An active package having LTA zeolites exchanged with palladium is described. This solution is capable to improve the quality of the gaseous atmosphere within the package itself, with particular reference to the presence of ethylene. This solution provides improved performance when the package is accidentally exposed to hydrocarbon vapors and provides benefits in terms of reliability in the ethylene control.

Methods of sulfurizing metal containing particles in the absence of hydrogen are described. One method includes contacting a bed of metal containing particles with a gaseous stream comprising hydrogen sulfide and inert gas under reaction conditions sufficient to produce sulfided metal containing particles. The gaseous stream is introduced into a vertical reactor at an inlet positioned at the bottom portion of the reactor and any unreacted hydrogen sulfide and inert gas is removed at an outlet positioned above the inlet. The sulfided metal containing particles can be removed from the reactor and stored.

Copper based nanoparticle composite compositions, methods, and systems for purification and sterilization of contaminated water are provided.

The present invention discloses novel porous polymeric compositions comprising random copolymers of amides, imides, ureas, and carbamic-anhydrides, useful for the synthesis of monolithic bimodal microporous/macroporous carbon aerogels. It also discloses methods for producing said microporous/macroporous carbon aerogels by the reaction of a polyisocyanate compound and a polycarboxylic acid compound, followed by pyrolytic carbonization, and by reactive etching with CO.sub.2 at elevated temperatures. Also disclosed are methods for using the microporous/macroporous carbon aerogels in the selective capture and sequestration of carbon dioxide.

A material, such as a flexible sheet, including a metal or metal alloy, wherein the metal or metal alloy has at least one porous metal oxide layer thereon. In some examples, the at least one metal oxide layer has a three-dimensional disordered network of channels in which the pores have non-constant diameters. Methods of preparing the materials are also disclosed.

Disclosed herein is a method of producing a polyaniline zirconia nanocomposite, and the uses of the thus produced polyaniline zirconia nanocomposite for the treatment of wastewater. The polyaniline zirconia nanocomposite is characterized in having a particle size of about 0.3 to 50 μm in diameter, an isoelectric point at about pH 6.2, and is capable of reducing at least 99% of the pathological microorganism and at least 60% of the phosphate in the wastewater after coming into contact with wastewater for 24 hrs and 12 hrs, respectively.

Methods of forming a nanocomposite of a base material and a plurality of nanoparticles are provided. In embodiments, the method comprises combining a first input stream of flowing fluid comprising a base material having nucleation sites, a second input stream of flowing fluid comprising a nanoparticle precursor material, and a third input stream of flowing fluid comprising a nanoparticle nucleation agent, to form an output stream of flowing fluid; heating or sonicating or both heating and sonicating the output stream for a period of time; and collecting a nanocomposite formed within the fluid of the output stream, the nanocomposite comprising the base material and a plurality of nanoparticles directly anchored onto a surface of the base material via the nucleation sites. The nanocomposites are also provided.

The invention relates to an adsorbent comprising a zeolite-based phase and a non-zeolite-based phase, said adsorbent having: an outer surface area of less than or equal to 30 m.sup.2.Math.g.sup.−1, preferably less than or equal to 20 m.sup.2.Math.g.sup.−1, a zeolite-based phase comprising at least one zeolite of FAU structure of X type, and a pore diameter distribution, determined by mercury intrusion according to standard ASTM D 4284-83 and expressed by the volume distribution dV/d log DHg, in which DHg is the apparent pore diameter and V is the pore volume, the mode of which is between 100 nm and 250 nm, limits inclusive.

The invention also relates to a process for preparing the said adsorbent and to the uses thereof, especially for separating xylene isomers.

The present invention relates to a zeolite-based adsorbent comprising at least one zeolite of FAU structure of LSX type and comprising barium and/or potassium, in which the outer surface area of said zeolite-based adsorbent, measured by nitrogen adsorption, is between 20 m.sup.2.Math.g.sup.−1 and 100 m.sup.2.Math.g.sup.−1, limits inclusive. The present invention also relates to the use of such a zeolite-based adsorbent as an adsorption agent, and also to the process for separating para-xylene from aromatic isomer fractions containing 8 carbon atoms.

Provided are a core material for a vacuum insulation panel including porous aluminosilicate, and a vacuum insulation panel provided with the same. The core material for the vacuum insulation panel according to the present disclosure has superior long-term durability and improved gas adsorption ability (particularly, superior water absorption ability) while requiring a low raw material cost. The vacuum insulation panel including the core material may exhibit more improved insulation performance by minimizing a reduction in the vacuum degree without an additional getter or absorbent.