations of pore dimensions for many cases of metal organic frameworks and zeolites. This approach enables us to fully explain the temperature dependence of the o-Ps annihilation lifetime over a wide temperature range, 20-700 K.
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Affiliation(s)
- Nguyen Thanh Trung
- Institute of Physics, Vietnam Academy of Science and Technology, Ba Dinh, Hanoi, Vietnam.
| | - Nguyen Thuy Duong
- Vietnam Japan University, Vietnam National University, Hanoi, Vietnam
| | - Nguyen Quoc Hien
- Vietnam Atomic Energy Institute, 59 Ly Thuong Kiet, Hanoi, Vietnam
| | - Tran Duy Tap
- Faculty of Materials Science and Technology, University of Science, Vietnam National University, Ho Chi Minh City, Vietnam
| | - Nguyen Duc Thanh
- Research and Development Center for Advanced Technology, Cau Giay, Hanoi, Vietnam.
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11
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Mor J, Nelliyil RB, Sharma SK. Fine-Tuning of the Pore Aperture and Framework Flexibility of Mixed-Metal (Zn/Co) Zeolitic Imidazolate Framework-8: An In Situ Positron Annihilation Lifetime Spectroscopy Study under CO 2 Gas Pressure. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:10056-10065. [PMID: 37436156 DOI: 10.1021/acs.langmuir.3c00996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/13/2023]
Abstract
The mixed-metal (Zn/Co) strategy has been used to enhance the gas separation selectivity of zeolitic imidazolate framework-8 (ZIF-8)-based membranes. The enhancement in selectivity has been attributed to possible modifications in the grain boundary structure, pore architecture, and flexibility of the frameworks. In the present study, we used in situ positron annihilation lifetime spectroscopy (PALS) under varying CO2 pressure to investigate the tuning of the pore architecture and framework flexibility of mixed-metal (Zn/Co) ZIF-8 frameworks with varying Co contents. The random distribution of Zn and Co metal nodes within the highly crystalline frameworks having an SOD topology was established using electron microscopy, Fourier transform infrared spectroscopy, and Raman spectroscopy. The inherent aperture as well as cavity size of the frameworks, and the pore interconnectivity to the outer surface, were observed to vary with the Co content in ZIF-8 due to the random distribution of Zn and Co metal nodes in the frameworks. The aperture size is reduced with the incorporation of an additional metal (Zn or Co) in ZIF-67 or ZIF-8, respectively. The aperture size remains the smallest for a lower Co content (∼0.20) in ZIF-8. The framework flexibility determined by in situ PALS measurements under CO2 pressure continuously reduces with increasing Co content in ZIF-8. A smaller aperture size as well as low flexibility of ZIF-8 with a low Co content is seen to be directly correlated to a higher separation selectivity of membranes prepared with this mixed-metal composition.
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Affiliation(s)
- Jaideep Mor
- Radiochemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Renjith B Nelliyil
- Radiochemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India
- Homi Bhabha National Institute, Mumbai 400094, India
| | - Sandeep Kumar Sharma
- Radiochemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India
- Homi Bhabha National Institute, Mumbai 400094, India
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12
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Attallah AG, Prucnal S, Buttering M, Hirschmann E, Koehler N, Schulz SE, Wagner A, Liedke MO. Millisecond flash lamp curing for porosity generation in thin films. Sci Rep 2023; 13:7765. [PMID: 37173360 PMCID: PMC10181987 DOI: 10.1038/s41598-023-34748-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Accepted: 05/06/2023] [Indexed: 05/15/2023] Open
Abstract
Flash lamp annealing (FLA) with millisecond pulse durations is reported as a novel curing method for pore precursor's degradation in thin films. A case study on the curing of dielectric thin films is presented. FLA-cured films are being investigated by means of positron annihilation spectroscopy (PAS) and Fourier-transform infrared (FTIR) spectroscopy in order to quantify the nm-scale porosity and post-treatment chemistry, respectively. Results from positron annihilation reveal the onset of the formation of porous voids inside the samples at 6 ms flash treatment time. Moreover, parameter's adjustment (flash duration and energy density) allows for identifying the optimum conditions of effective curing. Within such a systematic investigation, positron results indicate that FLA is able to decompose the porogen (pore precursors) and to generate interconnected (open porosity) or isolated pore networks with self-sealed pores in a controllable way. Furthermore, FTIR results demonstrate the structural evolution after FLA, that help for setting the optimal annealing conditions whereby only a residual amount of porogen remains and at the same time a well-densified matrix, and a hydrophobic porous structures are created. Raman spectroscopy suggests that the curing-induced self-sealing layer developed at the film surface is a graphene oxide-like layer, which could serve as the outside sealing of the pore network from intrusions.
