Observation of Stacking Faults and Photoluminescence of Laurate Ion Intercalated Zn/Al Layered Double Hydroxide

NO3-type Zn/Al layered double hydroxides were synthesized by co-precipitation method. The interlayers of the layered double hydroxides were highly expanded by intercalating laurate ions by ion exchange to get it easier to distinguish each layer of the layered double hydroxides by high-resolution transmission electron microscopy observation. Direct observation of the stacking faults in the expanded LDH was successfully carried out by intercalating the laurate ions. The expanded LDH exhibited photoluminescence under the irradiation of 325 nm UV light. (C) 2017 Elsevier B.V. All rights reserved.