The present invention provides an ultrafiltration membrane comprising a sulfone polymer membrane matrix with pores and an organic polymer sealing layer, wherein the pores are filled with nanoadsorbents. The present invention further provides a method for preparing the ultrafiltration membrane, which includes the following steps: (1) synthesizing nanoadsorbents; (2) preparing the sulfone polymer membrane matrix by immersion-precipitation phase inversion; and (3) immobilizing nanoadsorbents in the pores of the sulfone polymer membrane matrix by reverse filling, then sealing the pores with organic polymers to form a multifunctional ultrafiltration membrane. In the present invention, colloidal gold, polyethylene glycol molecules and Pb(II) ions (and so forth) are utilized as models of viruses, macromolecular organic pollutants, and small molecular pollutants, respectively. It is shown that the multifunctional ultrafiltration membrane allows for removal of multiple pollutants from water and can simultaneously remove multiple pollutants under low pressure.

The invention relates to a monolithic porous material made of amorphous silica or activated alumina, comprising substantially rectilinear capillary channels that are parallel to one another, wherein: the channels have a substantially uniform cross-section relative to each other, the cross-section of each channel is regular over its entire length, the channels pass through the material from end to end, the length of the channels is equal to or more than 10 mm. The invention also relates to an annular, radial or axial chromatographic apparatus, the packing of which consists of at least one said monolithic material. The invention also relates to processes for manufacturing such a monolithic material.

The present invention relates to a method to improve chromatography beads. More closely, the invention relates to a novel method for production of dextran-containing porous media and chromatography media produced with this method. In the method, the chromatography media is subjected to dextranase-treatment leading to improved pressure-flow properties of the media.

Methods for making graphene-biopolymer composite materials are described. The methods can comprise contacting an ionic liquid with a biopolymer and graphene, thereby forming a mixture; contacting the mixture with a non-solvent, thereby forming the graphene-biopolymer composite material in the non-solvent; and collecting the graphene-biopolymer composite material from the non-solvent.

The invention relates to a method for producing a multi-capillary lining comprising a plurality of channels suitable for convection of a fluid between an inlet face and an outlet face of said lining, said method comprising the steps of: providing at least one preform (1) suitable for forming, after ablation, a capillary channel (3) of the lining; assembling said preforms into a bundle; coating each preform (1) with a plurality of porous layers (2) by depositing alternating layers of a polyelectrolyte and nanoparticles or colloidal nanoparticles or by depositing alternating layers of said nanoparticles and a polymer glue; bonding the coated preforms to form a porous monolith; andablating the preforms to form the channels in said porous monolith.

A biomass-based porous carbon composite material and preparation thereof and an application thereof in CO.sub.2 adsorption are provided. In the biomass-based porous carbon composite material, with a pulping black liquid solid as a precursor, by arc treatment, porous carbon structures capable of physically adsorbing CO.sub.2 and basic substances capable of chemically adsorbing CO.sub.2 are obtained; with lignin in the precursor as the carbon source, and sodium hydroxide, sodium salts, and small-molecular carbohydrate degradation products in the precursor as the template and activator, porous carbon structures are obtained by arc thermal carbonization and self-activation; the basic substances are obtained by allowing sodium hydroxide and sodium salts in the precursor to undergo arc thermal decomposition. Further, the present disclosure relates to an application of the biomass-based porous carbon composite material in CO.sub.2 adsorption.

The present invention relates to a zeolite adsorbent having an external surface area of between 20 m.sup.2.Math.g.sup.1 and 70 m.sup.2.Math.g.sup.1, a mesopore volume (V.sub.meso) of less than or equal to 0.20 cm.sup.3.Math.g.sup.1, and a content of non-zeolite phase (NZP) of less than or equal to 6%, and in which at least one of its dimensions is greater than or equal to 30 m.

The invention also relates to the process for preparing said zeolite materials in agglomerated form and to the uses thereof for gas-phase or liquid-phase separation operations.

A method of separating a metal organic framework (MOF) from a solution and associated apparatus. The method comprises: providing a MOF containing solution; contacting the MOF containing solution with an acoustic reflector surface such that, any high frequency ultrasound applied within the MOF containing solution reflects off the acoustic reflector surface; and applying a high frequency ultrasound of at least 20 kHz to the MOF containing solution. The MOF material is substantially separated from solution as aggregated sediment that settles out of solution.

The present disclosure provides CO2 sorbent materials and methods of producing the same. The method includes: (a) combining calcium, at least one metal, and a fuel in a solvent to form a solution; (b) heating the solution formed in (a) to evaporate the solvent and form a combustion mixture; (c) heating the combustion mixture formed in (b) to combustion, to form a combusted material; and (d) calcinating the combusted material formed in (c) to form the CO2 sorbent. The CO2 sorbent may be used for capturing CO2, such as in a calcium looping process.

The present invention relates to a one-dimensional silicate material ZEO-2 with a novel structure and a three-dimensional silicate molecular sieve ZEO-3 obtained by roasting ZEO-2 and a synthesis method therefor and a use thereof. The X-ray powder diffraction characteristics and crystal structures of the two silicate materials are represented. The one-dimensional silicate ZEO-2 can be synthesized by a simple method. The molecular sieve ZEO-3 can be obtained by calcining the one-dimensional silicate ZEO-2 to cause topological condensation. ZEO-2 can be used as a silicon source or a precursor in the synthesis of a novel molecular sieve. The molecular sieve ZEO-3 has good thermal stability and can be used as an adsorbent or a catalyst.