Improving Photoluminescence Emissions and Photostability of Dye/MgAl-Layered Double Hydroxide Nanohybrids

The purpose of this study was the preparation of layered double hydroxide (LDH) -based nanohybrids with improved photoluminescence emission and high photostability. The anion exchange-based microwave method was applied for the intercalation of mordant orange 1 into MgAl-LDH. The prepared organic-inorganic nanohybrid was confirmed by X-ray diffraction, thermal gravimetric analysis (TGA), inductively coupled plasma spectrometry (ICP), and infrared spectra (FT-IR). Also, the morphology of the obtained sample was investigated using the field emission-scanning electron microscopy (FE-SEM) method. In the MgAl-LDH interlayer space, a tilted orientation and bilayer arrangement were predicted for the mordant orange 1 anions. Compared with the pure mordant orange 1, the MgAl-LDH/mordant orange 1-MA (prepared using the microwave-based anion exchange method) has improved photoluminescence emission with high Photostability. These findings supply a new approach for designing photoluminescence materials that potentially apply to optical devices with high Photostability.