The Influence of the Structure of Pyromellitic Acid on the Luminescence Intensity of Graphene Oxide/Rare Earth Complexes Hybrid Materials

The development of graphene oxide/rare earth complexes luminescent materials is limited due to the strong quenching ability oxide. However, hybrid with pyromellitic acid (PMA) as ligand not only have better performance, but also stronger luminescence intensity. Herein we tested effect carboxylic structure PMA on intensity materials. Phthalic (PA), Isophthalic (i-PA) and Terephthalic (p-PA) are selected test ligand, representing o-position, meta-position para-position effects PMA. By comparing intensity, found that o-position helpful for sensitize rare ions, oxide sheets (GOSs) improve inhibit GOSs. Furthermore, speculate relationship between distance π–π stacking GOSs This work provides an important reference design oxide/rare-earth aromatic