Highly luminescent hybrids N-GQDs/Eu(3+)@Mg-MOF (N-GQDs = N atom doped graphene quantum dots and Mg-MOF = {[Mg3(ndc)2.5(HCO2)2(H2O)][NH2Me2]·2H2O·DMF}) have been synthesized and their photophysical properties were investigated. The resulting luminescent material can exhibit dual-emission from N-GQDs and Eu(3+) when excited at 394 nm, whereas the emission of ligand-based and Eu(3+) can be collected when excited at 349 nm. Exposed to a series of atmospheric benzene homologues (BTEX) in a sealed environment for 1 hour at 25 °C, N-GQDs/Eu(3+)@Mg-MOF shows excellent fingerprint correlations between the exact BTEX and the emission peak height ratio of IL/IEu (luminescent intensity ratio of ligand-based emission at 414 nm and Eu(3+)-based emission at 618 nm) and IEu/IN-GQDs (luminescent intensity ratio of l-emission based on N-GQDs at 443 nm and Eu(3+)-based emission at 618 nm), which makes it possible for this material to become a good platform for the detection of BTEX.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.