Graphite oxide, graphene oxide and/or graphene-containing composites for use in a filter assemblies and methods of making the same are described. Fluid treatment systems using a filter assembly having graphite oxide, graphene oxide and/or graphene-containing composites are also described. The filter assemblies and systems described herein can be used to purify contaminated fluids including water, aqueous solutions, a gas or mixture of gases, or any combination thereof. The graphite oxide, graphene oxide and/or graphene-containing composites can also have one or more of a zeolite, a boron nitride, a rare earth element, and an ionic salt incorporated therein for specific uses and desired properties.

Methods for removing a target selenium entity from fluids by treating the fluid with a rare earth impregnated media containing an immobilized rare earth. The methods including obtaining a contaminated fluid comprising water and dissolved selenate; contacting the feed fluid with a rare earth impregnated media for removal of at least a portion of the selenate from the feed fluid thereby forming a treated fluid comprising less selenium than the feed fluid.

A methyl iodide adsorber, comprising a zeolite containing at least one iodide-adsorbing metal or a compound thereof, wherein the zeolite is a hydrophobic zeolite. Also, a use of the adsorber and a method for the adsorption of methyl iodide.

The present disclosure relates to a substrate containing passive NO.sub.x adsorption (PNA) materials for treatment of gases, and washcoats for use in preparing such a substrate. Also provided are methods of preparation of the PNA materials, as well as methods of preparation of the substrate containing the PNA materials. More specifically, the present disclosure relates to a coated substrate containing PNA materials for PNA systems, useful in the treatment of exhaust gases. Also disclosed are exhaust treatment systems, and vehicles, such as diesel or gasoline vehicles, particularly light-duty diesel or gasoline vehicles, using catalytic converters and exhaust treatment systems using the coated substrates.

Metal-Organic Frameworks (MOFs) comprising an isoreticular series of MOFs based on face centered cubic (feu) topology. These MOFs can contain a rare earth metal (RE) located at the center and a ligand, for example, terephthalic acid or bipyridine and their extended forms. These MOFs can be combined with single walled carbon nanotubes (SWCNTs) to obtain a carbon nanotube (CNT)-metal organic framework (MOF) composite (CNT@MOF). This CNT@MOF is useful for, e.g., removing dyes from wastewater and can be tailored to meet the size of the dye to be removed.

The present invention relates to a process for the detection and adsorption of arsenic from ground water and industrial waste water using lanthanide doped nanoparticles. More particularly, the present invention provides a process for the detection and adsorption arsenic in ppm level using Eu.sub.0.05Y.sub.0.95PO.sub.4 nanoparticles.

A phosphorus adsorbent, which is used for adsorbing phosphorus in extracorporeal circulation, is a powder comprising a carbonate of a rare earth metal or an oxide of a Group 4 element and having a solubility in 100 g of water at 20 C. of 10 mg or less. The porous fiber, which comprises the phosphorus adsorbent carried therein, shows a change in pH value of from 1.0 to +1.0 inclusive before and after stirring in physiological saline for 4 hours. The phosphorus adsorption columns respectively comprise the phosphorus adsorbent and the porous fiber each disposed therein.

The present disclosure relates to a substrate containing passive NO.sub.x adsorption (PNA) materials for treatment of gases, and washcoats for use in preparing such a substrate. Also provided are methods of preparation of the PNA materials, as well as methods of preparation of the substrate containing the PNA materials. More specifically, the present disclosure relates to a coated substrate containing PNA materials for PNA systems, useful in the treatment of exhaust gases. Also disclosed are exhaust treatment systems, and vehicles, such as diesel or gasoline vehicles, particularly light-duty diesel or gasoline vehicles, using catalytic converters and exhaust treatment systems using the coated substrates.

A method of removing hydrogen interstitially dissolved within an object can include: positioning a sorption pad having a contact surface and comprising a sorptive material; urging the contact surface into metallurgical contact with the first target surface while at a treatment temperature that is greater than about 200 degrees Celsius; c) maintaining the metallurgical contact for a treatment period during which the hydrogen migrates from the target object to the sorptive material; and at the conclusion of the treatment period, separating the contact surface from the first target surface and moving the sorption pad and any hydrogen sequestered therein away from the object.

A gas purification getter for purifying a gas. The getter includes a canister having a cylinder body including a corrugated wall, an inlet end cap coupled to an inlet end of the cylinder body and an outlet end cap coupled to an outlet end of the cylinder body so that the cylinder body, the inlet end cap and the outlet end cap define a sealed chamber. The getter also includes a powder bed of a getter material provided within the chamber so that a flow of the gas from the inlet end to the outlet end is purified by the getter material. Voids in the powder bed when the canister is horizontally oriented are limited to raised portions in the corrugated wall so that there is no short circuit path for the gas to flow from the inlet end to the outlet end.