Partial quaternization promoted metal–organic frameworks for efficient photocatalytic removal of chromium(vi)

A one-step strategy is applied to partially quaternize the ligand of UiO-66-NH₂, and the resultant UiO-66-N(CH₃)₃⁺ showed greatly improved photocatalytic performance for Cr(VI) reduction, with the apparent reaction rate constant k increasing by 8.3 times. This strategy could be used to effectively promote the performance of other MOFs-NH₂, demonstrating general applicability.