An inorganic material in a form of open-porosity particles, each of the particles comprising a lead vanadate or phosphovanadate of formula Pb.sub.3-xX.sub.x(VO.sub.4)2.sub.-2y(PO.sub.4)2.sub.y,wherein x = 0 or x > 0 but ≤ 0.33; y = 0 or y > 0 but < 1;X = Ba.sup.2+, Ca.sup.2+, Sr.sup.2+ or Cd.sup.2+; and metallic lead or a lead salt. A method for preparing the material, a method for capturing iodine present in a gaseous effluent as well as a method for conditioning iodine present in a gaseous effluent in a form of an iodoapatite.

Superabsorbent polymers are made of copolymers including a major portion of low molecular weight monomers each individually including a backbone and a charged moiety, a minor portion of high molecular weight monomers each individually including a backbone and a charged moiety, and optionally a crosslinker. The copolymer-based superabsorbent polymers have significantly improved absorbency under load.

An adsorbent that includes a particle of a layered material that contains one or a plurality of layers; and contains Li. The one or plural layers includes a layer body represented by: M.sub.mX.sub.n where, M represents at least one Group-3, -4, -5, -6, or -7 metal, X represents a carbon atom, a nitrogen atom, or a combination thereof, n is 1 to 4, and m is larger than n, and equal to or less than 5; and a modified/terminal part T resides on a surface of the layer body, T represents at least one selected from the group consisting of hydroxy group, fluorine atom, chlorine atom, oxygen atom, and hydrogen atom, the modified/terminal part T residing on a surface of the layer body, the particle has an average thickness of 1 nm to 10 nm, and the adsorbent has a Li content of 0.0001% by mass to 0.0020% by mass.

A device containing glass beads functionalized with polyethyleneimine which is adsorbed on the surface of the glass beads, and the use thereof for capturing microorganisms for implementing a method for removing microorganisms or for diagnosing. The microorganisms can be chosen in particular from bacteria and Fungi, in particular yeasts and fungi.

The present disclosure relates to water purification compositions and the method of producing the same. Specifically, the present disclosure relates to a method of producing a water purification composition including providing a substrate having one or more functional groups that has hydroxyl, thiol, carboxyl, and/or amino group; depositing a solution of a metal salt on the substrate; depositing a solution of carboxylic acid compound on the substrate; forming a mixture wherein the metal cross-links the hydroxyl, thiol, carboxyl and/or amino groups on the surface of the substrate, and the carboxylic acid compound; and heating the mixture till the product is dry.

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.

The present invention relates to a radionuclide adsorbent, which includes a hollow space (specifically, an area which is entirely empty or in which transition metal oxide particles are present); and a transition metal-ferrocyanide shell (specifically, a transition metal-ferrocyanide shell having a structure in which a plurality of two-dimensional nano flakes overlap or a transition metal-ferrocyanide shell having a structure in which a plurality of three-dimensional nano polyhedrons agglomerate) formed on the space surface, a preparation method thereof, and a method of removing a radionuclide using the same.

The present invention relates to an average-density-adjustable structure and more specifically provides a structure the average density of which is adjusted by changing the material of the structure and the size of a void formed therein and which can thereby float on the surface of or in a liquid and can easily bond with or change a material present in a gas or liquid by being equipped with a first material, which is one among an organic catalyst, an inorganic catalyst, a microorganism, and a biomolecule.

Contaminate-sequestering coatings including a network of hydrolyzed silane compounds including a plurality of thiol functional groups, a plurality of fluorinated functionalities, or both are provided. The contaminate-sequestering coatings may sequester one or more per- and polyfluoroalkyl substances (PFAS), heavy metals, biological species or any combination thereof. Methods of functionalizing a substrate surface with contaminate-sequestering functionalities that sequester one or more PFAS, heavy metals, or both are also provided. Methods of removing contaminants from contaminate-containing liquids, and devices including the contaminate-sequestering coatings are also provided.

The present invention relates to a hydrocarbon adsorbent with metal-impregnated zeolite particles having regular mesopores and a manufacturing method therefor. The hydrocarbon adsorbent includes a metal cation and a metal oxide that are impregnated in zeolite particles, in particular, the zeolite particles include regularly formed mesopores having a size of 2 to 10. By adjusting a Si/Al ratio and mesoporosity of the mesopores, a hydrocarbon adsorbent may have increased adsorption capacity for hydrocarbons in a cold-start section and can rapidly oxidize the hydrocarbon upon desorption thereof, thereby reducing the discharge of exhaust gas produced in automobiles and industries.