Simultaneous Intercalation of 1-Naphthylacetic Acid and Indole-3-butyric Acid into Layered Double Hydroxides and Controlled Release Properties

Figure 3

FT-IR spectra of (a) MgAl-CO₃-LDHs, (b) MgAl-NAA-LDHs, (c) MgAl-IBA-LDHs, and (d) MgAl-NAA/IBA-LDHs.