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Affiliation(s)
- Ahmed G Attallah
- Institute of Radiation Physics, Helmholtz-Zentrum Dresden-Rossendorf, 01328, Dresden, Germany.
- Physics Department, Faculty of Science, Minia University, Minia, 61519, Egypt.
| | - Slawomir Prucnal
- Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf, 01328, Dresden, Germany
| | - Maik Buttering
- Institute of Radiation Physics, Helmholtz-Zentrum Dresden-Rossendorf, 01328, Dresden, Germany
| | - Eric Hirschmann
- Institute of Radiation Physics, Helmholtz-Zentrum Dresden-Rossendorf, 01328, Dresden, Germany
| | - Nicole Koehler
- Center for Microtechnologies, Chemnitz University of Technology, 09107, Chemnitz, Germany
| | - Stefan E Schulz
- Center for Microtechnologies, Chemnitz University of Technology, 09107, Chemnitz, Germany
| | - Andreas Wagner
- Institute of Radiation Physics, Helmholtz-Zentrum Dresden-Rossendorf, 01328, Dresden, Germany
| | - Maciej O Liedke
- Institute of Radiation Physics, Helmholtz-Zentrum Dresden-Rossendorf, 01328, Dresden, Germany.
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13
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Jin Y, Guo Y, Yang J, Chu X, Huang X, Wang Q, Zeng Y, Su L, Lu S, Wang C, Yang J, Qu J, Yang Y, Wang B. A Novel "Inside-Out" Intraocular Nanomedicine Delivery Mode for Nanomaterials' Biological Effect Enhanced Choroidal Neovascularization Occlusion and Microenvironment Regulation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2209690. [PMID: 36527723 DOI: 10.1002/adma.202209690] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 12/08/2022] [Indexed: 06/17/2023]
Abstract
Photodynamic therapy (PDT) is commonly used in choroidal neovascularization (CNV) treatment due to the superior light transmittance of the eye. However, PDT often leads to surrounding tissue damage and further microenvironmental deterioration, including exacerbated hypoxia, inflammation, and secondary neovascularization. In this work, Pt nanoparticles (NPs) and Au NPs decorated zeolitic imidazolate framework-8 nanoplatform is developed to load indocyanine green for precise PDT and microenvironment amelioration, which can penetrate the internal limiting membrane through Müller cells endocytosis and target to CNV by surface-grafted cyclo(Arg-Gly-Asp-d-Phe-Lys) after intravitreal injection. The excessive H2 O2 in the CNV microenvironment is catalyzed by catalase-like Pt NPs for hypoxia relief and enhanced PDT occlusion of neovascular. Meanwhile, Au NPs show significant anti-inflammatory and anti-angiogenesis properties in regulating macrophages and blocking vascular endothelial growth factor (VEGF). Compared with verteporfin treatment, the mRNA expressions of hypoxia-inducible factor-1α and VEGF in the nanoplatform group are downregulated by 90.2% and 81.7%, respectively. Therefore, the nanoplatform realizes a comprehensive CNV treatment effect based on the high drug loading capacity and biosafety. The CNV treatment mode developed in this work provides a valuable reference for treating other diseases with similar physiological barriers that limit drug delivery and similar microenvironment.
