The application belongs to the technical field of photocatalyst preparation, and specifically relates to a MOFs/COFs heterojunction composite photocatalyst and a preparation method and application thereof. The application uses melamine (MA), 1,3,5-trimethylphloroglucinol (Tp), 2-aminoterephthalic acid, and ferrous acetate as reaction raw materials, a catalyst is added, and a mechanical grinding method is used, to prepare the MOFs/COFs heterojunction composite photocatalyst. The catalyst is simple and green in preparation method, and has the better degradation efficiency for pollutants in water, especially carbamazepine.

This invention relates to a Cu-BTC MOF which is water stable. The Cu-BTC MOF has been modified by substituting some of the BTC ligand (1,3,5, benzene tricarboxylic acid) with 5-aminoisophthalic acid (AIA). The resultant MOF retains at least 40% of its as synthesized surface area after exposure to liquid water at 60° C. for 6 hours. This is an unexpected result versus the MOF containing only the BTC ligand. This MOF can be used to abate contaminants such as ammonia in gas streams and especially air streams.

Various processes for preparing C.sub.4 aldoses and/or ketones thereof are described. Various processes are described for preparing C.sub.4 aldoses and/or ketones thereof from feed compositions comprising glycolaldehyde. Also, various processes for preparing useful downstream products and intermediates, such as erythritol and erythronic acid, from the C.sub.4 aldoses and/or ketones thereof are described.

A method, comprising i) contacting an aqueous solution of an organic ligand salt of the formula A.sub.X(L.sup.−X) with a mesoporous material (MPM) to form an impregnated mesoporous salt material of the formula A.sub.X(L.sup.−X)/MPM, ii) treating the impregnated mesoporous salt material with an aqueous acidic solution to form an impregnated mesoporous acid material of the formula H.sub.X(L.sup.−X)/MPM, iii) contacting an aqueous solution of a metal precursor of the formula M.sup.+y(B)y with the impregnated mesoporous acid material to form an impregnated mesoporous metal organic framework precursor of the formula [M.sup.+y(B).sub.y][H.sub.x(L.sup.−x)]/MPM, and iv) at least one of 1) heating the impregnated mesoporous metal organic framework precursor in the absence of a solvent or 2) exposing the impregnated mesoporous metal organic framework precursor to a volatile vapor in the absence of a solvent such that the heating or the exposing forms a hybrid material of the formula (M.sup.+yL.sup.−x)/MPM, wherein the hybrid material comprises a nano-crystalline metal organic framework (MOF) embedded within the mesoporous material.

A zinc-based metal organic framework and method of making is described. The zinc-based metal organic framework is in the form of an interpenetrating diamondoid framework where each Zn.sup.2+ ion center is linked with four other Zn.sup.2+ ion centers in a distorted tetrahedral geometry. The linking occurs through diamine and dicarboxylic acid linkers. The zinc-based metal organic framework may be deposited on a transparent conducting film and used as a photoelectrode for photoelectrochemical water splitting.

Provided are a catalyst composition with improved processability and chemical warfare agent degradation ability, a film composite manufactured by casting the same, and a preparation method thereof. Specifically, provided are a catalyst composition including a copolymer of a first polymer and a second polymer; and a metal-organic framework (MOF), and a film composite including the same, wherein processability and catalytic activity are improved.

Compositions comprising metal organic frameworks and related methods and uses are generally provided, including use in selective carbonylation of heterocyclic compounds.

The disclosed relates to a method for preparing an organic zinc catalyst used in the synthesis of a polyalkylene carbonate resin, an organic zinc catalyst provided therefrom, and a method for preparing a polyalkylene carbonate resin using the catalyst. The organic zinc catalyst according to the present disclosure includes a predetermined amount of Zr on the surface through a simple process, and thus can exhibit improved catalytic activity as compared to a conventional catalyst in the polymerization process for preparing a polyalkylene carbonate resin.

A method for the manufacture of an oxygen reduction reaction (ORR) catalyst, the method comprising; providing a metal organic framework (MOF) material having a specific internal pore volume of 0.7 cm.sup.3g.sup.−1 or greater; providing a source of iron and/or cobalt; pyrolysing the MOF material together with the source of iron and/or cobalt to form the catalyst, wherein the MOF material comprises nitrogen and/or the MOF material is pyrolysed together with a source of nitrogen and the source of iron and/or cobalt is disclosed.

A nanomaterial-based gas sensor system comprising a low voltage circuitry which includes a transducer to detect changes in electrical properties of a multi-channel gas sensor array, analog signal conditioning, and an A/D conversion to provide a signal to a digital back-end.