Removal of gaseous sulfur and phosphorus compounds by carbon-coated porous magnesium oxide composites

摘要: Abstract Carbon-coated porous magnesium oxide (MgO/C) composites were synthesized using an aerogel route for removal of dimethyl methylphosphonate (DMMP) and 2-chloroethyl ethyl sulfide (2-CEES) in dry wet conditions. The sorption capacities the as-prepared samples DMMP (0.23 μg/mL) 2-CEES (0.26 μg/mL) evaluated by breakthrough experiments nitrogen under ambient MgO/C exhibited a decrease surface area with carbon content (648–723 m 2 /g), but had higher than MgO. Under conditions, composite low 6.39 wt% (MgO/C-1; 67.8 mg/g 35.3 mg/g 2-CEES) those pure MgO activated (AC). capacity decreased increase became even lower AC. humid time significantly that In contrast, MgO/C-1 conditions remained at about 91 86% measured addition, reactive toward more stable because presence carbon-coated shells.