A method for producing a composite material containing a porous body having pores inside the porous body and a porous coordination polymer compound, in which the porous body has a network structure of Si—O bonds obtained by copolymerizing a dialkoxysilane and a trialkoxysilane, and the porous coordination polymer compound is carried in the pores of the porous body via a solvent.

Copper based nanoparticle composite compositions, methods, and systems for purification and sterilization of contaminated water are provided.

The present invention discloses novel porous polymeric compositions comprising random copolymers of amides, imides, ureas, and carbamic-anhydrides, useful for the synthesis of monolithic bimodal microporous/macroporous carbon aerogels. It also discloses methods for producing said microporous/macroporous carbon aerogels by the reaction of a polyisocyanate compound and a polycarboxylic acid compound, followed by pyrolytic carbonization, and by reactive etching with CO.sub.2 at elevated temperatures. Also disclosed are methods for using the microporous/macroporous carbon aerogels in the selective capture and sequestration of carbon dioxide.

A filtration device for an air purification appliance includes a first filtering cartridge structure containing a classic absorbent or adsorbent material selected from activated carbon or zeolite and a second, different filtering cartridge structure holding a filtering medium consisting of a specific adsorbent material which is porous and functionalized with at least one probe molecule in such a way as to trap aldehyde-type chemical contaminants.

A sol-gel sorbent or chromatography stationary phase is a particulate metal oxide gel containing polymeric segments uniformly distributed throughout the metal oxide gel. The metal oxide gel is an oxide from silicone or other metal oxide that can have one of the valence bonds attached to an organic group and the remainder occupied by oxygens that can be provided as an oxide or an alkoxide or aryl oxide of the polymeric segments. The particles are used for an SPE sorbent or as a packing for a reversed phase high-performance liquid chromatography (RP-HPLC), a normal phase high-performance liquid chromatography (NP-HPLC) column or a hydrophilic interaction liquid chromatography (HILIC) column.

A well treatment material for introduction into a subterranean formation is provided. The well treatment material can include a biocide collected onto a sorbent. The biocide can be capable of being desorbed at a generally constant rate over an extended period of time into the subterranean formation. The biocide can be an oxidizing biocide or a non-oxidizing biocide. The sorbent material can include one or more of an absorbent material and an adsorbent material. The biocide can be chlorine dioxide. The sorbent can be one or more of silica gel and graphite.

The present invention achieves a moisture absorbing material which enables efficient dehumidification without supercooling or large heat quantity; and a dehumidifier in which the moisture absorbing material is used. The moisture absorbing material can be a dried product of a polymer gel in which an interpenetrating polymer network structure or a semi-interpenetrating polymer network structure is formed by (a) a stimuli-responsive polymer whose affinity with water changes reversibly in response to an external stimulus and (b) a hydrophilic polymer.

Systems and methods for removing a preservative from a solution, emulsion, or suspension comprising an ophthalmic agent are described herein. Said systems comprise a preservative-removing polymeric matrix comprising an active matrix component and an inactive matrix component. A method for administering an ophthalmic agent comprises providing a solution, emulsion, or suspension comprising an ophthalmic agent, and a preservative; and providing a preservative-removing polymeric matrix comprising an active matrix component and an inactive matrix component, and wherein the polymeric matrix is configured to selectively absorb the preservative when the solution, emulsion, or suspension is passed therethrough.

This invention is directed to amorphous and crystalline titanosilicate materials that have an unexpected selectivity for cesium and strontium, especially in the presence of high levels of competing ions. The titanosilicates of this invention show very high, unexpected selectivity in the presence of such competing cations such as sodium, calcium, magnesium and potassium, such as present in seawater.

The invention relates to alkenyl(perfluoroalkyl)phosphinic acids, to the preparation and intermediates thereof, to the use thereof as monomers for the preparation of oligomers and/or polymers, to the corresponding oligomers/polymers, to the corresponding support materials comprising the oligomers/polymers, and to the use thereof as ion exchangers, as catalysts or extraction medium and corresponding salts thereof.