Abstract
A novel fouling-resistant nanofiltration mixed-matrix membrane was obtained by the incorporation of 2D boron nitride nanosheets (BNNS) in polyethersulfone (PES). The addition of just 0.05 wt% of BNNS into the PES matrix led to a 4-fold increase in pure water permeance with a 10% decrease in the rejection of the dye Rose Bengal; up to 95% rejection of humic acid and nearly 100% flux recovery over two cycles in cross-flow fouling tests without the need for chemical cleansing. This performance is attributed to the uniform distribution of the BNNS in the PES matrix, observed via Raman mapping, and the surface chemistry and structure of the BNNS, which hydrophilised the polymer matrix and reduced its surface roughness. The low amount of BNNS filler needed to render the mixed-matrix membrane fouling-resistant opens the way to its use in waste-water treatment applications where organic fouling remains a major challenge.
| Original language | English |
|---|---|
| Pages (from-to) | 949-956 |
| Number of pages | 8 |
| Journal | Journal of Membrane Science |
| Volume | 563 |
| Early online date | 3 Jul 2018 |
| DOIs | |
| Publication status | Published - 1 Oct 2018 |
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Keywords
- Boron nitride nanosheets
- Fouling
- Nanofiltration
- PES
ASJC Scopus subject areas
- Biochemistry
- Materials Science(all)
- Physical and Theoretical Chemistry
- Filtration and Separation
Cite this
Fouling resistant 2D boron nitride nanosheet – PES nanofiltration membranes. / Low, Ze Xian; Ji, Jing; Blumenstock, David; Chew, Yong Min; Wolverson, Daniel; Mattia, Davide.
In: Journal of Membrane Science, Vol. 563, 01.10.2018, p. 949-956.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Fouling resistant 2D boron nitride nanosheet – PES nanofiltration membranes
AU - Low, Ze Xian
AU - Ji, Jing
AU - Blumenstock, David
AU - Chew, Yong Min
AU - Wolverson, Daniel
AU - Mattia, Davide
PY - 2018/10/1
Y1 - 2018/10/1
N2 - A novel fouling-resistant nanofiltration mixed-matrix membrane was obtained by the incorporation of 2D boron nitride nanosheets (BNNS) in polyethersulfone (PES). The addition of just 0.05 wt% of BNNS into the PES matrix led to a 4-fold increase in pure water permeance with a 10% decrease in the rejection of the dye Rose Bengal; up to 95% rejection of humic acid and nearly 100% flux recovery over two cycles in cross-flow fouling tests without the need for chemical cleansing. This performance is attributed to the uniform distribution of the BNNS in the PES matrix, observed via Raman mapping, and the surface chemistry and structure of the BNNS, which hydrophilised the polymer matrix and reduced its surface roughness. The low amount of BNNS filler needed to render the mixed-matrix membrane fouling-resistant opens the way to its use in waste-water treatment applications where organic fouling remains a major challenge.
AB - A novel fouling-resistant nanofiltration mixed-matrix membrane was obtained by the incorporation of 2D boron nitride nanosheets (BNNS) in polyethersulfone (PES). The addition of just 0.05 wt% of BNNS into the PES matrix led to a 4-fold increase in pure water permeance with a 10% decrease in the rejection of the dye Rose Bengal; up to 95% rejection of humic acid and nearly 100% flux recovery over two cycles in cross-flow fouling tests without the need for chemical cleansing. This performance is attributed to the uniform distribution of the BNNS in the PES matrix, observed via Raman mapping, and the surface chemistry and structure of the BNNS, which hydrophilised the polymer matrix and reduced its surface roughness. The low amount of BNNS filler needed to render the mixed-matrix membrane fouling-resistant opens the way to its use in waste-water treatment applications where organic fouling remains a major challenge.
KW - Boron nitride nanosheets
KW - Fouling
KW - Nanofiltration
KW - PES
UR - http://www.scopus.com/inward/record.url?scp=85049489824&partnerID=8YFLogxK
U2 - 10.1016/j.memsci.2018.07.003
DO - 10.1016/j.memsci.2018.07.003
M3 - Article
VL - 563
SP - 949
EP - 956
JO - Journal of Membrane Science
JF - Journal of Membrane Science
SN - 0376-7388
ER -