High and energy-efficient reversible SO₂ uptake by a robust Sc(<scp>iii</scp>)-based MOF

MFM-300(Sc) was demonstrated to be an optimal adsorbent for SO₂ capture combining high uptake, good stability and excellent cyclability (facile regeneration at only room temperature). A drastic enhancement on its SO₂ uptake (40%) was achieved when a small amount of EtOH was preliminary adsorbed.