Metal-Organic Framework Polymer Hybrid Materials for Chemical Warfare Agent Degradation

Metal-Organic Framework Polymer Hybrid Materials for Chemical Warfare Agent Degradation
Author: Mark Kalaj
Publisher:
Total Pages: 275
Release: 2021
Genre:
ISBN:

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Since first discovered some two decades ago, metal-organic frameworks (MOFs) have shown interesting properties with regard to storage, separation, and catalysis applications. While MOFs have shown promise in these arenas over the years, a major shortcoming of these materials is their inherently crystalline form factor which hinders their applicational. To circumvent this issue, we have turned to the hybridization of MOFs with polymers in an effort to form a material that has the desired properties of the MOF and the flexibility of the polymer. In particular, we seek to develop novel textile based (nylon based or spray coated) MOF-polymer hybrid materials that are catalytically active against harmful organophosphorus chemical warfare agents (CWAs). Chapter 2 describes the synthesis of a MOF-nylon hybrid material through and interfacial postsynthetic polymerization (PSP) method. The hybrid material contains 29 weight percent MOF and shows catalytic activity against a CWA simulant. Importantly, the covalent MOF-nylon material displays about a seven-fold increase in activity compared to physically mixed controls. In Chapter 3, we screened a wide range of MOFs with varying organic functional groups to establish structure activity relationships (SAR) between MOF functional groups and CWA simulant degradation. The Zr-based MOF UiO-66 (UiO = University of Oslo) was synthesized with either mixed ligand functional groups or halogenated functional groups. We determined that the mixed ligand approach improves CWA activity by three-fold whereas the UiO-66-Iodine MOF displays a fourfold increase in activity. Through theoretical calculations, the increased activity in UiO-66-I was determined to be an artifact of halogen bonding with the CWA simulant. In Chapter 4, we combined the approaches from Chapter 2 and 3, by using the commonly known pseudohalogen isothiocyanate (NCS) functional group in UiO-66 to improve the catalytic activity against CWAs and covalent PSP sites. The UiO-66-NCS MOF was synthesized via postsynthetic modification (PSM) and displayed a ~20 fold increase in activity compared to the presynthetic MOF. More importantly, using amine terminated polypropylene oxides, MOF-polymer material was formed, and spray coated onto textile fibers. This material showed great durability and catalytic activity compared to physically mixed controls. Chapter 5 describes the room temperature synthesis of the commonly used UiO-66 MOF as well as a few functional groups derivatives. Starting from a UiO-66-F4 MOF with relatively labile ligands, postsynthetic exchange (PSE) with four different MOF ligands at room temperature in aqueous conditions was performed with almost complete ligand exchange. These MOFs were thoroughly characterized after PSE and maintained desired properties such as crystallinity and particle size or shape.

Hybrid Metal-Organic Framework and Covalent Organic Framework Polymers

Hybrid Metal-Organic Framework and Covalent Organic Framework Polymers
Author: Bo Wang
Publisher: Royal Society of Chemistry
Total Pages: 407
Release: 2021-11-26
Genre: Science
ISBN: 1839161531

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This book documents the latest research progress in MOF/COF-polymer hybrid materials and reviews and summarises hybridization strategies to achieve MOF/COF polymeric composites.

Nanozymes: Next Wave of Artificial Enzymes

Nanozymes: Next Wave of Artificial Enzymes
Author: Xiaoyu Wang
Publisher: Springer
Total Pages: 134
Release: 2016-07-27
Genre: Technology & Engineering
ISBN: 3662530686

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This book describes the fundamental concepts, the latest developments and the outlook of the field of nanozymes (i.e., the catalytic nanomaterials with enzymatic characteristics). As one of today’s most exciting fields, nanozyme research lies at the interface of chemistry, biology, materials science and nanotechnology. Each of the book’s six chapters explores advances in nanozymes. Following an introduction to the rise of nanozymes research in the course of research on natural enzymes and artificial enzymes in Chapter 1, Chapters 2 through 5 discuss different nanomaterials used to mimic various natural enzymes, from carbon-based and metal-based nanomaterials to metal oxide-based nanomaterials and other nanomaterials. In each of these chapters, the nanomaterials’ enzyme mimetic activities, catalytic mechanisms and key applications are covered. In closing, Chapter 6 addresses the current challenges and outlines further directions for nanozymes. Presenting extensive information on nanozymes and supplemented with a wealth of color illustrations and tables, the book offers an ideal guide for readers from disparate areas, including analytical chemistry, materials science, nanoscience and nanotechnology, biomedical and clinical engineering, environmental science and engineering, green chemistry, and novel catalysis.

