Selective separation of aromatic compounds using organic-inorganic layered nanohybrids

Nonporous inorganic compounds had no selectivity for the adsorption of the o-, m-, p-xylene mixtures. On the other hand, organic-inorganic nanohybrids were considered as the adsorption medium, and some of them have the selectivity on the adsorption of xylene mixtures. The size of xylene isomers and pore size of the organic-inorganic nanohybrids are primary factor for the selectivity. In this study, the nanohybrids that contained an organic compound between the inorganic layers were prepared, and the possibility as the selective adsorption medium was examined. Various organic-inorganic nanohybrids were modified chemically and their adsorption abilities were evaluated. Preferential adsorption was observed.