{"id":{"repo_id":"buffalo","oai_identifier":"oai:ubir.buffalo.edu:10477/84010"},"canonical_url":"https://search.dev.ndltd.org/etd/buffalo/oai:ubir.buffalo.edu:10477/84010","repository":{"repo_id":"buffalo","name":"Buffalo","base_url":"https://ubir.buffalo.edu/oai/request"},"display":{"title":"Exploiting the Host-Guest Properties of Self-Assembled Metal-Organic Materials for Gas Separation and Water Purification","abstract":"Ph.D.","abstract_html":"Ph.D.","abstract_has_math":false,"creators":["Fulong, Cressa Ria; 0000-0002-5574-7609"],"institution":"State University of New York at Buffalo","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":["Cook, Timothy","Chemistry"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2022,"date_issued":"2022-06-21T15:47:00Z","date_published":"2022-06-21T15:47:00Z","updated_at":"2026-07-27T19:05:28Z","subjects":["chemistry","inorganic chemistry","analytical chemistry"],"languages":["eng"],"rights":["Users of works found in University at Buffalo Institutional Repository (UBIR) are responsible for identifying and contacting the copyright owner for permission to reuse. University at Buffalo Libraries do not manage rights for copyright-protected works and cannot assist with permissions.","Copyright retained by author."],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/10477/84010","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Cook, Timothy","Chemistry"]},{"key":"dc:creator","label":"Author","values":["Fulong, Cressa Ria; 0000-0002-5574-7609"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2022-06-21T15:47:00Z","2020"]},{"key":"dc:publisher","label":"Institution","values":["State University of New York at Buffalo"]},{"key":"dc:type","label":"Dc Type","values":["Text","Dissertation"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["chemistry","inorganic chemistry","analytical chemistry"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Users of works found in University at Buffalo Institutional Repository (UBIR) are responsible for identifying and contacting the copyright owner for permission to reuse. University at Buffalo Libraries do not manage rights for copyright-protected works and cannot assist with permissions.","Copyright retained by author."]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/10477/84010"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Ph.D.","This project is broadly centered in understanding the host-guest properties of coordination-driven self-assembled metal-organic materials (MOMs) such as discrete molecular metal-organic polyhedra (MOP) and polymeric metal-organic framework (MOF). The self-assembly of these materials has been widely studied due to their interesting properties including well-defined internal cavities, rigid structures, and modular syntheses. These properties enable their use in a variety of applications including light-harvesting, energy storage, catalysis, molecule sequestration, and gas storage. This work is specifically focused on (1) evaluating the capacity of metal-organic materials for pollution management, i.e. water purification, as well as gas storage and (2) designing composite materials wherein an organic polymer is embedded with these self-assembled MOMs. A suite of analytical techniques including spectroscopy, microscopy, diffractometry, calorimetry, and gravimetry are used in order to fully characterize our MOMs and composite materials. Initial work demonstrated the host-guest chemistry of a Cobalt(II) MOF known as a “crystalline sponge” for its ability to encapsulate organic dyes in water. The insolubility and water-instability of most MOFs limit their application in water treatment technologies unlike MOPs which are stable and soluble in a range of solvents making them more processable as additives to mixed-matrix materials (MMMs). We then studied a group of MOPs as fillers for MMMs with a polyvinylidine fluoride (PVDF) polymer phase and contrasted them against MMM containing MOF-5. We demonstrated the formation of thin, flexible, and homogeneous MMMs when a given MOP was soluble in the precursor solutions. With our ability to incorporate MOPs into polymer to make membranes, we started to investigate the self-assembly of group 11 metallacycles for olefin/paraffin separation due to a precedent that silver metal ions can interact with ethylene and light olefins over related paraffins. We observed that the precipitation of Ag(I) and Au(I) hexagonal metallacycles upon assembly in chloroform/methanol mixtures resulted in high solid-state photo-stability. Finally, the anionic molecular cage, FeMOP, was demonstrated to encapsulate per- and polyfluoroalkyl substances (PFAS) in water. The key findings from these host-guest studies can be applied to future metal-organic materials design and modification for improved cage incorporation in mixed-matrix materials with optimized performance in gas separation and water purification.","**To request an accessible version of the file(s) associated with this item, contact library@buffalo.edu. Please include the item's persistent URL [http://hdl.handle.net/. . .] in your request.