Fig. 2: Preparation of the ANF membrane and structural characterization.
From: Light-enhanced osmotic energy generation with an aramid nanofiber membrane

A Cross-sectional and surface SEM images of an ANF membrane. The left inset is the top-view SEM image of the ANF membrane. B XRD patterns of the fresh and illuminated ANF membranes in HCl. C Raman spectra of the fresh and illuminated ANF membranes in HCl. D FTIR-ATR spectra of the fresh and illuminated ANF membranes in HCl.