Synthesis And Characterization Of JUC-32@PIM-1 Mixed Matrix Membrane

Since the second industrial revolution,the widespread use of fossil fuels has greatly improved the living standards of human beings.However,there are still many problems with it.Among them,the most remarkable one is the surge of carbon dioxide emissions,which causes Greenhouse Effect.High carbon dioxide emission causes serious meteorological problems that affect the sustainable development of society.It is reported that the total amount of carbon dioxide produced by human activities reached 41 billion tons in 2017.Therefore,carbon capture technology has always been a hot topic.On the other hand,in recent decades,due to the increasing awareness of the different chemical activities of enantiomers,the demand for the production and separation of enantiomers has become increasingly strong.In addition,separation of enantiomers are needed in producing agricultural chemicals,spices,polymers and perfumes.So there is a need for a more economic way to separate enantiomer.Metal-organic Frameworks(MOFs)have a wide range of potential applications due to their diversity and porosity,such as gas storage,chemical separation,catalysis,drug transport,light capture,energy conversion,sensor,conduction,ion exchange,etc.Therefore,MOFs materials have become a hot topic in recent years.Using MOFs for gas separation is one of the most promising applications.MOFs with porosity and controllable aperture make them more suitable for gas storage and separation than molecular sieves and carbon materials.Over the past few decades,there have been many reports on gas adsorption and separation by MOFs.The first part of this paper makes a MOFs material suitable for MMMs packing by adjusting the growth conditions of JUC-32.The Matrix is PIM-1,which is also a porous polymer material.We combine the two materials by preparing the MMMs membrane of JUC-32 @PIM-1.Gas separation test of JUC-32 @PIM-1 shows better performance than either of the two chemicals,proving JUC-32 @PIM-1 fully possesses the advantages of the two materials.The second part is the chiral induction of JUC – 32 and the selective adsorption test.The MMMs film with enriched chiral MOFs material as inorganic filler also shows good performance in enantiomer separation.This paper proved this by the pervaporation of enantiomers,thus providing a new possibility for reducing the cost in chiral separation.