Animal litter comprising composite particles including powdered sodium bentonite and powdered activated carbon, agglomerated together into the composite particles, wherein the animal litter has a particle size distribution of 16/50 mesh (i.e., 300 m to 1180 m in size). The litter may include non-composite, granular clay particles (e.g., granular sodium bentonite) having the same particle size distribution (16/50 mesh). Such particle size characteristics significantly reduce dusting, without the need for a de-dusting agent, reduce clump depth and/or reduce clump width at the bottom of the clump (both acting to reduce risk of clumps sticking to the bottom of the litter box) and result in more efficient use of the litter in clumping (reduced clump weight) by increasing absorbency.

The invention relates to a process for producing superabsorbent polymer particles, comprising polymerization of a monomer solution, drying the formed polymer gel, grinding the dried polymer gel, classifying and thermally surface post-crosslinking the polymer particles, wherein the monomer solution comprises a chelating agent and an aluminum salt.

The present disclosure relates to a method for preparing a super absorbent polymer. More specifically, it relates to a method for preparing a super absorbent polymer capable of improving drying efficiency, reducing a generation amount of re-fines, and simultaneously improving absorption performance, in particular, absorption under pressure and permeability of the finally prepared super absorbent polymer by controlling granulation strength of the extruded fine reassembly.

A selective metamaterial absorber and method for fabricating the same is disclosed. The method includes deposing a first metal layer on a first surface of a substrate and on a plurality of nanowires extending outward from the first surface of the substrate, the plurality of nanowires forming an array on the first surface, the substrate further including a second surface opposite the first surface. The first metal layer may be deposed using conformally sputtering. The substrate and the plurality of nanowires may be composed of silicon, and the first metal layer may be composed of tungsten. The first metal layer may be composed of a material having a penetration depth for a wavelength range of interest. The first metal layer may be at least three times thicker than the penetration depth.

In one aspect, a functionalized porous material includes a synthetic porous material, the synthetic porous material comprising a surface, wherein at least a portion of the synthetic porous material surface is a substrate; and a mixed-metal hydroxide, wherein the mixed-metal hydroxide is affixed to the substrate.