Mof-based basswood nanocomposite membrane of PDDA framework for ultrafast recognition and separation of ribavirin

Abstract

The application system for membrane separation technology has been enlarged thanks to research and development into new technologies, however membrane separation still confronts many difficulties. This study uses vacuum self-assembly technology for the first time to combine in-situ grown metal–organic framework (MOF) basswood with poly dimethyl diallyl ammonium chloride (PDDA) ring framework to adsorb and separate ribavirin (RBV). The resulting imprinted film exhibits excellent adsorption capacity (49.2 mg g−1) and selectivity (better than 4.6) thanks to the numerous accessible imprinting sites provided by MOF that had previously been grown in situ on basswood and the synergistic effect of the PDDA ring framework. Dynamic permeation was utilized in this study to assess the membrane's stability, and the findings revealed that it consistently has a high separation factor (superior to 9) under specific pressure and time conditions. Furthermore, the synthesis process of MOF/layered PDDA framework-basswood membranes (MLFBMs) is facile and has little environmental impact. Last but not least, the aforementioned experimental findings and synthetic procedure demonstrate that the domains of selective separation, chemical engineering, and environmental protection can greatly benefit from the use of our MLFBMs synthesis technique.