The present description provides structures, atomic layer deposition methods for preparing the structures, and an apparatus preparing the structures. The described structures provide unexpected advantages as compared to currently available materials.

The invention is directed to ion capture devices and methods for ion capture.

A filtering and adsorbent sampling and enrichment system comprising a stationary phase consisting of a felt of activated carbon fibres with a micro-meso porous conformation and specific surface area of about 1500 m2/g and sampling and/or enrichment standards, confined within a closed casing, is described, as well as the method for obtaining it and the relative process for the analysis of organic and inorganic analytes that uses said system.

An oil adsorbent is manufactured by including performing heat treatment on a non-woven fabric for low-temperature carbonization, and has the effect of adsorbing and evaporating oil having various carbon numbers ranging from a low boiling point to a high boiling point to remove the oil, has photothermal conversion efficiency, high evaporation efficiency of oil by sunlight, and a high adsorption amount and high adsorption rate, thereby making the adsorption-evaporation cycle fast and efficiently performing the adsorption-evaporation, and has an environmentally friendly effect that does not cause any environmental problems even if the oil adsorbent is put into a river, a sea, or the like and then lost.

A composition is provided for removal of a target substance from a fluid stream. The composition may be used to remove polyfluorinated alkyl substances (PFAS) from water. The composition comprises a support material comprising an alumina; and a sorbent molecule that comprises a core polymer; wherein the core polymer is covalently linked to the support material; and wherein the sorbent molecule further comprises one or more covalently linked sorbent groups. Processes for removal of target substances such as PFAS are also provided.

The present invention relates to an activated carbon, having a pore volume (A) of 0.3 to 0.7 mL/g at a pore diameter of 6.5 to 50 nm as determined by mercury intrusion porosimetry, a pore volume (B) of 0.23 mL/g or less at a pore diameter of 750 to 4,000 nm as determined by mercury intrusion porosimetry, and a pore volume ratio (A)/(B) of 1.7 or higher.

The present invention relates to an activated carbon, having a BET specific surface area (A) of 1,250 to 1,800 m.sup.2/g as determined from a carbon dioxide adsorption isotherm, and a ratio (B)/(C) of 0.640 or lower between a pore volume (B) mL/g at a pore diameter of 0.4 to 0.7 nm and a pore volume (C) mL/g at a pore diameter of 0.7 to 1.1 nm as determined by performing a grand canonical Monte Carlo simulation on a carbon dioxide adsorption-desorption isotherm.

The present invention relates to the adsorbent for separating organochloride compound from liquid hydrocarbon and a process thereof, wherein said adsorbent is the silica and aluminosilicate composite having infiltrate structure subjected to the modification of the surface property with small metal having high electronegativity.

In one aspect, an oxygenated hierarchically porous carbon (an “O-HPC”) is provided, the O-HPC comprising: a hierarchically porous carbon (an “HPC”), the HPC comprising a surface, the surface comprising: (A) first order pores having an average diameter of between about 1 μm and about 10 μm; and (B) walls separating the first order pores, the walls comprising: (1) second order pores having a peak diameter between about 7 nm and about 130 nm; and (2) third order pores having an average diameter of less than about 4 nm, wherein at least a portion of the HPC surface has been subjected to O.sub.2 plasma to oxygenate and induce a negative charge to the surface. In one aspect, the O-HPC further comprises metal nanoparticles dispersed within the first, second, and third order pores. Methods for making and using the metal nanoparticle-impregnated O-HPCs are also provided.

The present disclosure relates to hydrocarbon emission control systems. More specifically, the present disclosure relates to substrates coated with hydrocarbon adsorptive coating compositions and evaporative emission control systems for controlling evaporative emissions of hydrocarbons from motor vehicle engines and fuel systems.