In this study Mg/Al layered double hydroxides (LDHs) and organo-modified chiralLDHs were synthesized in one step under green conditions. Co-precipitation reaction of the Al(NO 3 ) 3 . 9H 2 O, Mg(NO 3 ) 2 . 6H 2 O and different biocompatible N,N-(pyromellitoyl)-bis-L-amino acids was carried 10 out in aqueous solution in a short time by ultrasonic technique. Field emission scanning electron microscopy and transmission electron microscopy techniques showed that the resulting products have good crystallinity and uniform morphology. The presence of the bioactive surfactants in the interlayer space of LDH was confirmed by the Fourier transformed infrared spectroscopy, X-ray diffraction (XRD) and thermogravimetry analysis techniques. As expected, the positions of the 15 basal reflections in the XRD patterns of modified samples are shifted to higher d value indicating the expansion in the interlayer distance. Thermal properties were investigated by thermogravimetry analysis technique.
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