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Affiliation(s)
- Yingying Jin
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325000, P. R. China
| | - Yishun Guo
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325000, P. R. China
| | - Jianhua Yang
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325000, P. R. China
| | - Xiaoying Chu
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325000, P. R. China
| | - Xiaomin Huang
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325000, P. R. China
| | - Qingying Wang
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325000, P. R. China
| | - Yanlin Zeng
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325000, P. R. China
| | - Lili Su
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325000, P. R. China
| | - Si Lu
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325000, P. R. China
| | - Chenyang Wang
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325000, P. R. China
| | - Jie Yang
- College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
- School of Life Sciences, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Jia Qu
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325000, P. R. China
- National Engineering Research Center of Ophthalmology and Optometry, Wenzhou, 325027, P. R. China
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Wenzhou Medical University, Wenzhou, 325027, P. R. China
- NMPA Key Laboratory for Clinical Research and Evaluation of Medical Devices and Drug for Ophthalmic Diseases, Wenzhou, 325027, P. R. China
| | - Yingwei Yang
- College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
- China-Japan Union Hospital of Jilin University, Jilin University, Changchun, 130012, P. R. China
| | - Bailiang Wang
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325000, P. R. China
- National Engineering Research Center of Ophthalmology and Optometry, Wenzhou, 325027, P. R. China
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Wenzhou Medical University, Wenzhou, 325027, P. R. China
- NMPA Key Laboratory for Clinical Research and Evaluation of Medical Devices and Drug for Ophthalmic Diseases, Wenzhou, 325027, P. R. China
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14
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Salehifar N, Holtmann P, Hungund AP, Dinani HS, Gerald RE, Huang J. Calculations of adsorption-dependent refractive indices of metal-organic frameworks for gas sensing applications. OPTICS EXPRESS 2023; 31:7947-7965. [PMID: 36859915 PMCID: PMC10018789 DOI: 10.1364/oe.478427] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 12/20/2022] [Accepted: 12/27/2022] [Indexed: 06/18/2023]
Abstract
Detection of volatile organic compounds (VOCs) is one of the most challenging tasks in modelling breath analyzers because of their low concentrations (parts-per-billion (ppb) to parts-per-million (ppm)) in breath and the high humidity levels in exhaled breaths. The refractive index is one of the crucial optical properties of metal-organic frameworks (MOFs), which is changeable via the variation of gas species and concentrations that can be utilized as gas detectors. Herein, for the first time, we used Lorentz-Lorentz, Maxwell-Ga, and Bruggeman effective medium approximation (EMA) equations to compute the percentage change in the index of refraction (Δn%) of ZIF-7, ZIF-8, ZIF-90, MIL-101(Cr) and HKUST-1 upon exposure to ethanol at various partial pressures. We also determined the enhancement factors of the mentioned MOFs to assess the storage capability of MOFs and the biosensors' selectivity through guest-host interactions, especially, at low guest concentrations.