Metal-Organic Frameworks-Based Hybrid Materials for Environmental Sensing and Monitoring

Metal-Organic Frameworks-Based Hybrid Materials for Environmental Sensing and Monitoring
Author: Ram K. Gupta
Publisher: CRC Press
Total Pages: 349
Release: 2022-06-22
Genre: Technology & Engineering
ISBN: 1000569128

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With an unprecedented population boom and rapid industrial development, environmental pollution has become a severe problem for the ecosystem and public health. Classical techniques for sensing and determining environmental contaminants often require complex pretreatments, expensive equipment, and longer testing times. Therefore, new, and state-of-the-art sensing technologies possessing the advantages of excellent sensitivity, rapid detection, ease of use, and suitability for in situ, real-time, and continuous monitoring of environmental pollutants, are highly desirable. Metal-Organic Frameworks-based Hybrid Materials for Environmental Sensing and Monitoring covers the current-state-of-the-art hybrid nanomaterials based on metal-organic frameworks for electrochemical monitoring purposes. Accomplished authors cover various synthetic routes, methods, and theories behind enhancing the electrochemical properties and applications of metal-organic frameworks-based hybrid nanomaterials for electrochemical sensing of environmental pollutants under one roof. This book is essential reading for all academic and industrial researchers working in the fields of materials science and nanotechnology.

High-Throughput Screening of Metal-Organic Framework and Polymer Composites for Degradation of Nerve Agent Simulants

High-Throughput Screening of Metal-Organic Framework and Polymer Composites for Degradation of Nerve Agent Simulants
Author: Joseph Michael Palomba
Publisher:
Total Pages: 293
Release: 2021
Genre:
ISBN:

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Metal-organic frameworks (MOFs) are crystalline porous materials with excellent gas storage capacities and unique chemical tunability. Their application as new materials to uptake and degrade chemical warfare agents has been the topic of intense study over the last half-decade. Work by others proved that Zr-MOFs and polymer composites made from them are contenders for the next generation of personal protective equipment (PPE) for combatting nerve agents. In an attempt to speed up discovery and understanding of MOF catalysts for nerve agent degradation, a high-throughput screening (HTS) assay was developed for a common nerve agent simulant. Chapter 2 outlines the development of this assay as well as the curation and screening results from the library of 93 MOFs and related materials. Successful development and validation of the HTS assay led to targeted attempts to apply this method for both a wider array of MOFs as well as MOF-polymer composites. Chapter 3 uses the speed of HTS to investigate two groups of closely related MOFs that result in a wide range of catalytic activities. This chapter also adapts the HTS assay to analyze composites and again finds that small differences in materials changes the outcome of catalyst performance. Chapter 4 describes the development of a new HTS assay with another nerve agent simulant that can be directly compared to results of the assay developed in Chapter 2. This new assay expands understanding of the degradation attempts by MOF catalysts to date. In addition, this new HTS method was compared to a medium-throughput method for monitoring breakdown of nerve agent VX and was confirmed by literature assay using 31P NMR. MOF catalysts design was paired with MOF-polymer composite design, when a new strong, ductile hybrid was developed in Chapter 5. Catalytically active MOFs were combined with a spandex polymer to target composites for durable PPE. The HTS assay was used to show catalytic ability of these composites and three processing methods demonstrated the versatility of these MOF-polymer composites.

Detoxification of Chemical Warfare Agents

Detoxification of Chemical Warfare Agents
Author: Dimitrios A. Giannakoudakis
Publisher: Springer
Total Pages: 150
Release: 2017-12-28
Genre: Technology & Engineering
ISBN: 3319707604

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This book presents a detailed history of chemical warfare development during the First World War and discusses design approaches to gas masks and the performance of new filter materials that decontaminate chemical warfare agents (CWA) when applied in the vapor phase. It describes multifunctional nanocomposites containing zinc and zirconium (hydr)oxides, graphite oxide and silver or gold nanoparticles as reactive adsorbents for the degradation of the CWAs vapors. In addition it examines in detail the surface properties that are most important in the mineralization performance.

Metal-Organic Frameworks (MOFs) for Environmental Applications

Metal-Organic Frameworks (MOFs) for Environmental Applications
Author: Sujit K. Ghosh
Publisher: Elsevier
Total Pages: 464
Release: 2019-06-07
Genre: Science
ISBN: 0128146346

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Metal-Organic Frameworks for Environmental Applications examines this important topic, looking at potential materials and methods for the remediation of pressing pollution issues, such as heavy-metal contaminants in water streams, radioactive waste disposal, marine oil-spillage, the treatment of textile and dye industry effluents, the clean-up of trace amounts of explosives in land and water, and many other topics. This survey of the cutting-edge research and technology of MOFs is an invaluable resource for researchers working in inorganic chemistry and materials science, but it is also ideal for graduate students studying MOFs and their applications. Examines the applications of metal-organic frameworks for the remediation of environmental pollutants Features leading experts who research the applications of MOFs from around the world, including contributions from the United States, India and China Explores possible solutions to some of today’s most pressing environmental challenges, such as heavy-metal contamination in bodies of water, oil spills and clean-up of explosives hidden in land and water Provides an excellent reference for researchers and graduate students studying in the areas of inorganic chemistry, materials chemistry and environmental science

