Vinu M.Senthil Raja D.Jiang Y.-C.Liu T.-Y.Xie Y.-Y.Lin Y.-F.Yang C.-C.Lin C.-H.Alshehri S.M.Ahamad T.Salunkhe R.R.Yamauchi Y.Deng Y.-H.Wu K.C.-W.2019-05-172019-05-17201818761070https://scholars.lib.ntu.edu.tw/handle/123456789/408879A new two-dimensional microporous metal organic framework (MOF), Al-MOF, [Al(OH)(MBA)] (CYCU-7, MBA = diphenylmethane-4,4¡¬-dicarboxylate anion) and its reported analogue, [Al(OH)(SBA)] (CAU-11, SBA = 4,4¡¬-sulfonyldibenzoate anion), have been synthesized using hydrothermal and solvothermal methods, respectively, and their structural crystallinities and defect porosities were carefully controlled and characterized by N 2 sorption isotherms and 27 Al solid-state nuclear magnetic resonance measurements. Interestingly, the MOF synthesized by the ethanol-based solvothermal method (CYCU-7) show a significant degree of linker-missing defects compared to that synthesized by the water-based hydrothermal method (CAU-11). We further incorporated the synthesized CYCU-7 and CAU-11 with chitosan (CS) biopolymer to make CYCU-7@CS and CAU-11@CS mixed matrix membranes (MMMs) with the loading amount of MOF 2.5, 5.0, or 10 wt%. The as-prepared CYCU-7@CS and CAU-11@CS MMMs were applied for separation of water/ethanol mixtures through the pervaporation process, and the effects of the structural properties (e.g. crystallinity and defects) of CYCU-7 and CAU-11 on the separation performance are studied. It is found that defect-rich CYCU-7@CS MMMs exhibit higher flux, while CAU-11@CS MMMs with higher crystallinity exhibit a higher separation factor. In addition, the CAU-11@CS MMM with 5.0 wt% loading of CAU-11 displays the best separation performance (separation factor = 2741 and flux = 458 g/m 2 h). ? 2017 Taiwan Institute of Chemical EngineersChitosanMetal-organic frameworksMixed matrix membranePervaporation processSeparationjournal article10.1016/j.jtice.2017.11.0072-s2.0-85041220115https://www.scopus.com/inward/record.uri?eid=2-s2.0-85041220115&doi=10.1016%2fj.jtice.2017.11.007&partnerID=40&md5=3ce52d7080f912584453e1bf163b3c18