A multifunctional Tb-MOF luminescent sensor for nitrobenzene, Fe3+, and ascorbic acid: synthesis, characterization, mechanism exploration and fabrication of on-site detection device

A novel 3-dimensional TbMOF: [Tb2(D-cam)(Himdc)2(H2O)2] (named sensor 1), was synthesized by a solvothermal method. Sensor 1 exhibits distinct luminescence quenching for nitrobenzene (NB), Fe3+, and ascorbic acid (AA), which indicates sensor 1 might be applied as a multi-functional probe. The luminescence quenching mechanisms for given analytes are further studied in details and it’s found both static and dynamic quenching processes are involved. Furthermore, the fabricated portable sensor 1 may perform on-site detection of NB and AA.