A process for recovery of lithium ions from a lithium-bearing brine includes contacting the lithium-bearing brine with a lithium ion sieve (where that LIS includes an oxide of titanium or niobium) in a first stirred reactor to form a lithium ion complex with the lithium ion sieve, and decomplexing the lithium ion from the lithium ion sieve in a second stirred reactor to form the lithium ion sieve and an acidic lithium salt eluate.

The present invention provides a composition that includes a silicotitanate that has a sitinakite structure, the composition having higher cesium adsorptivity than conventional compositions. The present invention also provides a production method for the composition that includes a silicotitanate that has a sitinakite structure. The production method does not require the use of hazardous or deleterious materials, can generate a product using a compound that is easily acquired, and can use a general-purpose autoclave. Also provided is a silicotitanate composition that has higher strontium adsorptivity than the present invention. Provided is a silicotitanate composition that contains niobium and a silicotitanate that has a sitinakite structure, the composition having at least two or more diffraction peaks selected from the group consisting of 2θ=8.8°±0.5°, 2θ=10.0°±0.5°, and 2θ=29.6°±0.5°.

The gas adsorbent of one aspect according to the present invention includes is included in the glass panel unit. The gas adsorbent includes: a substrate made of fiber or a porous substance, of inorganic material; and a liquid containing a getter attached to the substrate.

A material for moisture removal and/or water harvesting from air may include a hydrophilic material containing micropores and a low water activity material confined within the micropores of the hydrophilic material. Apparatuses containing such materials and methods for moisture removal and/or water harvesting from air by using such materials are also described.

The present disclosure is directed to methods for scrubbing low levels of urea from aqueous solutions such as a dialysate from dialysis, and including blood and blood products, and devices capable of employing these methods.

The present disclosure is directed to methods for scrubbing low levels of urea from aqueous solutions such as a dialysate from dialysis, and including blood and blood products, and devices capable of employing these methods.

Disclosed are a transition metal-doped carbon microsphere, a preparation method therefor and an application thereof. The transition metal-doped carbon sphere has a uniform solid porous structure, and the transition metal is uniformly distributed inside the carbon sphere. The preparation method comprises that a carbon microsphere uniformly doped with manganese, vanadium, molybdenum and tungsten is prepared by means of a one-step hydrothermal method, is mixed with potassium oxalate, and is roasted in a protective atmosphere to obtain an activated metal-doped carbon sphere. The doped transition metal elements remain uniformly dispersed after being roasted, and do not agglomerate. The transition metal-doped carbon microsphere obtained has the following characteristics: it exhibits good adsorption properties for heavy metal ions Cr(VI), with the maximum adsorption amount being 660.7 mg/g; it can achieve advanced removal of Cr(VI) from the wastewater of which the initial Cr(VI) concentration is lower than 200 mg/L, with the residual Cr(VI) concentration after adsorption being lower than 0.05 mg/L; and it shows good application prospect in the treatment of wastewater containing heavy metal.

Multi-functional materials for use in reversible, high-capacity hydrogen separation and/or storage are described. Also described are systems incorporating the materials. The multi-functional materials combine a hydrogen-absorbing material with a high-efficiency and a non-contact energy-absorbing material in a composite nanoparticle. The non-contact energy-absorbing material include magnetic and/or plasmonic materials. The magnetic or plasmonic materials of the composite nanoparticles can provide localized heating to promote release of hydrogen from the hydrogen storage component of the composite nanoparticles.

The present disclosure is directed to methods for scrubbing low levels of urea from aqueous solutions such as a dialysate from dialysis, and including blood and blood products, and devices capable of employing these methods.

A method of removing an organic pollutant from water by contacting the water with a ball milled and sonicated oil fly ash powder to adsorb the organic pollutant onto the ball milled and sonicated oil fly ash powder. A method of producing a ball milled and sonicated oil fly ash powder involving ball milling oil fly ash to provide ball milled oil fly ash particles with an average particle size of less than 1 μm and sonicating the ball milled oil fly ash particles in an aqueous medium to form the ball milled and sonicated oil fly ash powder. A method of improving recovery of valuable metals/elements from oil fly ash.