The invention is directed to a nanostructured composite material comprising a mixture of at least one metal particle such as iron and a carbon material from biomass such as D-glucose, D-glucosamine hydrochloride or a-cyclodextrin. The invention is also directed to a composition comprising the composite material comprising the composite material and an inorganic salt, and a method for synthesizing the composite material comprising immersing the carbon material into a solution of metal ions, drying the impregnated carbon particle and subjecting the impregnated carbon particle to a carbothermal reduction process. The nanostructured composite material is useful as an oxygen scavenging layer in a multi-layer film which comprises the oxygen scavenging layer and an oxygen barrier layer that retards the permeation of oxygen from an external environment.

This invention relates to a continuous process for the preparation of a metal-organic framework comprising a hydrophobic compound. The process comprises the steps of: (a) providing a first component comprising either (i) a metal-organic framework, or (ii) a first reactant which includes at least one metal in ionic form and a second reactant which includes at least one ligand capable of associating with the metal in ionic form in order to form a metal-organic framework, (b) providing a hydrophobic compound, and (c) mixing the first component and the hydrophobic compound in order to form the metal-organic framework comprising the hydrophobic compound. The invention also relates to the use of a hydrophobic polymer, a silane compound and/or a siloxane compound to improve the water stability of a metal-organic framework.

The present invention provides a column filler for liquid chromatography that has a great adsorption capacity, adjustable adsorption selectivity, and high shape retainability and therefore is usable for measurement of various substances and capable of achieving excellent separation performance and a high filling rate in a column when used as a column filler for liquid chromatography. Provided is a column filler for liquid chromatography including carbon-coated porous particles, the carbon-coated porous particles including porous particles each having a coating layer containing an amorphous carbon on a surface.

There is provided an activated carbon having a high total trihalomethane filtration capacity, even in water treatment by passing water at a high superficial velocity (SV). In the activated carbon of the present invention, a pore volume A of pores with a size of 1.0 nm or less, of pore volumes calculated by the QSDFT method, is 0.3 cc/g or more, and a pore volume B of pores with a size of 3.0 nm or more and 3.5 nm or less, of pore volumes calculated by the QSDFT method, is 0.009 cc/g or more.

Methods of preparing organosilica materials using a starting material mixture comprising at least one compound of Formula [(RO).sub.2SiCH.sub.2].sub.3 (Ia) and at least one compound of Formula [R′ROSiCH.sub.2].sub.3 (Ib), wherein each R′ independently represents an RO—, an R group, or an (RO).sub.3Si—CH.sub.2— group, at least one R′ being (RO).sub.3Si—CH.sub.2—; and R represents a C.sub.1-C.sub.4 alkyl group, in the absence of a structure directing agent and/or porogen are provided herein. Processes of using the organosilica materials, e.g., for gas separation, etc., are also provided herein.

In one aspect, the present invention provides a chromatographic stationary phase material for various different modes of chromatography represented by Formula 1: [X](W).sub.a(Q).sub.b(T).sub.c (Formula 1). X can be a high purity chromatographic core composition having a surface comprising a silica core material, metal oxide core material, an inorganic-organic hybrid material or a group of block copolymers thereof. W can be absent and/or can include hydrogen and/or can include a hydroxyl on the surface of X. Q can be a functional group that minimizes retention variation over time (drift) under chromatographic conditions utilizing low water concentrations. T can include one or more hydrophilic, polar, ionizable, and/or charged functional groups that chromatographically interact with the analyte. Additionally, b and c can be positive numbers, with the ratio 0.05≤(b/c)≤100, and a≥0.

Process for further use of a water-containing carbon raw material comprising the treatment of the carbon raw material with carbon dioxide or water vapor or a mixture thereof at elevated temperature and the admixing of the thus obtained carbon material with an acid.

To provide a porous silica which is capable of effectively eliminating odors of methyl mercaptan, hydrogen sulfide, nonenal and the like, said odors being difficult to be eliminated by a silica porous material that contains no metal. A porous silica containing particles that are provided with primary pores, wherein the particles contain a metal containing substance complex having a particle size of 1-100 nm. This porous silica has a specific surface area of 500 m.sup.2/g or more.

The present invention relates to a carbon sorbent the can selectively remove platinum-group metals and other heavy metals such as tin without co-removing organic synthesis products including pharmaceutical intermediates and finished Active Pharmaceutical Ingredients (APIs). The carbon sorbents of the present invention are made from low-cost, high purity starting materials and the resulting carbon sorbents are also very pure. The carbon sorbents possess a combination of certain nitrogen and phosphorous groups combined with mesoporosity (2 to 50 nm diameter pores) that proves the high metal adsorption.

A first process and sorbent for removing ammonia from a gaseous environment, the sorbent comprised of graphene oxide having supported thereon at least one compound selected from metal salts, metal oxides and acids, each of which is capable of adsorbing ammonia. A second process and sorbent system for removing ammonia and a volatile organic compound from a gaseous environment; the sorbent system comprised of two graphene-based materials: (a) the aforementioned graphene oxide, and (b) a nitrogen and oxygen-functionalized graphene. The sorbents are regenerable under a pressure gradient with little or no application of heat. The processes are operable through multiple adsorption-desorption cycles and are applicable to purifying and revitalizing air contaminated with ammonia and organic compounds as may be found in spacesuits, aerospace cabins, underwater vehicles, and other confined-entry environments.