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Affiliation(s)
- Nahideh Salehifar
- Department of Electrical and Computer Engineering, Missouri University of Science and Technology, 141 Emerson Electric Co. Hall, 301 W. 16th., Rolla, Missouri 65409, USA
| | - Peter Holtmann
- Department of Electrical and Computer Engineering, Missouri University of Science and Technology, 141 Emerson Electric Co. Hall, 301 W. 16th., Rolla, Missouri 65409, USA
| | - Abhishek Prakash Hungund
- Department of Electrical and Computer Engineering, Missouri University of Science and Technology, 141 Emerson Electric Co. Hall, 301 W. 16th., Rolla, Missouri 65409, USA
| | - Homayoon Soleimani Dinani
- Department of Electrical and Computer Engineering, Missouri University of Science and Technology, 141 Emerson Electric Co. Hall, 301 W. 16th., Rolla, Missouri 65409, USA
| | - Rex E. Gerald
- Department of Electrical and Computer Engineering, Missouri University of Science and Technology, 141 Emerson Electric Co. Hall, 301 W. 16th., Rolla, Missouri 65409, USA
| | - Jie Huang
- Department of Electrical and Computer Engineering, Missouri University of Science and Technology, 141 Emerson Electric Co. Hall, 301 W. 16th., Rolla, Missouri 65409, USA
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15
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Multia J, Kravchenko DE, Rubio-Giménez V, Philip A, Ameloot R, Karppinen M. Nanoporous Metal-Organic Framework Thin Films Prepared Directly from Gaseous Precursors by Atomic and Molecular Layer Deposition: Implications for Microelectronics. ACS APPLIED NANO MATERIALS 2023; 6:827-831. [PMID: 36743856 PMCID: PMC9887593 DOI: 10.1021/acsanm.2c04934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Accepted: 01/05/2023] [Indexed: 06/18/2023]
Abstract
Atomic/molecular layer deposition (ALD/MLD) allows for the direct gas-phase synthesis of crystalline metal-organic framework (MOF) thin films. Here, we show for the first time using krypton and methanol physisorption measurements that ALD/MLD-fabricated copper 1,4-benzenedicarboxylate (Cu-BDC) ultrathin films possess accessible porosity matching that of the corresponding bulk MOF.
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Affiliation(s)
- Jenna Multia
- Department
of Chemistry and Materials Science, Aalto
University, Aalto FI-00076, Finland
| | - Dmitry E. Kravchenko
- Centre
for Membrane Separations, Adsorption, Catalysis and Spectroscopy, Katholieke Universiteit Leuven, Leuven 3001, Belgium
| | - Víctor Rubio-Giménez
- Centre
for Membrane Separations, Adsorption, Catalysis and Spectroscopy, Katholieke Universiteit Leuven, Leuven 3001, Belgium
| | - Anish Philip
- Department
of Chemistry and Materials Science, Aalto
University, Aalto FI-00076, Finland
| | - Rob Ameloot
- Centre
for Membrane Separations, Adsorption, Catalysis and Spectroscopy, Katholieke Universiteit Leuven, Leuven 3001, Belgium
| | - Maarit Karppinen
- Department
of Chemistry and Materials Science, Aalto
University, Aalto FI-00076, Finland
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16
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Obst M, Tietze ML, Matavž A, Rodriguez-Hermida S, Marcoen K, Hauffman T, Ameloot R. Vapor-Phase Loading of an Ionic Liquid into a Zeolitic Imidazolate Framework. Inorg Chem 2022; 61:17137-17143. [PMID: 36260857 DOI: 10.1021/acs.inorgchem.2c02615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Composites formed by a metal-organic framework (MOF) and an ionic liquid (IL) are potentially interesting materials for applications ranging from gas separation to electrochemical devices. Consequently, there is a need for robust and low-cost preparation procedures that are compatible with the desired applications. We herein report a solvent-free, one-step, and vapor-based ship-in-bottle synthesis of the IL@MOF composite 1-butyl-3-methylimidazolium bromide@ZIF-8 in powder and thin film forms. In this approach, volatile IL precursors evaporate and subsequently adsorb and react within the MOF cages to form the IL.
