A polymer that contains, in a molecular chain constituting a main chain, a skeleton derived from a dehydroabietic acid compound, an adsorbent that contains the polymer, and an adsorption apparatus that has the adsorbent.

Embodiments of the disclosed subject matter include a litter scoop that will work with a pelleted cat litters made from various substances such as wood shavings, bamboo, paper, coir, etc.

A porous porphyrin polymer and a method of recovering precious metal elements using the same are described. A porous porphyrin polymer represented by Formula 1 has high selectivity for precious metal elements and a high ability to adsorb precious metal elements, and can be applied to the recovery of precious metal elements either from metal leachates of waste electronic products or from river water or seawater.

The compositions and methods that can be used in desiccants in manufactured units requiring an enclosed atmosphere with minimal water and volatile content. Such materials need to maintain a low concentration of volatile materials in an enclosed space in a unit to avoid any unneeded interference of water or other volatiles in the utility of the unit. In one application, the desiccant material can keep the insulated glass units (IGUs) from fogging, which includes forming water or depositing volatiles on internal surfaces.

The present invention relates to the field of solid-phase extraction, and particularly to a solid-phase extraction material, and a preparation method and use thereof. The preparation method includes prepolymerizing the monomers N-vinylpyrrolidone and divinylbenzene in the presence of a chain transfer agent, adding prepolymer dropwise to an emulsion of monodispersed seed microspheres, swelling, and reacting to prepare white spheres; and functionalizing the white spheres, to obtain the solid-phase extraction material. The solid-phase extraction material prepared by the reaction has good spherical morphology, large specific surface area, and high ion exchange capacity. The prepared solid-phase extraction material functions in the separation and enrichment of PPCPs by means of a variety of forces with a high extraction rate. The extraction rate is basically maintained between 85% and 105%, and acidic, alkaline, neutral and amphoteric substances is capable of being selectively separated.

The present invention relates to metal-organic gels and metal-organic aerogels made of dithiooxamidate (DTO) or rubeanate ligand-based coordination polymers, method for preparing thereof and use in chemical species capture, separation and/or catalysis, environmental cleanup, metal recovery, passive sampling, among others.

An aerogel for harvesting atmospheric water is provided. More specifically, there is provided a polymer-metal organic framework mixed-matrix aerogel comprising a polymer cross-linked with a metal organic framework, wherein the aerogel is capable of continuous sorption-desorption of atmospheric water. There is also provided a method of forming the aerogel.

A porous particle has a controlled 3D network skeleton and communicating pores that include the voids of the skeleton and penetrate from the particle surface to the inside, a method produces the same, and a filler for chromatography uses the same. The porous particle mainly includes cellulose acetate or cellulose, is spherical, and has a 3D network skeleton and communicating pores that include the voids of the skeleton and penetrate from the particle surface to the inside. The retention time of dextran with a molecular weight of 2 million at a flow rate of 0.4 ml/min in a column with an inner diameter of 0.78 cm and a length of 30 cm filled with the porous particles is 20 minutes or more.

A water absorption treatment material includes a core portion and a coating portion. The core portion is approximately circular column-shaped and has a side surface, a first bottom surface, and a second bottom surface. The coating portion is provided so as to cover the core portion. A region of 80% or more of the side surface of the core portion is covered by the coating portion. A region of 80% or more of the first bottom surface of the core portion is exposed without being covered by the coating portion.

A sorbent composition for the removal of boron and/or borates from a fluid such as an aqueous medium. The sorbent composition includes a base sorbent material having a high porosity and surface area, and a boron-selective agent. By using a boron-selective agent in conjunction with a high surface area base sorbent material such as activated carbon or biochar, a sorbent composition with a high capacity for sequestering boron and a relatively low cost is provided. The sorbent compositions are particularly useful for the sequestration of boron from waste materials such as coal combustion residual leachate (CCRs).