Fig nbsp xA FESEM of the
Fig. 5. FESEM of Tariquidar top surface of TFN prepared from different NH2-TNTs loadings, (a) TFC, (b) TFN0.01, (c) TFN0.05 and (d) TFN0.1.Figure optionsDownload full-size imageDownload as PowerPoint slide
3.3. Effect of NH2-TNTs loading on the performance of TFN membrane during RO experiments
Fig. 6. Water flux and NaCl rejection of TFC/TFN membranes (test conditions: 1.5 MPa, 25 °C and 2000 mg/L NaCl aqueous solution).Figure optionsDownload full-size imageDownload as PowerPoint slide
Fig. 7. Properties of substrates with respect to contact angle and − ΔGSL.Figure optionsDownload full-size imageDownload as PowerPoint slide
Fig. 8 presents the separation characteristics of the membranes fabricated in this study. As shown, all the TFN membranes demonstrated higher water permeability than the control TFC membrane. The overall RO performance of the membranes was evaluated by the salt permeability/water permeability (B/A) ratio . The results showed that TFN0.05 membrane is the best performing membrane with the lowest (B/A) ratio. Indeed, TFN 0.05 membrane is featured by the highest salt separation and reasonably high water flux among the tested membranes.