Abstract

In ambient air having 60% relative humidity (RH) at 25°C, the adsorption of methanethiol by sepiolite was studied by comparison with that by coconut-shell active carbon. The amount of methanethiol adsorbed by sepiolite was as small as 0.12 μmol/g in the air with 1 ppm methanethiol, while, the amount by active carbon was as large as > 1.1 μmol/g in the air with ≤ 0.03 ppm methanethiol. Methanethiol was converted into dimethyldisulfide on active carbon. In ambient air having 60% RH at 25°C, the removal of methanethiol by the sepiolite-metal complexes was also studied by comparison with that by the corresponding metal compounds

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