Disclosed are embodiments of a filter unit containing a water adsorbent material in the form of water adsorbent particles in a packed bed and a gas adsorbent material in the form of gas adsorbent particles in a packed bed. In embodiments, the gas adsorbent material is downstream from the water adsorbent material in a direction of operation. Further disclosed are methods of preparing and using the filter units.

Disclosed are embodiments of a filter unit containing a water adsorbent material in the form of water adsorbent particles in a packed bed and a gas adsorbent material in the form of gas adsorbent particles in a packed bed. In embodiments, the gas adsorbent material is downstream from the water adsorbent material in a direction of operation. Further disclosed are methods of preparing and using the filter units.

Materials for binding per- and polyfluoroalkyl substances (PFAS) are disclosed. A fluidic device comprising the materials for detection and quantification of PFAS in a sample is disclosed. The fluidic device may be configured for multiplexed analyses. Also disclosed are methods for sorbing and remediating PFAS in a sample. The sample may be groundwater containing, or suspected of containing, one or more PFAS.

An object of the present invention is to provide a metal-organic framework manufacturing method of manufacturing a metal-organic framework having excellent gas adsorbability and durability. A metal-organic framework manufacturing method according to an embodiment of the present invention includes: a step of mixing a metal salt containing a metal atom and a polydentate ligand in the presence of a solvent to manufacture a metal-organic framework, the polydentate ligand contains a compound represented by Formula (1), a content of the compound represented by Formula (1) in the polydentate ligand is 50 mol % or greater with respect to a total molar amount of the polydentate ligand, the solvent contains an organic solvent having a boiling point of 100° C. or higher, and a water content in the solvent is 0 to 90 mass % with respect to a total mass of the solvent. ##STR00001##

An object of the present invention is to provide a metal-organic framework manufacturing method of manufacturing a metal-organic framework having excellent gas adsorbability and durability. A metal-organic framework manufacturing method according to an embodiment of the present invention includes: a step of mixing a metal salt containing a metal atom and a polydentate ligand in the presence of a solvent to manufacture a metal-organic framework, the polydentate ligand contains a compound represented by Formula (1), a content of the compound represented by Formula (1) in the polydentate ligand is 50 mol % or greater with respect to a total molar amount of the polydentate ligand, the solvent contains an organic solvent having a boiling point of 100° C. or higher, and a water content in the solvent is 0 to 90 mass % with respect to a total mass of the solvent. ##STR00001##

Disclosed are MOFs containing nucleophilic transition metal hydroxide (M-OH) groups. In certain embodiments, these MOFs can include a plurality of metal ions, each coordinated with one or more hydroxide ligands and one or more backbone ligands. In certain embodiments, the MOFs can comprise Kuratowski cluster-based secondary building units (SBUs). These MOFs can exhibit excellent performance for low pressure CO.sub.2 capture via a CO.sub.2/HCO.sub.3.sup.− fixation mechanism in which cooperative inter-cluster hydrogen bonding interactions enhance CO.sub.2 capture performance. Also provided are methods of making MOFs including one or more metal hydroxide moieties, as well as methods of using these MOFs to capture an acidic gas (e.g., CO.sub.2, SO.sub.2, NO.sub.2, or acetylene).

A humidity control system includes a two-way humidity control material, a plant extract, and a package housing the two-way humidity control material and the plant extract. A method of flavoring a product and controlling the humidity of an environment in a container includes inserting a humidity control system in the container and enclosing the product in the container. The humidity control system includes a two-way humidity control material, a plant extract, and a package housing the two-way humidity control material and the plant extract.

Adsorbent materials adsorb large quantities of inert permanent gases and maintain the initial pressure inside aerosol packages throughout the useful life of the packages, thus acting as propellants.

Sorbents, devices, kits and methods useful for sample treatment are disclosed herein. In particular embodiments, described are inorganic/organic hybrid sorbent particles comprising (a) a core region that comprises a silica component and (b) a surface region that comprises an organic copolymer comprising at least one hydrophobic organic monomer and at least one hydrophilic organic monomer.

The present invention provides a metal-organic framework which can both adsorb water vapor in low relative humidity and reduce the magnitude of the humidity difference between the adsorption humidity and the desorption humidity. A metal organic framework wherein the metal ion is an aluminum ion, a first ligand is an organic compound ion consisting of a first heterocycle having two carboxyl groups, and a heteroatom composing the first heterocycle is present on the minor angle side of the angle created by the two carboxyl groups, a second ligand is different than the first ligand, is an organic compound ion consisting of a second heterocycle having two carboxyl groups, and a heteroatom composing the second heterocycle is present on the major angle side of the angle create by the two carboxyl groups, and a third ligand is different than the first ligand and the second ligand, is an organic compound ion having two carboxyl groups, and the first ligand, second ligand, and third ligand are present in a specific ratio.