Figure 1: Characterization of sodium titanate nanobelt (Na-TNB) membrane.

(a) The fabrication of Na-TNB membrane by vacuum filtration; photographs of the Na-TNBs membrane before (b) and after silicone coating (c) and their corresponding radionuclide removal and oil uptake studies, respectively; inset: water contact-angle measurement. (d) The flexible free-standing Na-TNBs membrane. (e) The Na-TNBs membrane with different diameter discs and (f) the stability of Na-TNBs membrane in solution. (g) The cross-sectional SEM image of Na-TNBs membrane and SEM (h) and TEM (i) images of Na-TNBs.