Multimetal oxide composition comprising Mo, Bi, Fe, Cu and one or more than one of the elements Co and Ni and use thereof.

According to one or more embodiments described, a zeolite supported catalyst may be synthesized by a process that includes combining a colloidal mixture with a metal oxide support material to form a support precursor material, processing the support precursor material to form a support material, and impregnating the support material with one or more metals to form the zeolite supported catalyst. The colloidal mixture may include nano-sized zeolite crystals, and the nano-sized zeolite crystals may have an average size of less than 100 nm.

Porous, extruded titania-based materials further comprising one or more acids and/or prepared using one or more acids, Fischer-tropsch catalysts comprising them, uses of the foregoing, processes for making and using the same and products obtained from such processes.

Disclosed herein are a catalyst composition, catalyst devices, and methods for removing formaldehyde, volatile organic compounds, and other pollutants from an air flow stream. The catalyst composition including manganese oxide, optionally one or more of alkali metals, alkaline earth metals, zinc, iron, binder, an inorganic oxide, or carbon.

Contact lens treatment systems and methods for disinfecting contact lenses are described. These systems and methods utilize a coated catalytic disc, which contains a support disc and a manganese oxide present on at least a portion of the support disc. The coated catalytic disc contains 300 g to 1800 g of manganese, often in the form of manganese dioxide.

A supported catalyst, its method of preparation and use in hydrogenation methods, which catalyst contains an oxide substrate that is for the most part calcined aluminum and an active phase that contains nickel, with the nickel content between 5 and 65% by weight in relation to the total mass of the catalyst, with the active phase not containing a metal from group VIB, the nickel particles having a diameter that is less than or equal to 20 nm, the catalyst having a median mesopore diameter of between 14 nm and 30 nm, a median macropore diameter of between 50 and 200 nm, a mesopore volume that is measured by mercury porosimetry that is greater than or equal to 0.40 mL/g, and a total pore volume that is measured by mercury porosimetry that is greater than or equal to 0.42 mL/g.

An exhaust gas purification catalyst is provided for which a purification performance is excellent and particle growth of a catalyst metal is suppressed. The exhaust gas purification catalyst is provided with a substrate and a catalyst layer formed on the substrate. The catalyst layer contains a catalyst metal that functions as an oxidation and/or reduction catalyst and contains a support that supports the catalyst metal. The support is constituted of a porous ceramic that, in its volumetric pore diameter distribution measured based on a nitrogen gas adsorption method, has a pore diameter P.sub.10 corresponding to a cumulative 10% from a small pore side and a pore diameter P.sub.90 corresponding to a cumulative 90% from the small pore side that are both in a range from 5 to 50 nm.

Oxidative dehydrogenation catalysts for converting lower paraffins to alkenes such as ethane to ethylene when prepared as an agglomeration, for example extruded with supports chosen from slurries of TiO.sub.2, ZrO.sub.2 Al.sub.2O.sub.3, AlO(OH) and mixtures thereof have a lower temperature at which 25% conversion is obtained.

Embodiments of zeolite composite catalysts and methods of producing the zeolite composite catalysts are provided, where the methods comprise dissolving in an alkaline solution a catalyst precursor comprising at least one mesoporous zeolite while heating, stirring, or both to yield a dissolved zeolite solution, where the mesoporous zeolite has a molar ratio of SiO.sub.2/Al.sub.2O.sub.3 of at least 30, where the mesoporous zeolite comprises zeolite beta, adjusting the pH of the dissolved zeolite solution, aging the pH adjusted dissolved zeolite solution to yield solid zeolite composite from the dissolved zeolite solution, and calcining the solid zeolite composite to produce the zeolite composite catalyst, where the zeolite composite catalyst has a mesostructure comprising at least one disordered mesophase and at least one ordered mesophase, and where the zeolite composite catalyst has a surface area defined by the Brunauer-Emmett-Teller (BET) analysis of at least 600 m.sup.2/g.

The present invention discloses a novel magnetic BiOClBi.sub.24O.sub.31Cl.sub.10/MnFe.sub.2O.sub.4Fe.sub.2O.sub.3 semiconductor photocatalyst as a staggered multi-heterojunction nano-photocatalyst for pharmaceutical effluents remediation, and preparation method and use thereof. The semiconductor photocatalysts are at weighted ratios 9:1 4:1, 7:3 and 3:2 of BiOClBi.sub.24O.sub.31Cl.sub.10 and MnFe.sub.2O.sub.4Fe.sub.2O.sub.3 semiconductor. The BiOClBi.sub.24O.sub.31Cl.sub.10/MnFe.sub.2O.sub.4Fe.sub.2O.sub.3 semiconductor photocatalyst with 10% MnFe.sub.2O.sub.4Fe.sub.2O.sub.3 is a solar light activated photocatalyst for pharmaceutical effluents remediation. The pharmaceutical effluents include ofloxacin antibiotic. The mentioned semiconductor photocatalyst effectively removes the ofloxacin (OFL) antibiotic from polluted aqueous solution under simulated solar light, facilitates separation of photocatalyst from treated aqueous solution using magnetic property, enhances light absorption edge, improves intra-particle mass transfer, increases adsorption capacity and promotes efficient surface reactions, which includes: increasing the light absorption range, increasing quantum efficiency and reducing the recombination phenomenon.