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.

In various embodiments, the present disclosure pertains to organic polymer core-shell particles that comprise a non-porous organic polymer core (i.e., having a pore volume of less than 0.1 cc/g) and a porous organic polymer shell (i.e., having a pore volume of greater than 0.1 cc/g), in which the porous organic polymer shell has a pore size ranging from 100 Å to 3000 Å. In some embodiments, the present disclosure pertains to chromatographic separation devices that comprise such organic polymer core-shell particles. In some embodiments, the present disclosure pertains to chromatographic methods that comprise: (a) loading a sample onto a chromatographic column comprising such organic polymer core-shell particles and (b) flowing a mobile phase through the column.

A solid fiber is described, where the solid fiber is characterized by (a) a modification degree Do/Di, in a cross section of the solid fiber of 1.20 to 8.50 where the inscribed circle diameter is denoted by Di and the circumscribed circle diameter is denoted by Do; and (b) a porous specific surface area of not less than 30 m.sup.2/g.

The hydrogen storage product comprises one or more reduced-graphene oxide layers functionalized with a boron species and decorated with an alkali or alkaline earth metal. Each layer of the structure further comprises boron-oxygen functional groups comprising oxygen atoms bonded to boron atoms. The hydrogen storage product has a composition suitable for physisorption of hydrogen molecule, and operates to reversibly store hydrogen under operating conditions of low pressure and ambient temperature.

Superabsorbent particles have a median size of from about 50 to about 2,000 micrometers and contain a porous network that includes a plurality of nanopores having an average cross-sectional dimension of from about 10 to about 500 nanometers, wherein the superabsorbent particles exhibit a Vortex Time of about 80 seconds or less and a free swell gel bed permeability (GBP) of 5 darcys or more, of 10 darcys or more, of 20 darcys or more, of 30 darcys or more, of 60 darcys or more, or of 90 darcys or more. A method for forming such superabsorbent particles includes forming a composition that contains a superabsorbent polymer and a solvent system; contacting the composition with a non-solvent system to initiate formation of the porous network through phase inversion; removing non-solvent from the composition; and surface crosslinking the superabsorbent particles.

The present invention relates to a preparation method of La(OH).sub.3 nanorod/walnut shell biochar composite material (LN-WB), comprising the following steps: putting walnut shell powder into a crucible and pyrolyzing and carbonizing in a muffle furnace at 350° C. to 450° C.; after the pyrolysis is completed, grinding and sieving the obtained biochar, and then repeatedly washing with deionized water; drying the washed biochar for later use; putting an appropriate amount of biochar into the deionized water to form a turbid solution; simultaneously dropwise adding LaCl.sub.3 and NaOH to the above turbid solution by using a peristaltic pump; and allowing the obtained mixture to stand at room temperature for 20 to 30 h, washing and drying for later use. The present invention successfully prepares a La(OH).sub.3 nanoparticle-loaded biochar composite material through a simple synthesis technology.

The present disclosure provides for a porous gas sorbent monolith with superior gravimetric working capacity and volumetric capacity, a gas storage system including a porous gas sorbent monolith of the present disclosure, methods of making the same, and method for storing a gas. The porous gas sorbent monolith includes a gas adsorbing material and a non-aqueous binder.

A method of removing one or more antibiotics from a dairy product, the method involve passing the dairy product comprising an antibiotic in a first amount through a bulk comprising, relative to a total bulk weight, at least 75 wt. % of titanium oxide nanostructures, to provide the dairy product comprising the antibiotic in a second, lesser amount, wherein the nanostructures have lengths at least two-fold in excess of their width and height. Bulk materials useful in this or related methods or applications may have loosely tangled, noodle-like morphologies on sub-100 nm scale, and need not employ graphene and/or polymeric support networks in columns, generally having only titanium oxides without silicon or iron oxides.

A process for the efficient transfer of molecules between phases employing mesoporous poly (aryl ether ketone) hollow fiber membranes is provided. The method addresses the controlled transfer of reactants into and removal of reaction products from a reaction media and the removal and separation of target molecules from process streams by membrane-assisted liquid-liquid extraction. A number of possible modes of liquid-liquid extraction are possible according to the invention by utilizing porous poly (aryl ether ketone) hollow fiber membranes of Janus-like structure that exhibit a combination of hydrophilic and hydrophobic surface characteristics. The method of the present invention can address the continuous manufacture of chemicals in membrane reactors and is useful for a broad range of separation applications, including separation and recovery of active pharmaceutical ingredients.

A composition of matter having a porous cross-linked polymer network, quaternary ammonium ions in the cross-linked polymer network, and at least one counter ion in the cross-linked polymer network that is at least one of hydroxide or a counter ion capable of forming hydroxide upon reaction with water. A method to produce a porous material includes polymerizing a compound containing quaternary ammonium and a cross-linker using controlled polymerization and ion exchange in the presence of at least one of hydroxide or a counter ion capable of forming hydroxide upon reaction with water. A method to capture CO.sub.2, includes employing a sorbent comprising a quaternary ammonium ions in a porous cross-linked polymer network in an environment to adsorb CO.sub.2.