An ultrastable zinc(ii)–organic framework as a recyclable multi-responsive luminescent sensor for Cr(iii), Cr(vi) and 4-nitrophenol in the aqueous phase with high selectivity and sensitivity

An ultrastable Zn-MOF shows recyclable and multi-responsive sensing for Cr(iii), Cr(vi) and 4-nitrophenol in an aqueous system with high selectivity and sensitivity.