The present invention relates to metal-organic framework characterized in that it comprises a polymer coating; further the invention relates to a process for the preparation of said polymer-coated metal-organic framework and a process for recycling after degradation. The polymer coated MOFs of this invention find application in a broad range of technologies and therapeutic areas.

The invention relates to strong hydrogen-bond acidic sorbents. The sorbents may be provided in a form that limits or eliminates intramolecular bonding of the hydrogen-bond acidic site between neighboring sorbent molecules, for example, by providing steric groups adjacent to the hydrogen-bond acidic site. The hydrogen bond site may be a phenolic structure based on a bisphenol architecture. The sorbents of the invention may be used in methods for trapping or detecting hazardous chemicals or explosives.

The present invention is based on the use of surface adsorption to capture CO.sub.2 molecules from air, without requiring the need for bulk absorption within the bulk of the sorbent. Since surface adsorption is a much faster process than bulk absorption, the present invention offers a greatly increased CO.sub.2 capture rate, as well as a greatly improved energy efficiency, over conventional systems. The invention involves the use of a molecular monolayer of CO.sub.2 sorbent, a process and a system for capturing CO.sub.2 from air employing such a molecular monolayer of CO.sub.2 sorbent.

A composite for adsorption of metal ions including silica microparticles, graphene oxide sheets, and polyaniline is provided. The graphene oxide sheets and polyaniline are distributed on a surface of the silica microparticles. Methods for removing cationic and anionic metal ions from a solution such as wastewater are also provided.

A compound represented by Formula (1): each of L.sup.1 and L.sup.2 independently represents an alkyl group having from 1 to 20 carbon atoms, an alkoxy group having from 1 to 20 carbon atoms, NH.sub.2, NHR.sup.3, NR.sup.3R.sup.4, an ester group, a carboxy group, an amide group, a cyano group, a nitro group, a halogen atom, an acyl group, CF.sub.3, O(CH.sub.2).sub.1OCH.sub.3, a carbamate group, or an aryl group. 1 represents 1 or 2. Each of R.sup.1 and R.sup.2 independently represents a divalent hydrocarbon group having from 1 to 10 carbon atoms, at least one hydrogen atom of the divalent hydrocarbon group is optionally substituted with an alkyl group, an aryl group, an ester group, a carboxy group, an amide group, a cyano group, a nitro group, a halogen atom, an acyl group, CF.sub.3, O(CH.sub.2).sub.1OCH.sub.3, a carbamate group, or an alkoxy group, each of R.sup.3 and R.sup.4 independently represents an alkyl group, an aryl group, an acyl group, an ester group, an alkylsulfonyl group, or an arylsulfonyl group, each of R.sup.5 and R.sup.6 independently represents a hydrogen atom, an alkyl group having from 1 to 20 carbon atoms, or an aryl group, and n+m≥1.

A particulate material for removing an acid gas and/or mercury contaminant from a hydrocarbon gas is disclosed. The particulate material comprises a superabsorbent hydrogel comprising a cross-linked hydrophilic polymer network having from 0.1 mol % to 50 mol % cross-linking agent. The superabsorbent hydrogel has one or more compounds capable of binding the acid gas and/or mercury contaminant incorporated into the hydrophilic polymer network by absorbing said one or more compounds as a liquid phase or an aqueous solution. Methods for preparing the particulate material and using the particulate material to remove one or more acid gas and/or mercury contaminants from a hydrocarbon gas, dehydrating the hydrocarbon gas, and mitigating corrosion in gas flowlines are also disclosed.

The invention relates to strong hydrogen-bond acidic sorbents. The sorbents may be provided in a form that limits or eliminates intramolecular bonding of the hydrogen-bond acidic site between neighboring sorbent molecules, for example, by providing steric groups adjacent to the hydrogen-bond acidic site. The hydrogen bond site may be a phenolic structure based on a bisphenol architecture. The sorbents of the invention may be used in methods for trapping or detecting hazardous chemicals or explosives.

An air conditioning system and method of air conditioning is provided. The air conditioning system includes an intake mechanism configured to draw into the air conditioner a first amount of air and an amount of moisture from an exterior of the air conditioner. The system further includes metal organic frameworks in fluid communication with the intake mechanism, the metal organic frameworks configured to adsorb the amount of moisture from the first amount of air. The system further includes an indirect evaporative cooler configured to cool the first amount of air. The system further includes a solar heater configured to heat a second amount of air. The system further includes a heat exchanger configured to contact the second amount of air with the metal organic frameworks to regenerate the metal organic frameworks.

A device for collecting contaminants from water samples is provided. The device includes a solid sorbent that collects and stores the contaminants from water samples. The solid sorbent is configured to allow for the preservation of the stored contaminants. The concentrations of the contaminants in the water samples are determined via analysis of the solid sorbent or via elution of the stored contaminants from the sorbent and analysis of the eluate solution.

Porous materials (such as organic polyamine cage compounds) and methods of stabilising porous materials which are otherwise prone to pore-collapse are described. Such stabilisation is accomplished through the use of molecular ties to create bridges between reactive groups of a (potentially) porous material to thereby strengthen and stabilise the porous structure. The chemistry involved in, and the results of, the stabilisation of porous materials to provide a new sorption composition comprising the very materials which are generally prone to pore-collapse are also described.