The present invention relates to activated carbon sorbents including nitrogen. In various embodiments, the present invention provides an activated carbon sorbent including a halogen- or halide-promoted activated carbon, the activated carbon sorbent particles including nitrogen in a surface layer of the sorbent particles. In various embodiments, the present invention provides a method of reducing the pollutant content in a pollutant-containing gas using the activated carbon sorbent. In various embodiments, the activated carbon sorbent can remove mercury from a mercury-containing gas that includes sulfur(VI) such as SO.sub.3 more efficiently than other sorbents.

A dispersion liquid of the present invention includes: a carbon nanohorn aggregate obtained by aggregating a plurality of single-walled carbon nanohorns in a fibrous form; and a solvent.

Carbonaceous material that is activated to form precursor activated carbon is further enhanced by doping with copper and nitrogen and calcining. The resultant sorbent material has excellent catalytic properties which are useful in the field of fluid purification.

A method of manufacturing a carbon nanotubes-based adsorption/filtration nanomaterial for high-volume cleaning of fluids, which are annealed without access to ambient air at a temperature of 300 to 1150 C. for 0.1 to 12 hours, is described, said carbon nanotubes being subsequently immobilized on a support. substrate based on fibrous natural or synthetic material. Preferably, an inert coarse-grained inorganic and/or organic material is mixed with the immobilized carbon tubes to form a composite adsorption/filtration nanomaterial as a homogeneous mixture.

A method of preparing an activated charcoal can include obtaining palm leaves; grinding the palm leaves; refluxing the ground palm leaves with sodium hydroxide (NaOH) to obtain a basic solution; draining the basic solution from the palm leaves; washing and drying the ground palm leaves; refluxing the dried ground palm leaves with potassium permanganate (KMnO.sub.4) to obtain a reaction mixture; heating the reaction mixture; washing the reaction mixture with hydrochloric acid (HCl); and drying the reaction mixture to obtain activated carbon. A method of removing a pollutant from an aqueous solution includes contacting the activated carbon as prepared in with the aqueous solution to remove organic dyes.

An antibiological sorbent can include sorbent material (e.g., porous carbon, activated carbon, inorganic carbon, organic carbon, etc.), antibiological material, optionally a functionalizing material, and/or any other suitable material. The antibiological material (and/or the functionalizing material) can coat, intercalate within (e.g., within a porous network of), form structures on, be disposed on, bind to, and/or otherwise be interfaced to the sorbent material. A method for manufacturing the antibiological sorbent can include: mixing sorbent material with a precursor; optionally, functionalizing (e.g., activating) the sorbent material; forming antibiological material from the precursor; optionally, post-processing (e.g., washing) the resulting material; and/or any suitable steps.

A carbon film coating structure and a method for coating that structure onto a work are provided, in which a carbon material such as a carbon nanotube is applied to a work for coating thereof with high density and high integration so that the coating has an outstanding electrical conductivity and thermal conductivity, heat resistance, high strength and flexibility owing to the characteristics of carbon, and in which a carbon such as CNT is applied to the work for coating thereof easily and inexpensively, and with high density and high integration. A carbon material is coated or impregnated on a surface layer of a work. The work can deposit a suboxide or oxide containing metal ions. A porous primary film is formed on the surface layer of the work. The carbon film is coated or impregnated on an irregular part of the surface layer of the primary film.

A system and method for cleaning, conditioning, and/or rejuvenating carbon-based sorbents is disclosed where a chemical cleaning process is used to separate contaminants from the sorbent. The contaminants can be disposed of or recycled for industrial uses. The cleaned and/or rejuvenated carbon-based sorbent is recycled back into a reverse venturi shaped fluidized bed apparatus for later use. Spent carbon-based sorbent can be routed for appropriate disposal. The carbon-based sorbents include, but are not limited to, activated carbon sorbent and biochar sorbent. Optionally, the sorbents can be processed through the system prior to exposure to contaminated emissions to enhance and increase the porosity of the outer surface of the sorbents.

A method for producing an active carbon filter for a carbon canister includes defining a body having a honeycomb structure with a plurality of bleed passages from a polymer based material, and forming an adsorption layer along a surface of the body, where the adsorption layer is made of a carbon based material.

The present invention relates to activated carbon sorbents including nitrogen. In various embodiments, the present invention provides an activated carbon sorbent including a halogen- or halide-promoted activated carbon, the activated carbon sorbent particles including nitrogen in a surface layer of the sorbent particles. In various embodiments, the present invention provides a method of reducing the pollutant content in a pollutant-containing gas using the activated carbon sorbent. In various embodiments, the activated carbon sorbent can remove mercury from a mercury-containing gas that includes sulfur(VI) such as SO.sub.3 more efficiently than other sorbents.