A membrane including a polymer substrate having pore channels and a metal-organic framework disposed on the polymer substrate. Methods of producing the membrane are described. Methods of separating gases using the membrane are also provided.

Disclosed herein are carbon molecular sieves and methods of making the same through the pyrolysis of a polymer precursor in the presence of a reactive gas stream including a hydrogen source.

A membrane including a polymer substrate having pore channels and a metal-organic framework disposed on the polymer substrate. Methods of producing the membrane are described. Methods of separating gases using the membrane are also provided.

Disclosed herein is a porous membrane comprising a porous substrate; a porous ceramic coating disposed on the porous substrate; where an average pore size of pores in the porous substrate are larger than an average pore size of pores in the porous coating. Disclosed herein is a method of manufacturing a porous membrane comprising disposing upon a porous substrate a porous ceramic coating, where the porous ceramic coating has an average pore size that is less than an average pore size of the porous substrate.

A membrane including a polymer substrate having pore channels and a metal-organic framework disposed on the polymer substrate. Methods of producing the membrane are described. Methods of separating gases using the membrane are also provided.

The present disclosure relates to an alkylated graphene oxide membrane comprising a plurality of graphene oxide layers, each graphene oxide layer including at least one graphene oxide sheet covalently coupled to a chemical spacer, the chemical spacer being of Formula I:

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The present disclosure also relates to a filtration apparatus comprising an alkylated graphene oxide membrane disposed on a support substrate.

The present invention relates to the field of water treatment/fluoride removal and to materials/devices useful in such processes. Specifically, the invention provides for hybrid materials comprising amyloid fibrils and ZrO2; and to composite materials further comprising a support material. The invention further provides for the treatment of water using such hybrid or composite materials.

The present invention discloses a new method for synthesizing a high-quality inorganic film by microwave heating, which relates to the field of preparation of inorganic materials. The method for synthesizing a high-quality inorganic film by microwave heating in the present invention allows a fine design and control of the temperature increase process during microwave heating, wherein the matrix and the synthesis solution is put into the microwave reactor at first, the temperature interval between the initial temperature and the target temperature of the synthesis solution is then divided into multiple sections, each of which sets a temperature increase rate, and then when the temperature reaches the target temperature after the designed temperature increase process, the synthesis solution reacts for a period of time at the target temperature, finally the high-quality inorganic film can be obtained after the treatment of washing and drying. The inorganic film prepared by the method of the present invention is dense and thin.

Disclosed is a method of manufacturing a partially freestanding two-dimensional crystal film (16, 16′), the method comprising providing a substrate (10) carrying a catalyst layer (14) for forming the two-dimensional crystal layer on a first surface; forming the two-dimensional crystal film on the catalyst layer; covering at least the two-dimensional crystal film with a protective layer (18); etching a cavity (24) in a second surface of the substrate, the second surface being opposite to the first surface, said cavity terminating on the catalyst layer; etching the exposed part of the catalyst layer from the cavity; and removing the protective layer, thereby obtaining a two-dimensional crystal film that is freestanding over said cavity. A device manufactured in this manner is also disclosed.

The invention relates to a device for dispensing an aqueous liquid through an interface membrane made partially hydrophilic and partially hydrophobic, made so that when in operation, during each operation of dispensing a metered amount of liquid, the streams of air and liquid flow alternately in a capillary channel (18) downstream from the membrane. Said interface membrane (7) is made of a filtering material which includes biocidal metal cations in the body thereof. Said device comprises a porous insert (8), which is permeable both to liquid and to air, which is arranged upstream from the membrane in the path of the fluids and which is made of a material including sites with negative charges capable of attracting biocidal metal cations from said membrane.