A method for producing a modified sawdust sorbent. The method involves sulfonating sawdust with sulfuric acid and oxidizing the sulfonated sawdust with hydrogen peroxide. The method yields a 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. Also disclosed is a method of using the modified sawdust sorbent for organic dye removal from water.

A method of water treatment includes providing water that includes at least one contaminant. An effective amount of at least one filter media is added to the to the water that includes at least one contaminant. The water and the at least one filter media are agitated to form a homogeneous mixture. A cationic biopolymer is added to the homogeneous mixture of water and the at least one filter media. The water is separated from the at least one contaminant and the at least one filter media.

A composite material including a covalent organic framework (COF) single crystal having a major axis length of larger than 120 μm or a COF polycrystal including a plurality of the single crystals, and at least one heat-storage compound. The heat-storage compound is a compound that generates heat or absorbs heat by adsorption to or desorption from the COF single crystal. Also, a heat dissipation/storage member containing the composite material as a heat storage/dissipation material a COF single crystal having a major axis length of larger than 120 μm, and a method for producing a COF single crystal by crystallizing COF raw material compounds via a solution containing an ionic liquid or an organic salt and an equilibrium adjusting agent to grow a COF single crystal.

The present invention relates to using modified cellulose (e.g., nitrated cellulose) for separating carbon nanotubes (CNTs). A raw mixture of CNTs of different structures or chiral angles (chiralities), can be separated into fractions, based on their selective permeation through a separation column filled with nitrated cellulose. The present invention is particularly useful in separating semiconducting CNTs and metallic CNTs.

The present invention relates to using modified cellulose (e.g., nitrated cellulose) for separating carbon nanotubes (CNTs). A raw mixture of CNTs of different structures or chiral angles (chiralities), can be separated into fractions, based on their selective permeation through a separation column filled with nitrated cellulose. The present invention is particularly useful in separating semiconducting CNTs and metallic CNTs.

An aminated siliceous adsorbent, which is the reaction product of dried acidified rice husk ash having disordered mesopores and an amino silane, wherein amine functional groups are present on an external surface and within the mesopores of the dried acidified rice husk ash, and wherein the aminated siliceous adsorbent has a carbon content of 24 to 30 wt. %, based on a total weight of the aminated siliceous adsorbent. A method of making the aminated siliceous adsorbent and a method of capturing CO.sub.2 from a gas mixture with the aminated siliceous adsorbent.

An aminated siliceous adsorbent, which is the reaction product of dried acidified rice husk ash having disordered mesopores and an amino silane, wherein amine functional groups are present on an external surface and within the mesopores of the dried acidified rice husk ash, and wherein the aminated siliceous adsorbent has a carbon content of 24 to 30 wt. %, based on a total weight of the aminated siliceous adsorbent. A method of making the aminated siliceous adsorbent and a method of capturing CO.sub.2 from a gas mixture with the aminated siliceous adsorbent.

The present disclosure relates to water-absorbent resin particles in which a contact angle of 0.9% by mass saline at 25° C.±2° C. is 100 degrees or larger, and an absorbent material containing the water-absorbent resin particles.

The present disclosure relates to water-absorbent resin particles in which a contact angle of 0.9% by mass saline at 25° C.±2° C. is 100 degrees or larger, and an absorbent material containing the water-absorbent resin particles.

A manufacturing method for a moisture permeable device suitable for use in a refrigerator where the device includes a corresponding first surface (110) and second surface (111); at least parts of the first surface (110) and the second surface (111) of the moisture permeable device define a hollow cavity (301); through-holes are provided at regions of the first surface (110) and the second surface (111) of the moisture permeable device defining the cavity (301); and regenerated cellulose is accommodated in the cavity (301) includes the steps of pouring a regenerated cellulose slurry with a tackifier added thereto into the cavity (301) to form a moisture permeable film, thus allowing omission of an assembling procedure and a non-woven support.