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Affiliation(s)
- Martin Obst
- Center for Membrane Separations, Adsorption, Catalysis, and Spectroscopy (cMACS), KU Leuven, Celestijnenlaan 200F, 3001Leuven, Belgium
| | - Max L Tietze
- Center for Membrane Separations, Adsorption, Catalysis, and Spectroscopy (cMACS), KU Leuven, Celestijnenlaan 200F, 3001Leuven, Belgium
| | - Aleksander Matavž
- Center for Membrane Separations, Adsorption, Catalysis, and Spectroscopy (cMACS), KU Leuven, Celestijnenlaan 200F, 3001Leuven, Belgium
| | - Sabina Rodriguez-Hermida
- Center for Membrane Separations, Adsorption, Catalysis, and Spectroscopy (cMACS), KU Leuven, Celestijnenlaan 200F, 3001Leuven, Belgium
| | - Kristof Marcoen
- Research Group of Electrochemical and Surface Engineering (SURF), Vrije Universiteit Brussel, Pleinlaan 2, 1050Brussels, Belgium
| | - Tom Hauffman
- Research Group of Electrochemical and Surface Engineering (SURF), Vrije Universiteit Brussel, Pleinlaan 2, 1050Brussels, Belgium
| | - Rob Ameloot
- Center for Membrane Separations, Adsorption, Catalysis, and Spectroscopy (cMACS), KU Leuven, Celestijnenlaan 200F, 3001Leuven, Belgium
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17
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Bajpai A, Speed D, Szulczewski GJ. Vapor-Phase Adsorption of Xylene Isomers and Ethylbenzene in MOF-74 Thin Films. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:9518-9525. [PMID: 35895831 DOI: 10.1021/acs.langmuir.2c00816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Thin films of Co-MOF-74 and Ni-MOF-74 were synthesized on Au-coated quartz crystal microbalance substrates by a vapor-assisted conversion (VAC) method that precludes the need for activation via postsynthetic solvent exchange. All thin films were structurally characterized by powder X-ray diffraction, reflection-absorption infrared spectroscopy, and Raman spectroscopy. Scanning electron microscopy (SEM) images reveal that the Ni-MOF-74 films exists as a dense base layer with hemispherical protrusions on the surface. In contrast, the scanning electron microscopy images of the Co-MOF-74 thin films show a rough surface with spherical deposits. The thin film morphologies were different than the powders resulting from the bulk synthesis. Gravimetric vapor-phase adsorption measurements for xylene isomers and ethylbenzene within Co-MOF-74 and Ni-MOF-74 thin films were conducted, and the results were compared with those reported for the corresponding bulk powders. Despite different morphologies, the saturation capacities of Ni-MOF-74 and Co-MOF-74 thin films were found to be nearly equivalent to those reported for the bulk powders. The results demonstrate that the VAC method can produce MOF-74 thin films that retain the intrinsic properties that are observed in bulk powders.
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Affiliation(s)
- Alankriti Bajpai
- Department of Chemistry and Biochemistry The University of Alabama, Tuscaloosa, Alabama 35487, United States
| | - Daniel Speed
- Department of Chemistry and Biochemistry The University of Alabama, Tuscaloosa, Alabama 35487, United States
| | - Gregory J Szulczewski
- Department of Chemistry and Biochemistry The University of Alabama, Tuscaloosa, Alabama 35487, United States
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18
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Baumgartner B, Mashita R, Fukatsu A, Okada K, Takahashi M. Guest Alignment and Defect Formation during Pore Filling in Metal–Organic Framework Films. Angew Chem Int Ed Engl 2022; 61:e202201725. [DOI: 10.1002/anie.202201725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Indexed: 11/09/2022]
Affiliation(s)
