The present invention is directed to a degradation composition, methods and kits for degrading organic pollutants comprising reduced copper based nanoparticles-polymer complex (Cu-NPs) and an oxidant.

The present invention relates to the technical field of polymer composites, in particular to a poly (cyclic butylene terephthalate)/silicon dioxide nanocomposite, wherein the added silicon dioxide is catalyst-modified nanosilicon dioxide.

The disclosure provides for MOF heterolites comprised of ordered superlattices of MOFs, the manufacture thereof, and the use of the MOF heterolites for various applications, such as gas separation and/or storage, catalysis, light harvesting, and meta-materials.

The invention relates to a method allowing functionalization of carbon nano-objects and in particular carbon nanotubes and graphene nanosheets, a composition comprising nano-objects functionalized by this method, suspended in an organic solvent, as well as to the uses of this composition. Suitable applications include elaboration of composite materials and, in particular, of nano-composite materials, materials intended for photovoltaics, detection devices of the detector/sensor or biodetector/biosensor type, photocatalysis systems, targeted vectorization systems for compounds of therapeutic or diagnostic interest or further contrast agents for medical imaging.

A polymeric composition includes an organic polymeric substrate and metal-organic frameworks on the surface of the polymeric substrate. The metal-organic frameworks cover at least 90% of the surface area of the polymeric substrate.

According to one embodiment, a catalyst system that reduces polymeric fouling may comprise at least one titanate compound, at least one aluminum compound, and at least one antifouling agent or a derivative thereof. The antifouling agent may comprise a structure comprising a central aluminum molecule bound to an R1 group, bound to an R2 group, and bound to an R3 group. One or more of the chemical groups R1, R2, and R3 may be antifouling groups comprising the structure O((CH.sub.2).sub.nO).sub.mR4, where n is an integer from 1 to 20, m is an integer from 1 to 100, and R4 is a hydrocarbyl group. The chemical groups R1, R2, or R3 that do not comprise the antifouling group, if any, may be hydrocarbyl groups.

A method for preparing formamide compounds via hydrogenation of carbon dioxide catalyzed by porous materials includes the following steps: by taking porous organometallic polymers as catalysts, reacting amine compounds with carbon dioxide and hydrogen under an air atmosphere to prepare formamide compounds. The method has the advantages of high reaction efficiency, good selectivity, mild conditions, economy, environmental protection, and simple operation. The catalysts are solid organometallic polymers with large specific surface area, strong carbon dioxide adsorption, hierarchical pore distribution, and uniformly dispersed metal centers. They are designed and synthesized as the reaction catalysts by changing the proportion of the cross-linked comonomer. The catalysts can be especially used for catalytic synthesis of fine chemical N, N-dimethylformamide (DMF) without addition of any additional solvent, alkali, or other additives, which is convenient for separation and purification of DMF.

The present invention discloses an embedded hydrothermal-resistant NiSnCS nano-catalyst and a preparation method therefor and use thereof. The method includes the following steps: firstly dissolving a Ni salt, a Sn salt and chitosan to form a sol solution; and then removing a solvent from the sol solution to obtain a gel, and subjecting the gel to carbonization treatment to obtain the embedded hydrothermal-resistant NiSnCS nano-catalyst; wherein temperature of the carbonization treatment is 400 C. to 600 C., and duration of the carbonization treatment is 1 to 4 hours. The embedded hydrothermal-resistant NiSnCS nano-catalyst prepared by the present invention significantly improves the dispersion of NiSn catalytic active sites and the stability of the structure and activity in hydrothermal environments. When used for the synthesis of higher alcohols from lower alcohols, the catalyst demonstrates excellent catalytic efficiency and hydrothermal resistance, as well as easy separation and recycling, low pollution, and excellent recycling performance.

The present invention discloses an embedded hydrothermal-resistant NiSnCS nano-catalyst and a preparation method therefor and use thereof. The method includes the following steps: firstly dissolving a Ni salt, a Sn salt and chitosan to form a sol solution; and then removing a solvent from the sol solution to obtain a gel, and subjecting the gel to carbonization treatment to obtain the embedded hydrothermal-resistant NiSnCS nano-catalyst; wherein temperature of the carbonization treatment is 400 C. to 600 C., and duration of the carbonization treatment is 1 to 4 hours. The embedded hydrothermal-resistant NiSnCS nano-catalyst prepared by the present invention significantly improves the dispersion of NiSn catalytic active sites and the stability of the structure and activity in hydrothermal environments. When used for the synthesis of higher alcohols from lower alcohols, the catalyst demonstrates excellent catalytic efficiency and hydrothermal resistance, as well as easy separation and recycling, low pollution, and excellent recycling performance.