fig20

Figure 20. Schematic diagram of other 2D nanofluidic membranes. (A) AAO/SNF composite membrane. (B) SEM diagram of SNF membrane surface. Inset illustrates Tyndall light scattering effect of SNF solution. Figures reproduced with permission from Xin et al.^[127] (Copyright © 2019 Nature). (C) Transport of ions across membrane before and after the oxidation of BP membrane (functional phosphorus compounds marked in red circle). Figure reproduced with permission from Zhang et al.^[128] (Copyright © 2020 National Academy of Sciences). (D) Fabrication process of g-C₃N₄/CNF composite membrane. (E) Schematic diagram of selective ion transport in g-C₃N₄/CNF composite membrane. Figures reproduced with permission from Gao et al.^[131] (Copyright © 2022 Elsevier). AAO: Anodic aluminum oxide; SNF: silk nanofiber; BP: black phosphorus; CNF: cellulose nanofiber.