Post-synthesis functionalization of a zeolitic imidazolate structure ZIF-90: a study on removal of Hg(ii) from water and epoxidation of alkenes

Thiol-functionalized ZIF-90 (ZIF-90-SH) and its Mn(ii)-immobilized form (ZIF-90-S[Mn]) were prepared. The former exhibited an Hg²⁺adsorption capacity ofca.22.4 mg g⁻¹at room temperature and ZIF-90-S[Mn] showed good catalytic performance in the epoxidation of several important alkenes using molecular oxygen under atmospheric pressure.