A zeolite membrane complex includes a porous support and a zeolite membrane formed on the support and composed of ETL-type zeolite. In an X-ray diffraction pattern obtained by X-ray irradiation onto a surface of the zeolite membrane, an intensity of a peak existing in the vicinity of 2θ=9.9° and an intensity of a peak existing in the vicinity of 2θ=19.8° are each not lower than 0.8 times an intensity of a peak existing in the vicinity of 2θ=7.9°.

The present disclosure is directed to a potassium-form MER framework type zeolite, a MER framework type zeolite having a stick-like morphology, wherein the potassium is present as K.sup.+ in extra-framework locations. The zeolite is essentially free of an extra-framework cation other than potassium.

The present disclosure is directed to a potassium-form MER framework type zeolite, a MER framework type zeolite having a stick-like morphology, wherein the potassium is present as K.sup.+ in extra-framework locations. The zeolite is essentially free of an extra-framework cation other than potassium.

A method for producing a hierarchical mesoporous beta includes mixing a beta zeolite with an aqueous metal hydroxide solution and heating the beta zeolite and the aqueous metal hydroxide mixture to produce a desilicated beta zeolite, contacting the desilicated beta zeolite with an ammonium salt solution to produce an intermediate hierarchical mesoporous beta zeolite, and treating the intermediate hierarchical mesoporous beta zeolite with an acidic solution to produce the hierarchical mesoporous beta zeolite. The hierarchical mesoporous beta zeolite includes a molar ratio of silicon to aluminum of greater than 12.5, a total pore volume of greater than or equal to the total pore volume of the intermediate hierarchical mesoporous beta zeolite, and an average mesopore size of greater than or equal to the average mesopore size of the hierarchical mesoporous beta zeolite. The method may also include calcining the intermediate hierarchical mesoporous beta zeolite.

A method for producing a hierarchical mesoporous beta includes mixing a beta zeolite with an aqueous metal hydroxide solution and heating the beta zeolite and the aqueous metal hydroxide mixture to produce a desilicated beta zeolite, contacting the desilicated beta zeolite with an ammonium salt solution to produce an intermediate hierarchical mesoporous beta zeolite, and treating the intermediate hierarchical mesoporous beta zeolite with an acidic solution to produce the hierarchical mesoporous beta zeolite. The hierarchical mesoporous beta zeolite includes a molar ratio of silicon to aluminum of greater than 12.5, a total pore volume of greater than or equal to the total pore volume of the intermediate hierarchical mesoporous beta zeolite, and an average mesopore size of greater than or equal to the average mesopore size of the hierarchical mesoporous beta zeolite. The method may also include calcining the intermediate hierarchical mesoporous beta zeolite.

The present invention relates to a method for the preparation of a colloidal aqueous suspension of stable zeolite nanocrystals having framework structures comprising at least one cation selected from Gd, Fe, Cu and Ce, said structures being loaded with a gas selected from O.sub.2, CO.sub.2 and mixtures thereof, to the colloidal aqueous suspension of zeolite nanocrystals obtained by such a process, and to the use of said suspension in therapy, more particularly in cancer therapy and hypoxia-related diseases and/or in diagnosis.

The present invention relates to a method for the preparation of a colloidal aqueous suspension of stable zeolite nanocrystals having framework structures comprising at least one cation selected from Gd, Fe, Cu and Ce, said structures being loaded with a gas selected from O.sub.2, CO.sub.2 and mixtures thereof, to the colloidal aqueous suspension of zeolite nanocrystals obtained by such a process, and to the use of said suspension in therapy, more particularly in cancer therapy and hypoxia-related diseases and/or in diagnosis.

The present invention relates to a zeolitic material having the IWR type framework structure, wherein the zeolitic material comprises YO.sub.2 and X.sub.2O.sub.3 in its framework structure, wherein Y is a tetravalent element and X is a trivalent element, and wherein the framework structure of the zeolitic material comprises less than 5 weight-% weight-% of Ge calculated as GeO.sub.2 and based on 100 weight-% weight-% of YO.sub.2 contained in the framework structure, and less than 5 weight-% weight-% of B calculated as B.sub.2O.sub.3 and based on 100 weight-% weight-% of X.sub.2O.sub.3 contained in the framework structure. Further, the present invention relates to a process for preparing a zeo-litic material having the IWR type framework structure, wherein the zeolitic material comprises YO.sub.2 and X.sub.2O.sub.3 in its framework structure, wherein Y is a tetravalent element and X is a trivalent element.

The present invention relates to a zeolitic material having the IWR type framework structure, wherein the zeolitic material comprises YO.sub.2 and X.sub.2O.sub.3 in its framework structure, wherein Y is a tetravalent element and X is a trivalent element, and wherein the framework structure of the zeolitic material comprises less than 5 weight-% weight-% of Ge calculated as GeO.sub.2 and based on 100 weight-% weight-% of YO.sub.2 contained in the framework structure, and less than 5 weight-% weight-% of B calculated as B.sub.2O.sub.3 and based on 100 weight-% weight-% of X.sub.2O.sub.3 contained in the framework structure. Further, the present invention relates to a process for preparing a zeo-litic material having the IWR type framework structure, wherein the zeolitic material comprises YO.sub.2 and X.sub.2O.sub.3 in its framework structure, wherein Y is a tetravalent element and X is a trivalent element.

A hydrophobic zeolite which has a water adsorption of (6 g/100 g zeolite) or less at 25° C. at RH 60% and a toluene adsorption of (9 g/100 g zeolite) or more at 25° C. under 0.01 kPa.