- Bettina Baumgartner
- Department of Materials Science, Graduate School of Engineering Osaka Prefecture University* (* Present name: Osaka Metropolitan University) Sakai Osaka, 599-8531 Japan
| | - Risa Mashita
- Department of Materials Science, Graduate School of Engineering Osaka Prefecture University* (* Present name: Osaka Metropolitan University) Sakai Osaka, 599-8531 Japan
| | - Arisa Fukatsu
- Department of Materials Science, Graduate School of Engineering Osaka Prefecture University* (* Present name: Osaka Metropolitan University) Sakai Osaka, 599-8531 Japan
| | - Kenji Okada
- Department of Materials Science, Graduate School of Engineering Osaka Prefecture University* (* Present name: Osaka Metropolitan University) Sakai Osaka, 599-8531 Japan
- JST, PRESTO 4-1-8 Honcho Kawaguchi Saitama 332-0012 Japan
| | - Masahide Takahashi
- Department of Materials Science, Graduate School of Engineering Osaka Prefecture University* (* Present name: Osaka Metropolitan University) Sakai Osaka, 599-8531 Japan
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19
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Baumgartner B, Mashita R, Fukatsu A, Okada K, Takahashi M. Ausrichtung von Gastmolekülen und Defektbildung während der Porenfüllung in Metallorganischen Gerüstverbindungsdünnschichten. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202201725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Bettina Baumgartner
- Department of Materials Science Graduate School of Engineering Osaka Prefecture University* (* Aktueller Name: Osaka Metropolitan University) Sakai Osaka, 599-8531 Japan
| | - Risa Mashita
- Department of Materials Science Graduate School of Engineering Osaka Prefecture University* (* Aktueller Name: Osaka Metropolitan University) Sakai Osaka, 599-8531 Japan
| | - Arisa Fukatsu
- Department of Materials Science Graduate School of Engineering Osaka Prefecture University* (* Aktueller Name: Osaka Metropolitan University) Sakai Osaka, 599-8531 Japan
| | - Kenji Okada
- Department of Materials Science Graduate School of Engineering Osaka Prefecture University* (* Aktueller Name: Osaka Metropolitan University) Sakai Osaka, 599-8531 Japan
- JST, PRESTO 4-1-8 Honcho Kawaguchi Saitama 332-0012 Japan
| | - Masahide Takahashi
- Department of Materials Science Graduate School of Engineering Osaka Prefecture University* (* Aktueller Name: Osaka Metropolitan University) Sakai Osaka, 599-8531 Japan
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20
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Iacomi P, Gulcay-Ozcan E, Pires Conti P, Biswas S, Steunou N, Maurin G, Rioland G, Devautour-Vinot S. MIL-101(Cr) MOF as an Effective Siloxane Sensor. ACS APPLIED MATERIALS & INTERFACES 2022; 14:17531-17538. [PMID: 35380791 DOI: 10.1021/acsami.2c02607] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Volatile methylsiloxanes (VMSs) are common silicone degradation byproducts that cause serious concern for the contamination of sensitive electronics and optics, among others. With the goal of fast, online detection of VMS, we herein highlight the mesoporous MIL-101(Cr) MOF as a promising mass sensing layer for integration with a quartz crystal microbalance (QCM), using an in-house modified gravimetric adsorption system capable of achieving extremely low concentrations of siloxane D4 (down to 0.04 ppm), targeting applications for monitoring in indoor spaces and spacecraft. Our developed MIL-101(Cr)@QCM sensor achieves near-perfect reversibility with no hysteresis alongside excellent repeatability over cycling and fast response/recovery times under 1 min. We attribute this capability to optimum host/guest interactions as uncovered through molecular simulations.
