A magnetic polymer adsorption material, preparation method and use thereof, which relate to the field of magnetic polymer materials. The preparation method comprises: (1) preparing magnetic nanoparticles; (2) dissolving the magnetic nanoparticles in a pore-forming agent, adding N-vinylpyrrolidone, divinylbenzene and an initiator respectively, and mixing uniformly; (3) adding an emulsifier and a dispersant into an aqueous solution; adding a part of the oil phase solution prepared in step (2) at the temperature below 60° C., and adding the rest of the oil phase solution when the temperature rises to 60° C. or above, reacting with stirring, precipitating and filtering the reacted solution, washing and drying the precipitate, and finally obtaining the magnetic polymer adsorption material. The material has the particle size of 2-100 μm, the magnetization of 5-19.5 emu/g and the specific surface area of 210-950 m.sup.2/g, and can be applied to the adsorption of inorganic and organic matters in solutions, the controlled release of inorganic and organic matters, and the separation of different substances.

A magnetic polymer adsorption material, preparation method and use thereof, which relate to the field of magnetic polymer materials. The preparation method comprises: (1) preparing magnetic nanoparticles; (2) dissolving the magnetic nanoparticles in a pore-forming agent, adding N-vinylpyrrolidone, divinylbenzene and an initiator respectively, and mixing uniformly; (3) adding an emulsifier and a dispersant into an aqueous solution; adding a part of the oil phase solution prepared in step (2) at the temperature below 60° C., and adding the rest of the oil phase solution when the temperature rises to 60° C. or above, reacting with stirring, precipitating and filtering the reacted solution, washing and drying the precipitate, and finally obtaining the magnetic polymer adsorption material. The material has the particle size of 2-100 μm, the magnetization of 5-19.5 emu/g and the specific surface area of 210-950 m.sup.2/g, and can be applied to the adsorption of inorganic and organic matters in solutions, the controlled release of inorganic and organic matters, and the separation of different substances.

Provided is a humidity conditioning material with which an amount of absorbed moisture or an amount of released moisture is easily understood. Moreover, provided is a humidity conditioning device including the above humidity conditioning material. Furthermore, provided is a method for manufacturing a humidity conditioning material with which an amount of absorbed moisture or an amount of released moisture is easily understood, and the humidity conditioning material has high humidity conditioning performance. In addition, the humidity conditioning material includes: a humidity conditioning liquid containing a hygroscopic substance; and a holding portion holding the humidity conditioning liquid into a predetermined shape. The holding portion is formed of a polymeric material. The hygroscopic substance contains a hygroscopic metal salt. The humidity conditioning liquid contains a pH indicator, and changes in color in accordance with an amount of moisture contained in the humidity conditioning liquid.

Provided is a humidity conditioning material with which an amount of absorbed moisture or an amount of released moisture is easily understood. Moreover, provided is a humidity conditioning device including the above humidity conditioning material. Furthermore, provided is a method for manufacturing a humidity conditioning material with which an amount of absorbed moisture or an amount of released moisture is easily understood, and the humidity conditioning material has high humidity conditioning performance. In addition, the humidity conditioning material includes: a humidity conditioning liquid containing a hygroscopic substance; and a holding portion holding the humidity conditioning liquid into a predetermined shape. The holding portion is formed of a polymeric material. The hygroscopic substance contains a hygroscopic metal salt. The humidity conditioning liquid contains a pH indicator, and changes in color in accordance with an amount of moisture contained in the humidity conditioning liquid.

A pyrazole metal complex for absorption of carbon dioxide, a method for preparing the pyrazole metal complex, and a method for absorbing carbon dioxide are provided; wherein the product produced by reacting pyrazole metal complex and carbon dioxide may be transformed into several economically valuable compounds.

A filter medium for removal of contaminants from wastewater. The filter medium includes a walnut shell particle having a metal hydro(oxide) nanoparticle bonded to the surface of the nut shell particle. The filter medium is particularly useful for treating produced water and wastewater generated in steam-assisted gravity drainage (SAGD) in recovery of hydrocarbons from oil sands to remove total organic carbon and silica. Processes for preparing the filter medium and for treating wastewater using the filter medium are also provided.

The present invention relates to a process for removing arsine from hydrocarbon mixture having 2 to 4 carbon atoms. Said process comprises the contact of the hydrocarbon mixture having 2 to 4 carbon atoms with the adsorbent, wherein said adsorbent is the metal organic frameworks (MOFs) comprising: a) at least 1 transition metal selected from group 1B metal, group 2B metal, and group 4B metal, and b) the organic ligand selected from dicarboxylic acid compound or tricarboxylic acid compound, and wherein said adsorbent is subjected to the treatment with alcohol.

In some embodiments, the present disclosure pertains to a method for capturing alkenes that includes: associating the alkenes with metal-organic frameworks, where the metal-organic frameworks includes one or more metals and one or more ligands coordinated with the one or more metals, and where the metal-organic frameworks are conductive; and oxidizing the metal-organic frameworks, where the oxidizing results in a capturing of the alkenes by the metal-organic frameworks. Additional embodiments of the present disclosure pertain to a system for capturing alkenes that includes: metal-organic frameworks, where the metal-organic frameworks include one or more metals and one or more ligands coordinated with the one or more metals, and where the metal-organic frameworks are conductive; and an alkene feed source associated with the metal-organic frameworks, where the alkene feed source is configured to deliver an alkene feed to the system.

A method for producing modified sawdust sorbent that includes sulfonating sawdust with sulfuric acid and oxidizing the sulfonated sawdust with hydrogen peroxide. The method yields modified sawdust sorbent containing sulfonated and oxidized cellulose. The modified sawdust sorbent has a higher surface area, higher organic dye adsorption capacity, and more rapid organic dye adsorption rate than unmodified sawdust. A method of using the modified sawdust sorbent for organic dye removal from water includes contacting dye contaminated water with the modified sawdust sorbent and forming a dye-impregnated sorbent and decontaminated water.

A method for separating classes of hydrocarbon compounds from a feed stream including a hydrocarbon mixture is disclosed. The method includes the steps of passing a feed stream through a plurality of separation units arranged in a series in any order, wherein each separation unit has an adsorbent material; and separating classes of hydrocarbon compounds from the feed stream. When one of the plurality of separation units comprises an adsorbent material that is a metal organic framework selected from a zirconium, hafnium, cerium, or titanium-based metal organic framework, then another plurality of separation units includes an adsorption material that is different from the metal organic framework. The method is conducted in a liquid phase. The method can also use a single separation unit with a continuous cyclic bed apparatus. The method can be combined with refining and downstream processes.