Fig. 2: Characterisation of LDH nanosheets and LBL assembly of (LDH/FAS)n membranes.
From: High-efficiency CO2 separation using hybrid LDH-polymer membranes

a XRD patterns of MgAl(CO3)-LDH and MgAl(NO3)-LDH. b SEM images of MgAl(NO3)-LDH. c Tapping-mode AFM image and height profiles of single-layer MgAl-LDH nanosheets. d UV–Vis absorption spectra of the (LDH/FAS)n membranes (inset: the approximately linear relationship between absorbance at 272 nm and bilayer number n).