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Affiliation(s)
- Paul Iacomi
- ICGM, Univ. Montpellier, CNRS, ENSCM, F-34095 Montpellier, France
| | | | | | - Subharanjan Biswas
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles St Quentin en Yvelines, Université Paris-Saclay, 78035 Versailles, France
| | - Nathalie Steunou
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles St Quentin en Yvelines, Université Paris-Saclay, 78035 Versailles, France
| | - Guillaume Maurin
- ICGM, Univ. Montpellier, CNRS, ENSCM, F-34095 Montpellier, France
| | - Guillaume Rioland
- Centre National d'Etudes Spatiales, DTN/QE/LE, 18 Avenue Edouard Belin, 31401 Toulouse, Cedex 09, France
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21
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Abstract
ConspectusPorous metal-organic frameworks (MOFs), formed from organic linkers and metal nodes, have attracted intense research attention. Because of their high specific surface areas, uniform and adjustable pore sizes, and versatile physicochemical properties, MOFs have shown disruptive potential in adsorption, catalysis, separation, etc. For many of these applications, MOFs are synthesized solvothermally as bulk powders and subsequently shaped as pellets or extrudates. Other applications, such as membrane separations and (opto)electronics, require the implementation of MOFs as (patterned) thin films. Most thin-film formation methods are adapted from liquid-phase synthesis protocols. Precursor transport and nucleation are difficult to control in these cases, often leading to particle formation in solution. Moreover, the use of solvents gives rise to environmental and safety challenges, incompatibility issues with some substrates, and corrosion issues in the case of dissolved metal salts. In contrast, vapor-phase processing methods have the merits of environmental friendliness, control over thickness and conformality, scalability in production, and high compatibility with other workflows.In this Account, we outline some of our efforts and related studies in the development and application of vapor-phase processing of crystalline MOF materials (MOF-VPP). We first highlight the advances and mechanisms in the vapor-phase deposition of MOFs (MOF-VPD), mainly focusing on the reactions between a linker vapor and a metal-containing precursor layer. The characteristics of the obtained MOFs (thickness, porosity, crystallographic phase, orientation, etc.) and the correlation of these properties with the deposition parameters (precursors, temperatures, humidity, post-treatments, etc.) are discussed. Some in situ characterization methods that contributed to a fundamental understanding of the involved mechanisms are included in the discussion. Second, four vapor-phase postsynthetic functionalization (PSF) methods are summarized: linker exchange, guest loading, linker grafting, and metalation. These approaches eliminate potential solubility issues and enable fast diffusion of reactants and guests as well as a high loading or degree of exchange. Vapor-phase PSF provides a platform to modify the MOF porosity or even introduce new functionalities (e.g., luminescence photoswitching and catalytic activity). Third, since vapor-phase processing methods enable the integration of MOF film deposition into a (micro)fabrication workflow, they facilitate a range of applications with improved performance (low-k dielectrics, sensors, membrane separations, etc.). Finally, we provide a discussion on the limitations, challenges, and further opportunities for MOF-VPP. Through the discussion and analysis of the vapor-phase processing strategies as well as the underlying mechanisms in this Account, we hope to contribute to the development of the controllable synthesis, functionalization, and application of MOFs and related materials.
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Affiliation(s)
- Pengcheng Su
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, China
| | - Min Tu
- 2020 X-Lab, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
| | - Rob Ameloot
- Centre for Membrane Separations, Adsorption, Catalysis, and Spectroscopy, KU Leuven - University of Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Wanbin Li
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, China
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22
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Iacomi P, Maurin G. ResponZIF Structures: Zeolitic Imidazolate Frameworks as Stimuli-Responsive Materials. ACS APPLIED MATERIALS & INTERFACES 2021; 13:50602-50642. [PMID: 34669387 DOI: 10.1021/acsami.1c12403] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Zeolitic imidazolate frameworks (ZIFs) have long been recognized as a prominent subset of the metal-organic framework (MOF) family, in part because of their ease of synthesis and good thermal and chemical stability, alongside attractive properties for diverse potential applications. Prototypical ZIFs like ZIF-8 have become embodiments of the significant promise held by porous coordination polymers as next-generation designer materials. At the same time, their intriguing property of experiencing significant structural changes upon the application of external stimuli such as temperature, mechanical pressure, guest adsorption, or electromagnetic fields, among others, has placed this family of MOFs squarely under the umbrella of stimuli-responsive materials. In this review, we provide an overview of the current understanding of the triggered structural and electronic responses observed in ZIFs (linker and bond dynamics, crystalline and amorphous phase changes, luminescence, etc.). We then describe the state-of-the-art experimental and computational methodology capable of shedding light on these complex phenomena, followed by a comprehensive summary of the stimuli-responsive nature of four prototypical ZIFs: ZIF-8, ZIF-7, ZIF-4, and ZIF-zni. We further expose the relevant challenges for the characterization and fundamental understanding of responsive ZIFs, including how to take advantage of their flexible properties for new application avenues.
