Abstract
Zinc-containing activated carbons (Zn-ACs) were prepared by impregnating raw activated carbon (R-AC) with zinc acetate solution. Then, the capacity of Zn-ACs to adsorb hydrogen sulfide as an offensive odor was evaluated. The values of physical properties of Zn-ACs were smaller than those of R-AC due to the filling pores of activated carbon by zinc acetate. However, the amounts of hydrogen sulfide adsorbed onto Zn-ACs were larger than that onto R-AC in equilibrium pressure below 100 hPa. The increase in the amount adsorbed onto Zn-ACs at the lower pressure region may be due to the chemical interaction of the zinc on the adsorbent and hydrogen sulfide.
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