Zirconia nanofibers incorporated polysulfone nanocomposite membrane: Towards overcoming the permeance-selectivity trade-off
Zirconia nanofibers incorporated polysulfone nanocomposite membrane Towards.pdf
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KAUST DepartmentKing Abdullah University of Science and Technology (KAUST), Water Desalination and Reuse Center (WDRC), Division of Biological & Environmental Science & Engineering (BESE), Thuwal 23955-6900, Saudi Arabia
Environmental Science and Engineering Program
Water Desalination and Reuse Research Center (WDRC)
Biological and Environmental Sciences and Engineering (BESE) Division
Online Publication Date2019-10-21
Print Publication Date2019-10
Embargo End Date2021-10-21
Permanent link to this recordhttp://hdl.handle.net/10754/659228
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AbstractEnhancing the properties and structure of the ultrafiltration (UF) membrane via rational manipulation is important to optimize their perm-selectivity performance. To overcome the permeance-selectivity trade-off of nanocomposite membranes, Zirconium dioxide nanofibers (ZrO2 NFs) was synthesized in nano-micro size and then incorporated into the polysulfone (PSf) membrane. The effect of different concentrations of ZrO2 NFs on the membrane properties and performance were investigated. Compared to the pristine PSf membrane, the nanocomposite membranes exhibited a remarkable enhancement in the physiochemical properties, mechanical properties, and the overall performance. The results showed that the nanocomposite membrane (M3, 0.5% ZrO2 NFs) possesses the highest flexibility and tensile strength (43% higher than the pristine PSf). The enhancement of the wettability and enlarge the pore size (2.6 times increase) of this nanocomposite membrane, resulting in a remarkably heightened the pure water permeability (Jw1; 255.8 L m−2 h−1 bar−1). As a result, it achieved the highest permeability during the filtration of BSA solution with no decline in the BSA rejection. Furthermore, compared to the pristine PSf membrane, all nanocomposite membranes exhibited higher mechanical properties. This novel strategy of incorporating the nanofibers, instead of nanoparticles, offers significant opportunities to exploit the various inorganic nanofibers in the fabrication of diverse nanocomposite membrane types.
CitationObaid, M., Ghaffour, N., Wang, S., Yoon, M.-H., & Kim, I. S. (2019). Zirconia nanofibers incorporated polysulfone nanocomposite membrane: Towards overcoming the permeance-selectivity trade-off. Separation and Purification Technology, 116236. doi:10.1016/j.seppur.2019.116236
SponsorsThis work was supported by Korea Environment Industry & Technology Institute (KEITI) through Industrial Facilities & Infrastructure Research Program, funded by Korea Ministry of Environment (MOE) (1485016290).