Sulfonated periodic-mesoporous-organosilicas column for selective separation of C2H2/CH4 mixtures

PMOs with good stability are firstly selected for C2H2/CH4 separation, wherein sulfonated biphenylene-bridged PMO material (s-PMO-2) has the highest selectivity toward C2H2/CH4 mixture and the experimental breakthrough further demonstrates s-PMO-2 has excellent separation performance.266