首页|Catalytic TFN membranes containing MOF loaded Ag NPs prepared by interfacial polymerization
Catalytic TFN membranes containing MOF loaded Ag NPs prepared by interfacial polymerization
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NSTL
Efficiency and sustainability of catalytic thin-film nanocomposite (TFN) membranes are crucially important for the reverse-osmosis performance of thin film composite (TFC) membranes in many fields. Herein, Ag@UiO-66-NH2 catalytic nanoparticles were fabricated and incorporated into the polyamide active layer through by co-valent bond via the interfacial polymerization (IP) method. Polyamide TFN membranes with high efficiency, sustainable catalytic degradation of Rhodamine B (RhB), and excellent self-cleaning performance were prepared conveniently. The 0.8 wt % Ag@UiO-66-NH2 composite membrane has excellent permeability stability, and the flux recovery rate can reach 81.6% after 7 runs. In addition, the degradation rate of RhB can reach 99.6% by using this membrane. More importantly, the degradation efficiency of 250 mL RhB solution can still reach 94.5% after 7 cycles of catalytic test. The degradation effect of RhB by the TFN membranes was enhanced significantly owing to the synergistic effect of the adsorption and catalytic properties of Ag@UiO-66-NH2 nanoparticles. Moreover, it provides a universal method for preparing TFN membrane with a catalytic active layer, which can be applied in other fields of catalytic film by replacing Ag NPs with other particles.
NSTL
