File Name : xrd.tif Caption : fig. 1: diffractogram of mg2al-b-ldh. File Name : ftir.tif Caption : fig. 2: attenuated total reflectance fourier transform infrared spectroscopy spectra of mg2al-b-ldh. File Name : sem esi.tif Caption : fig. 3: scanning electronic microscopy images of the surface morphology of mg2al-b-ldh.