Porous pellet adsorbents fabricated from nanocrystals
AssigneeKansas State University Research Foundation
InventorsKenneth J. Klabunde, Olga Koper, Abbas Khaleel
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Abstract
Pelletized adsorbent compositions and methods of adsorbing toxic target compounds are provided for the destructive adsorption or chemisorption of toxic or undesired compounds. The pelletized adsorbents are formed by pressing together powder nanocrystalline particles comprising a metal hydroxide or a metal oxide at pressures of from about 50 psi to about 6000 psi to form discrete self-sustaining bodies. The pelletized bodies should retain at least about 25% of the surface area/unit mass and total pore volume of the starting metal particles.
Claims13
A composite comprising a self-sustaining body formed of a plurality of agglomerated nanocrystalline particles having an average crystallite size of up to about 20 nm and selected from the group consisting of metal oxides and hydroxides and mixtures thereof, said body having a total pore volume which is at least about 90% of the total pore volume of said particles prior to said agglomeration thereof, said body having a density of from about 0.2 to about 2.0 g/cm.sup.3.
Dependencies are inferred from the claim text.