The selectively fluorescent sensing detection and adsorptive removal of Pb with a stable [δ-MoO]-based hybrid.

A polyoxomolybdate based hybrid, [δ-MoO](L)·2HO (BUC-77), was synthesized via hydrothermal method, which exhibited selectively fluorescent detection and efficient adsorptive removal toward Pb in aqueous environment. A good linearity was observed between the fluorescence quenching percentage of BUC-77 and the Pb concentration, along with the detection limit being 6.91 ppb.