**"]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Exploiting the Host-Guest Properties of Self-Assembled Metal-Organic Materials for Gas Separation and Water Purification"]}]}],"canonical_facts":{"dc:contributor":["Cook, Timothy","Chemistry"],"dc:creator":["Fulong, Cressa Ria; 0000-0002-5574-7609"],"dc:date":["2022-06-21T15:47:00Z","2020"],"dc:description":["Ph.D.","This project is broadly centered in understanding the host-guest properties of coordination-driven self-assembled metal-organic materials (MOMs) such as discrete molecular metal-organic polyhedra (MOP) and polymeric metal-organic framework (MOF). The self-assembly of these materials has been widely studied due to their interesting properties including well-defined internal cavities, rigid structures, and modular syntheses. These properties enable their use in a variety of applications including light-harvesting, energy storage, catalysis, molecule sequestration, and gas storage. This work is specifically focused on (1) evaluating the capacity of metal-organic materials for pollution management, i.e. water purification, as well as gas storage and (2) designing composite materials wherein an organic polymer is embedded with these self-assembled MOMs. A suite of analytical techniques including spectroscopy, microscopy, diffractometry, calorimetry, and gravimetry are used in order to fully characterize our MOMs and composite materials. Initial work demonstrated the host-guest chemistry of a Cobalt(II) MOF known as a “crystalline sponge” for its ability to encapsulate organic dyes in water. The insolubility and water-instability of most MOFs limit their application in water treatment technologies unlike MOPs which are stable and soluble in a range of solvents making them more processable as additives to mixed-matrix materials (MMMs). We then studied a group of MOPs as fillers for MMMs with a polyvinylidine fluoride (PVDF) polymer phase and contrasted them against MMM containing MOF-5. We demonstrated the formation of thin, flexible, and homogeneous MMMs when a given MOP was soluble in the precursor solutions. With our ability to incorporate MOPs into polymer to make membranes, we started to investigate the self-assembly of group 11 metallacycles for olefin/paraffin separation due to a precedent that silver metal ions can interact with ethylene and light olefins over related paraffins. We observed that the precipitation of Ag(I) and Au(I) hexagonal metallacycles upon assembly in chloroform/methanol mixtures resulted in high solid-state photo-stability. Finally, the anionic molecular cage, FeMOP, was demonstrated to encapsulate per- and polyfluoroalkyl substances (PFAS) in water. The key findings from these host-guest studies can be applied to future metal-organic materials design and modification for improved cage incorporation in mixed-matrix materials with optimized performance in gas separation and water purification.","**To request an accessible version of the file(s) associated with this item, contact library@buffalo.edu. Please include the item's persistent URL [http://hdl.handle.net/. . .] in your request.**"],"dc:format":["application/pdf"],"dc:identifier":["http://hdl.handle.net/10477/84010"],"dc:language":["eng"],"dc:publisher":["State University of New York at Buffalo"],"dc:rights":["Users of works found in University at Buffalo Institutional Repository (UBIR) are responsible for identifying and contacting the copyright owner for permission to reuse. University at Buffalo Libraries do not manage rights for copyright-protected works and cannot assist with permissions.","Copyright retained by author."],"dc:subject":["chemistry","inorganic chemistry","analytical chemistry"],"dc:title":["Exploiting the Host-Guest Properties of Self-Assembled Metal-Organic Materials for Gas Separation and Water Purification"],"dc:type":["Text","Dissertation"]},"updated_at":"2026-07-27T19:05:28Z"}