Details
| Original language | English |
|---|---|
| Pages (from-to) | 97-105 |
| Number of pages | 9 |
| Journal | Journal of membrane science |
| Volume | 564 |
| Early online date | 3 Jul 2018 |
| Publication status | Published - 15 Oct 2018 |
| Externally published | Yes |
Abstract
A unique method for the preparation of cellulose-polyethyleneimine (PEI) blend membranes for nanofiltration is presented. Trimethylsilyl cellulose was used as a precursor for the blend membrane fabrication followed by a simple hydrolysis to regenerate the cellulose structure. The resulting homogeneous blend membranes exhibited high neutral solute rejection in water, which was surprisingly better than the performance of the individual membranes due to the strong interactions between the blended polymers. More interestingly, the same membrane demonstrated over five times higher flux of methanol after solvent activation with water as compared to the fluxes of the pure membranes, attributed to formation of nanocracks. High rejection of negatively charged dyes in this solvent with around 450 Da molecular weight cut-off was obtained at an exceptionally high flux of 160 Lm−2 h−1 at a pressure of 4.5 bar. The membranes will be beneficial in nanofiltration of polar solvents containing neutral and charged molecules.
ASJC Scopus subject areas
- Biochemistry, Genetics and Molecular Biology(all)
- Biochemistry
- Materials Science(all)
- General Materials Science
- Chemistry(all)
- Physical and Theoretical Chemistry
- Chemical Engineering(all)
- Filtration and Separation
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In: Journal of membrane science, Vol. 564, 15.10.2018, p. 97-105.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Cellulose-polyethyleneimine blend membranes with anomalous nanofiltration performance
AU - Puspasari, Tiara
AU - Huang, Tiefan
AU - Sutisna, Burhannudin
AU - Peinemann, Klaus Viktor
N1 - Funding Information: The authors gratefully acknowledge financial support from King Abdullah University of Science and Technology (KAUST) and they thank Wojciech Ogieglo for the spectroscopic ellipsometry analysis, Long Chen for the AFM measurements and Priyanka Manchanda for the chemistry discussions.
PY - 2018/10/15
Y1 - 2018/10/15
N2 - A unique method for the preparation of cellulose-polyethyleneimine (PEI) blend membranes for nanofiltration is presented. Trimethylsilyl cellulose was used as a precursor for the blend membrane fabrication followed by a simple hydrolysis to regenerate the cellulose structure. The resulting homogeneous blend membranes exhibited high neutral solute rejection in water, which was surprisingly better than the performance of the individual membranes due to the strong interactions between the blended polymers. More interestingly, the same membrane demonstrated over five times higher flux of methanol after solvent activation with water as compared to the fluxes of the pure membranes, attributed to formation of nanocracks. High rejection of negatively charged dyes in this solvent with around 450 Da molecular weight cut-off was obtained at an exceptionally high flux of 160 Lm−2 h−1 at a pressure of 4.5 bar. The membranes will be beneficial in nanofiltration of polar solvents containing neutral and charged molecules.
AB - A unique method for the preparation of cellulose-polyethyleneimine (PEI) blend membranes for nanofiltration is presented. Trimethylsilyl cellulose was used as a precursor for the blend membrane fabrication followed by a simple hydrolysis to regenerate the cellulose structure. The resulting homogeneous blend membranes exhibited high neutral solute rejection in water, which was surprisingly better than the performance of the individual membranes due to the strong interactions between the blended polymers. More interestingly, the same membrane demonstrated over five times higher flux of methanol after solvent activation with water as compared to the fluxes of the pure membranes, attributed to formation of nanocracks. High rejection of negatively charged dyes in this solvent with around 450 Da molecular weight cut-off was obtained at an exceptionally high flux of 160 Lm−2 h−1 at a pressure of 4.5 bar. The membranes will be beneficial in nanofiltration of polar solvents containing neutral and charged molecules.
UR - http://www.scopus.com/inward/record.url?scp=85049746722&partnerID=8YFLogxK
U2 - 10.1016/j.memsci.2018.07.002
DO - 10.1016/j.memsci.2018.07.002
M3 - Article
AN - SCOPUS:85049746722
VL - 564
SP - 97
EP - 105
JO - Journal of membrane science
JF - Journal of membrane science
SN - 0376-7388
ER -