According to the method and device for a membrane-based processing of ambient water-group species, the species are captured in a space environment by an ionic liquid disposed on a presenting face of a semipermeable membrane. To seamlessly process the captured species for in-situ resource utilization without need of moving parts, they are urged to pass through the membrane by a predetermined electric potential difference applied between opposite sides of the membrane via electrode contacts; an initial storage envelope is provided by an impermeable membrane attached to a back face of the semipermeable membrane. The device can be stowed in a manner of rolled plastic and deployed by unrolling. The device can also be configured as a scientific instrument to monitor a flux of ambient water-group species impinging in the space environment using electrical measurements.

According to the method and device for a membrane-based processing of ambient water-group species, the species are captured in a space environment by an ionic liquid disposed on a presenting face of a semipermeable membrane. To seamlessly process the captured species for in-situ resource utilization without need of moving parts, they are urged to pass through the membrane by a predetermined electric potential difference applied between opposite sides of the membrane via electrode contacts; an initial storage envelope is provided by an impermeable membrane attached to a back face of the semipermeable membrane. The device can be stowed in a manner of rolled plastic and deployed by unrolling. The device can also be configured as a scientific instrument to monitor a flux of ambient water-group species impinging in the space environment using electrical measurements.

Disclosed is a PLGlu-SS-lithium ion-sieve composite, preparation method and use thereof. The PLGlu-SS-lithium ion-sieve composite includes an H.sub.3LiMnTi.sub.4O.sub.12 lithium ion-sieve and poly--glutamic acid (-PGA) compounded with the H.sub.3LiMnTi.sub.4O.sub.12 lithium ion-sieve, where a terminal amino group of the -PGA is linked to a disulfide bond-containing group. In the present disclosure, the H.sub.3LiMnTi.sub.4O.sub.12 lithium ion-sieve is used as a support structure with sufficient strength support, high structural stability, and excellent cycling performance; the pores and surface of the H.sub.3LiMnTi.sub.4O.sub.12 lithium ion-sieve both are bonded with PLGlu-SS. At a low pH, PLGlu-SS is protonated and folded to form-helix, and at a high pH, PLGlu-SS is deprotonated and extended. Thus, under alkaline adsorption and acidic desorption, a pore size of the composite can be adjusted to provide large adsorption capacity, high adsorption selectivity, and high adsorption efficiency. Therefore, the composite is an efficient lithium ion adsorption material with high adsorption capacity and high stability.

Disclosed is a PLGlu-SS-lithium ion-sieve composite, preparation method and use thereof. The PLGlu-SS-lithium ion-sieve composite includes an H.sub.3LiMnTi.sub.4O.sub.12 lithium ion-sieve and poly--glutamic acid (-PGA) compounded with the H.sub.3LiMnTi.sub.4O.sub.12 lithium ion-sieve, where a terminal amino group of the -PGA is linked to a disulfide bond-containing group. In the present disclosure, the H.sub.3LiMnTi.sub.4O.sub.12 lithium ion-sieve is used as a support structure with sufficient strength support, high structural stability, and excellent cycling performance; the pores and surface of the H.sub.3LiMnTi.sub.4O.sub.12 lithium ion-sieve both are bonded with PLGlu-SS. At a low pH, PLGlu-SS is protonated and folded to form-helix, and at a high pH, PLGlu-SS is deprotonated and extended. Thus, under alkaline adsorption and acidic desorption, a pore size of the composite can be adjusted to provide large adsorption capacity, high adsorption selectivity, and high adsorption efficiency. Therefore, the composite is an efficient lithium ion adsorption material with high adsorption capacity and high stability.

The present invention relates to the extraction of lithium from liquid resources, such as natural and synthetic brines, leachate solutions from clays and minerals, and recycled products.

The present invention relates to the extraction of lithium from liquid resources, such as natural and synthetic brines, leachate solutions from clays and minerals, and recycled products.

A material in the form of an alveolar monolith consisting of a matrix of an inorganic oxide with a hierarchical and opened porosity comprising macropores, mesopores and micropores, said macropores, mesopores and micropores being interconnected, and nanoparticles of at least one metal cation exchange inorganic solid material being distributed in said porosity. A method for preparing this material and a method for separating a metal cation notably a cation of a radioactive isotope of a metal such as cesium using this material.

A material in the form of an alveolar monolith consisting of a matrix of an inorganic oxide with a hierarchical and opened porosity comprising macropores, mesopores and micropores, said macropores, mesopores and micropores being interconnected, and nanoparticles of at least one metal cation exchange inorganic solid material being distributed in said porosity. A method for preparing this material and a method for separating a metal cation notably a cation of a radioactive isotope of a metal such as cesium using this material.

Provided is a particulate alkaline earth metal ion adsorbent having a large adsorption capacity. The particulate alkaline earth metal ion adsorbent comprising: a potassium hydrogen dititanate hydrate represented by a chemical formula K.sub.2-xH.sub.xO.2TiO.sub.2.nH.sub.2O, wherein x is 0.5 or more and 1.3 or less, and n is greater than 0; and no binder, wherein the particulate alkaline earth metal ion adsorbent has a particle size range of 150 m or more and 1000 m or less.

A sorbent based monitoring system for measuring the solute concentration of at least one component of a fluid. The system has a sorbent regeneration system for regeneration of the fluid and has a sorbent cartridge that has at least one material layer. The fluid is conveyed through the sorbent cartridge and contacts at least one sensor after having contacted at least one material layer.