A variety of superhyrdophobic porous materials are provided including a covalent organic framework having a plurality of perfluoroalkyl or perfluorheteroalkyl moieties covalently attached thereto. The materials can include a polymeric foam matrix made of a three-dimensional network of polymer fibers, and the covalent organic framework can be made encasing at least a portion of the polymer fibers. The covalent organic framework can be intertwined within the polymeric foam matrix such that the covalent organic framework encasing the portion of the polymer fibers is stable to mechanical compression of the polymeric foam matrix. Surfaces and other articles are provided including the superhyrdophobic porous materials are also provided, as are methods of making the superhyrdophobic porous materials, and methods of use for oil recovery among other things.

The present disclosure provides a multilayer article. The multilayer article includes a) a microfiltration membrane substrate; b) a first layer directly attached to the first major surface of the microfiltration membrane substrate; and c) a second layer directly attached to the first layer. The first layer includes a first polymeric binder and acid-sintered interconnected first silica nanoparticles arranged to form a continuous three-dimensional porous network. The second layer includes acid-sintered interconnected second silica nanoparticles arranged to form a continuous three-dimensional porous network. The present disclosure also provides a method for forming a multilayer article. The method includes (a) saturating a microfiltration membrane substrate with a liquid; (b) applying a first aqueous coating formulation to at least a portion of a first major surface of the microfiltration membrane substrate to form a coated substrate; (c) sintering the coated substrate, thereby forming a first layer; (d) applying a second aqueous coating formulation to the first major surface of the first layer to form a twice-coated substrate; and (e) sintering the twice-coated substrate.

A process for separations and recovery from mixtures via specific adsorption using high-surface area, flexible silica-based nanostructured gel adsorbents and articles of manufacture relating to same.

A method of binding a target metal in solution. The method of binding a target metal comprises contacting a solution containing i) a target metal with ii) an encapsulated exudate of a culture of algal flagellate, or a fraction thereof; or an encapsulated dried Euglena biomass or a fraction thereof, to form a complex between the target metal, and the encapsulated exudate or fraction thereof, or the encapsulated dried Euglena biomass or the fraction thereof; and optionally separating the complex from the solution. The disclosure also relates to a biosorbent element, as well as methods of using same in binding a metal in solution.

A porous chiral material of formula [M(L).sub.1.5(A)].sup.+X.sup. wherein M is a metal ion; L is a nitrogen-containing bidentate ligand; A is the anion of mandelic acid or a related acid; and X.sup. is an anion

The present disclosure provides a multilayer article. The multilayer article includes a) a microfiltration membrane substrate, the microfiltration membrane substrate having a first major surface; and b) a first layer having a first major surface and a second major surface disposed opposite the first major surface. The first major surface of the first layer is directly attached to the first major surface of the microfiltration membrane substrate. The first layer includes a first polymeric binder and a plurality of acid-sintered interconnected first silica nanoparticles arranged to form a continuous three-dimensional porous network. The multilayer article further includes c) a second layer attached to the second major surface of the first layer. The second layer includes i) a metal coating or ii) a composite coating comprising a second polymeric binder and at least one of metal nanoparticles or metal nanowires.

A method for manufacturing a water absorption treatment material made of a plurality of grains includes a preparing step, a pulverizing step, a core portion forming step, and a coating portion forming step. The preparing step is a step of preparing a paper powder to which water-absorbent polymers adhere, the paper powder being derived from a sanitary product. The pulverizing step is a step of pulverizing remaining polymers using a pulverizer. The core portion forming step is a step of forming a core portion constituting each of the grains The coating portion forming step is a step of forming a coating portion so as to cover the core portion, the coating portion containing the paper powder, and the remaining polymers pulverized in the pulverizing step. In the pulverizing step, the remaining polymers left in a state of adhering to the paper powder are subjected to the pulverizer.

The present invention is directed to a method for performing size exclusion chromatography. Embodiments of the present invention feature devices and methods for improving the speed and separations of size exclusion chromatography using a stationary phase material comprising small particles (<2 micron in diameter).

A chromatographic media for separating bio-polymers, the chromatographic media having cationic exchange properties and anionic exchange properties, the chromatographic media comprising: (a) non-porous substrate particles including an organic polymer, the substrate particles having a neutral hydrophilic layer at a surface of the non-porous substrate particles, in which the neutral hydrophilic layer is configured to reduce a binding of the bio-polymers directly to the non-porous substrate particles compared to a binding of the bio-polymer to the non-porous substrate particles without the neutral hydrophilic layer; (b) a charged first ion exchange layer bound to the substrate particles on top of the hydrophilic layer, the first ion exchange layer comprising first ion exchange groups; and (c) a charged second ion exchange layer bound to the substrate particles on top of the first ion exchange layer.

The present disclosure provides novel solid sorbents synthesized by the reaction of polyamines with polyaldehyde phosphorous dendrimer (P-dendrimer) compounds. The sorbents are highly stable and exhibit rapid reaction kinetics with carbon dioxide, making the sorbents applicable for carbon capture, and can be easily regenerated for further use. The material is stable to aqueous and organic media, as well as strong acid and bases. The sorbent maintains full capacity over extended use. The material can be used for CO.sub.2 capture from pure CO.sub.2 streams, mixed gas streams, simulated flue gas, and ambient air. Additionally, the material can be adhered to surfaces for reversible CO.sub.2 capture applications outside of bulk particle-based processes.