Adsorption/Oxidation of Hydrogen Sulfide on Nitrogen-Containing Activated Carbons

By F. Adib, A. Bagreev, T. Bandosz. 2000

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Surface functional groups of carbons and the effects of their chemical character, density and accessibility to ions on electrochemical performance (2008, methodology): “The amount of nitrogen introduced to the carbon is believed to be dependent on the nitrogen precursor [21–24], the surface chemistry [16,17,22–24] and the aromatization le-”
Silica-templated melamine–formaldehyde resin derived adsorbents for CO2 capture (2008, background): “Nitrogen incorporation has previously been demonstrated to enhance the adsorptive properties of activated carbons for hydrogen sulphide, SOx, NOx and acetaldehyde [8–11] and recently CO2 [12].”
Bituminous coal-based activated carbons modified with nitrogen as adsorbents of hydrogen sulfide (2004, background): “It was shown that its presence enhances the process of hydrogen sulfide [19] and sulfur dioxide removal [20].”
Removal of Hydrogen Sulfide From Various Industrial Gases: A Review of The Most Promising Adsorbing Materials (2020, unknown): “[55] prepared an activated carbon impregnated with urea in order to increase basicity, but the H2S conversion dropped from 298 to 272 mg/g for the impregnated sorbents relative to the bare AC, which was probably caused by a substantial drop in the surface area of the sorbent (18%).”