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Affiliation(s)
- Paul Iacomi
- UMR 5253, CNRS, ENSCM, Institut Charles Gerhardt Montpellier, University of Montpellier, Montpellier 34293, France
| | - Guillaume Maurin
- UMR 5253, CNRS, ENSCM, Institut Charles Gerhardt Montpellier, University of Montpellier, Montpellier 34293, France
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23
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Cruz AJ, Arnauts G, Obst M, Kravchenko DE, Vereecken PM, De Feyter S, Stassen I, Hauffman T, Ameloot R. Effect of different oxide and hybrid precursors on MOF-CVD of ZIF-8 films. Dalton Trans 2021; 50:6784-6788. [PMID: 33969844 DOI: 10.1039/d1dt00927c] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Chemical vapor deposition of metal-organic frameworks (MOF-CVD) will facilitate the integration of porous and crystalline coatings in electronic devices. In the two-step MOF-CVD process, a precursor layer is first deposited and subsequently converted to a MOF through exposure to linker vapor. We herein report the impact of different metal oxide and metalcone layers as precursors for zeolitic imidazolate framework ZIF-8 films.
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Affiliation(s)
- Alexander John Cruz
- Centre for Membrane Separations, Adsorption, Catalysis, and Spectroscopy for Sustainable Solutions (cMACS), Department of Microbial and Molecular Systems, KU Leuven - University of Leuven, Celestijnenlaan 200F, Leuven, 3001, Belgium. and Research Group of Electrochemical and Surface Engineering (SURF), Department of Materials and Chemistry (MACH), Vrije Universiteit Brussel, Pleinlaan 2, Brussels, 1050, Belgium and imec, Kapeldreef 75, Leuven, 3001, Belgium
| | - Giel Arnauts
- Centre for Membrane Separations, Adsorption, Catalysis, and Spectroscopy for Sustainable Solutions (cMACS), Department of Microbial and Molecular Systems, KU Leuven - University of Leuven, Celestijnenlaan 200F, Leuven, 3001, Belgium.
| | - Martin Obst
- Centre for Membrane Separations, Adsorption, Catalysis, and Spectroscopy for Sustainable Solutions (cMACS), Department of Microbial and Molecular Systems, KU Leuven - University of Leuven, Celestijnenlaan 200F, Leuven, 3001, Belgium.
| | - Dmitry E Kravchenko
- Centre for Membrane Separations, Adsorption, Catalysis, and Spectroscopy for Sustainable Solutions (cMACS), Department of Microbial and Molecular Systems, KU Leuven - University of Leuven, Celestijnenlaan 200F, Leuven, 3001, Belgium.
| | - Philippe M Vereecken
- Centre for Membrane Separations, Adsorption, Catalysis, and Spectroscopy for Sustainable Solutions (cMACS), Department of Microbial and Molecular Systems, KU Leuven - University of Leuven, Celestijnenlaan 200F, Leuven, 3001, Belgium. and imec, Kapeldreef 75, Leuven, 3001, Belgium
| | - Steven De Feyter
- Division of Molecular Imaging and Photonics, Department of Chemistry, KU Leuven - University of Leuven, Celestijnenlaan 200F, Leuven, 3001, Belgium
| | - Ivo Stassen
- Centre for Membrane Separations, Adsorption, Catalysis, and Spectroscopy for Sustainable Solutions (cMACS), Department of Microbial and Molecular Systems, KU Leuven - University of Leuven, Celestijnenlaan 200F, Leuven, 3001, Belgium.
| | - Tom Hauffman
- Research Group of Electrochemical and Surface Engineering (SURF), Department of Materials and Chemistry (MACH), Vrije Universiteit Brussel, Pleinlaan 2, Brussels, 1050, Belgium
| | - Rob Ameloot
- Centre for Membrane Separations, Adsorption, Catalysis, and Spectroscopy for Sustainable Solutions (cMACS), Department of Microbial and Molecular Systems, KU Leuven - University of Leuven, Celestijnenlaan 200F, Leuven, 3001, Belgium.
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