Mohamad Zahir Mohd Pauzi, Nizar Mu’ammar Mahpoz, Norfazliana Abdullah, Mukhlis A Rahman, Khairul Hamimah Abas, Azian Abd Aziz, Muhamad Hasbullah Padzillah, Mohd Hafiz Dzarfan Othman, Juhana Jaafar, Ahmad Fauzi Ismail

This work investigated the feasibility of a metal–organic framework (MOF), Christian-Albrechts-University (CAU-1), deposited on alumina hollow fiber for desalination applications. CAU-1 membranes, synthesized using the solvothermal approach, were characterized using field emission scanning electron microscopy (FESEM), x-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and contact angle measurement. The performances of the CAU-1 membranes were tested using forward osmosis (FO). Using a configuration of active layer facing feed, the CAU-1 membrane (M6) had the highest flux of 18 L m−2 h−1 with a reverse solute value of 0.079 kg m−2 h−1. The M6 membrane was further tested using a configuration of active layer facing draw. Surprisingly, the flux moved from the high salt concentration to low salt concentration, obeying the reverse osmosis phenomenon under low pressure.

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