Nano-silica/polysulfone asymmetric mixed-matrix membranes (MMMs) with high CO2 permeance in the application of CO2/N2 separation

Main Authors: Julian, Helen, Sutrisna, Putu Doddy , Hakim, Ahmad Nurul, Harsono, H.O., Hugo, Y.A., Wenten, I G.
Format: Article PeerReviewed application/pdf
Terbitan: Taylor and Francis Inc , 2018
Subjects:
Online Access: http://repository.ubaya.ac.id/37570/1/Polymer%20Plastics%20and%20Technology%202018%2Dcompressed.pdf
https://www.tandfonline.com/doi/abs/10.1080/03602559.2018.1520253?journalCode=lpte21
http://repository.ubaya.ac.id/37570/
Daftar Isi:
  • Nano-sized silica/polysulfone (PSf) flat sheet asymmetric MMMs with high CO2 permeance for CO2/N2 separation were fabricated by dry/wet phase inversion method using N, N-dimethylacetamide (DMAc) and tetrahydrofuran (THF) as solvents and ethanol as additives. The results indicated that the addition of nano-silica on the polymer matrix resulted on reduced membrane performance due to void formation and particle agglomeration. Optimum membrane performance was obtained at the following fabrication parameters: 22 wt.% PSf, 31.8 wt.% DMAc, 31.8 wt.% THF, 14.4 wt.% ethanol, 20 s evaporation time, and 0 wt.% silica loading, with CO2/N2 selectivity of 15.6 and CO2 permeance of 14.2 GPU.