Abstract
Modified carbon materials were synthesized by impregnating activated carbons with an aqueous solution of sodium hydroxide followed by thermal treatment in air at moderate temperature (60–200 °C). The samples were tested for sorption-catalytic cleaning of air from hydrogen sulfide. Particular attention was paid to the influence of temperature of thermal treatment (activation) on sorption capacity of the modified carbons to H2S. The modifying of activated carbons by impregnation with aqueous NaOH followed by their thermal treatment in air at 200 °C was shown to allow the dynamic sorption capacity to H2S to be more than 8 times increased. The results obtained can be used to synthesize new materials based on commercial activated carbons for removal of hydrogen sulfide from air.
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