Hybrid Metal-Organic Framework and Covalent Organic Framework Polymers

Hybrid Metal-Organic Framework and Covalent Organic Framework Polymers
Author: Bo Wang
Publisher: Royal Society of Chemistry
Total Pages: 313
Release: 2021-11-12
Genre: Technology & Engineering
ISBN: 1839163461

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Metal–organic frameworks (MOFs) are crystalline porous materials constructed from metal ions/clusters and organic linkers, combining the merits of both organic and inorganic components. Due to high porosity, rich functionalities, well-defined open channels and diverse structures, MOFs show great potentials in field such as gas storage and separation, catalysis, and sensing. Combining them with polymers tunes their chemical, mechanical, electrical and optical properties, and endows MOFs with processability. Covalent organic frameworks (COFs) are crystalline porous materials built from organic molecular units with diverse structures and applications. Hybrid materials with intriguing properties can be achieved by appropriate preparation methods and careful selection of MOFs/COFs and polymers, broadening their potential applications. This book documents the latest research progress in MOF/COF-polymer hybrid materials and reviews and summarises hybridization strategies to achieve MOF/COF polymeric composites. It also introduces various applications and potential applicable scenarios of hybrid MOF/COF polymers. Hybrid Metal–Organic Framework and Covalent Organic Framework Polymers offers an overview to readers who are new to this field, and will appeal to graduate students and researchers working on porous materials, polymers, hybrid materials, and supramolecular chemistry.

Lanthanide Metal-Organic Frameworks

Lanthanide Metal-Organic Frameworks
Author: Peng Cheng
Publisher: Springer
Total Pages: 0
Release: 2015-01-19
Genre: Science
ISBN: 9783662457726

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The series Structure and Bonding publishes critical reviews on topics of research concerned with chemical structure and bonding. The scope of the series spans the entire Periodic Table and addresses structure and bonding issues associated with all of the elements. It also focuses attention on new and developing areas of modern structural and theoretical chemistry such as nanostructures, molecular electronics, designed molecular solids, surfaces, metal clusters and supramolecular structures. Physical and spectroscopic techniques used to determine, examine and model structures fall within the purview of Structure and Bonding to the extent that the focus is on the scientific results obtained and not on specialist information concerning the techniques themselves. Issues associated with the development of bonding models and generalizations that illuminate the reactivity pathways and rates of chemical processes are also relevant. The individual volumes in the series are thematic. The goal of each volume is to give the reader, whether at a university or in industry, a comprehensive overview of an area where new insights are emerging that are of interest to a larger scientific audience. Thus each review within the volume critically surveys one aspect of that topic and places it within the context of the volume as a whole. The most significant developments of the last 5 to 10 years should be presented using selected examples to illustrate the principles discussed. A description of the physical basis of the experimental techniques that have been used to provide the primary data may also be appropriate, if it has not been covered in detail elsewhere. The coverage need not be exhaustive in data, but should rather be conceptual, concentrating on the new principles being developed that will allow the reader, who is not a specialist in the area covered, to understand the data presented. Discussion of possible future research directions in the area is welcomed. Review articles for the individual volumes are invited by the volume editors. Readership: research scientists at universities or in industry, graduate students.

Metal-Organic Framework Materials

Metal-Organic Framework Materials
Author: Leonard R. MacGillivray
Publisher: John Wiley & Sons
Total Pages: 1210
Release: 2014-09-19
Genre: Science
ISBN: 1118931580

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Metal-Organic Frameworks (MOFs) are crystalline compounds consisting of rigid organic molecules held together and organized by metal ions or clusters. Special interests in these materials arise from the fact that many are highly porous and can be used for storage of small molecules, for example H2 or CO2. Consequently, the materials are ideal candidates for a wide range of applications including gas storage, separation technologies and catalysis. Potential applications include the storage of hydrogen for fuel-cell cars, and the removal and storage of carbon dioxide in sustainable technical processes. MOFs offer the inorganic chemist and materials scientist a wide range of new synthetic possibilities and open the doors to new and exciting basic research. Metal-Organic Frameworks Materials provides a solid basis for the understanding of MOFs and insights into new inorganic materials structures and properties. The volume also reflects progress that has been made in recent years, presenting a wide range of new applications including state-of-the art developments in the promising technology for alternative fuels. The comprehensive volume investigates structures, symmetry, supramolecular chemistry, surface engineering, recognition, properties, and reactions. The content from this book will be added online to the Encyclopedia of Inorganic and Bioinorganic Chemistry: http://www.wileyonlinelibrary.com/ref/eibc