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.

In one aspect, composite particles are described herein. A composite particle comprises a substrate, composite metallic or metal oxide nanoparticles supported by the substrate and an amphiphilic or hydrophilic component associated with the substrate, wherein the composite metallic or metal oxide nanoparticles comprise iron and at least one additional transition metal.

Described herein is a functional graphene composition comprising a graphene scaffold and one or more metal chelating functional groups covalently bonded to the graphene scaffold and a porous substrate that includes the functional graphene composition. Also provided is a method of removing dissolved metals from an aqueous liquid, such as, acid mine drainage.

A composition and a method for culturing cells. The composition includes a plurality of buoyant hollow particles, the buoyant hollow particles comprising a siliceous surface; and a plurality of mammalian cells attached to the siliceous surface of the buoyant hollow particles; wherein the buoyant hollow particles are less dense than a media; and wherein the average seeding density is 3-50 adherent cells/buoyant hollow particle.

The present disclosure relates to a solid adsorbent for capturing carbon dioxide (CO.sub.2) from a gas stream comprising CO.sub.2, the solid adsorbent comprising an amine covalently bonded to a polymer resin (e.g., a polystyrene resin), wherein the solid adsorbent has a CO.sub.2 uptake capacity of greater than about 7 wt. % at a temperature of about 40° C., and wherein the solid adsorbent has a CO.sub.2 uptake capacity of less than about 1.5 wt. % at a temperature of about 100° C., as measured when the gas stream further comprises a concentration of the CO.sub.2 of about 4 vol. %, by volume of the gas stream.

A chromatography column for the use of separation of acidic sugar chains, wherein the column comprises a first column and a second column, the second column connected by a flow path downstream of an outlet of the first column, and selected from the following (1) or (2): (1) the carrier of the first column is hydrophobically modified silica having a group containing a primary amine, a secondary amine or/and a tertiary amine, and the carrier of the second column is a resin having a group containing a primary amine, a secondary amine or/and a tertiary amine; (2) the carrier of the first column is a resin having a group containing a primary amine, a secondary amine or/and a tertiary amine, and the carrier of the second column is hydrophobically modified silica having a group containing a primary amine, a secondary amine, or/and a tertiary amine.

Coating compositions and methods for using the same are disclosed. The coating compositions can include an aminosilica adsorbent. The coating compositions can adsorb CO.sub.2.

A method of treating wood chips to be used as a media for ameliorating oil spills on land or water involves heating in a mixture of petroleum wax and vegetable oil to remove moisture content and open the pores of the wood chip to allow the oil/wax blend to penetrate into the interior of the wood chips and subsequently grinding up the chips to a predetermined mesh size. The ground chips impregnated with wax/oil are then blended with magnetic iron ore concentrate and packaged/bagged for later distribution on an oil slick. The magnetic iron ore concentrate clings to the ground, oil/wax coated wood chips and facilitates retrieving the ground chips that have absorbed the spilled oil using a magnetic pick-up.

To provide a PTP blister sheet exhibiting a high adsorption effect over prolonged periods, and a PTP blister pack formed from it. A PTP blister sheet having at least a gas barrier layer and an odor adsorption layer, wherein the odor adsorption layer comprises a heat-sealable resin containing an odor adsorption agent, and the odor adsorption agent is formed by a chemical adsorption agent supported on an inorganic porous body, and a PTP blister pack formed from it.

A sparsely pillared organic-inorganic hybrid compound is provided. The sparsely pillared organic-inorganic hybrid compound includes: two inorganic material layers, each extending in one direction and facing each other; and an organic material layer disposed between the two inorganic material layers, wherein each of the inorganic material layers has a gibbsite structure in which a divalent metal cation is doped to an octahedral site, and the organic material layer includes a plurality of pillar portions, each of which is chemically bound to each of the two inorganic material layers such that the two inorganic material layers are connected to each other.