A dual ligand Eu-MOF with high stability and quantum yield for the detection of trace Fe3+, CrO42− and Cr2O72− in aqueous environments

A dual ligand Eu-MOF with high stability and quantum yield was synthesized for the efficient detection of trace Fe 3+ , CrO4 2− and Cr 2 O7 2− . The fluorescence sensing mechanism involved photoinduced electron transfer and competitive absorption.