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Abstract: Molecular separations that enable selective transport of target molecules from gas and liquid molecular mixtures, represent the most energy intensive and significant demands. A number of emerging microporous organic materials have displayed the great potential as building blocks of molecular separation membranes, which not only integrate the rigid, well-defined pore structures and superior stability of inorganic molecular sieve membranes, but also afford high degree of freedom to create chemically-rich combinations/sequences. In this speech, we will highlight our recently proposed organic molecular sieve membranes (OMSMs) concept with the focus on the precise construction of membrane structures and efficient intensification of membrane processes. The platform chemistries, designing principles, assembly methods for the precise construction of OMSMs are elaborated. Conventional mass transport mechanisms are analyzed based on the interactions between OMSMs and penetrate(s). Particularly, 'STEM' guidelines of OMSMs are highlighted to instruct the precise construction of OMSM structures and efficient intensification of OMSM processes. Emerging mass transport mechanisms are elucidated based on the inspiration of the mass transport processes in biological world. The representative applications of OMSMs in gas and liquid molecular mixture separations are presented.
Bibliography: Zhongyi Jiang is a Professor at School of Chemical Engineering and Technology of Tianjin University. He obtained a PhD degree from Tianjin University in 1994. He was a visiting scholar of University of Minnesota with Prof. Edward Cussler in 1997 and California Institute of Technology with Prof. David Tirrell in 2009. He is the Changjiang (Cheung Kong) Chair Professor, winner of the National Science Fund for Distinguished Young Scholars in China, and a fellow of the Royal Society of Chemistry. He is an editorial board membrane of Journal of Membrane Science, Separation and Purification Technology, Green Chemical Engineering, etc. His research interests include biomimetic and bioinspired membranes and membrane processes, biocatalysis, and photocatalysis. Until now, he has co-authored over 500 peer-reviewed scientific papers, and the total citation times is over 23,000 with a h-index of 81.