Two dimensional MoS2 finding its way towards constructing high-performance alkaline recovery membranes
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Two dimensional MoS2 finding its way towards constructing high-performance alkaline recovery membranes
Two dimensional MoS2 finding its way towards constructing high-performance alkaline recovery membranes
中国化学工程学报(英文版)2023年60卷第8期 页码:155-164
Affiliations:
Anhui Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology,Anhui,China,230009
Author bio:
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DOI:
中图分类号:
纸质出版:2023
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Xinxin Li, Hongwei Shao, Shichao Zhang, 等. Two dimensional MoS2 finding its way towards constructing high-performance alkaline recovery membranes[J]. 中国化学工程学报(英文版), 2023,60(8):155-164.
finding its way towards constructing high-performance alkaline recovery membranes[J]. 中国化学工程学报, 2023, 60(8): 155-164.
Xinxin Li, Hongwei Shao, Shichao Zhang, 等. Two dimensional MoS2 finding its way towards constructing high-performance alkaline recovery membranes[J]. 中国化学工程学报(英文版), 2023,60(8):155-164.DOI:
finding its way towards constructing high-performance alkaline recovery membranes[J]. 中国化学工程学报, 2023, 60(8): 155-164.DOI:
Two dimensional MoS2 finding its way towards constructing high-performance alkaline recovery membranes
The available alkaline recovery membranes are currently dominated by polymeric materials
but they suffer from a permeation-selectivity trade-off and inferior chemical resistance. Robust two dimensional (2D) lamellar membranes with sub-nanometer wide channels are promising candidates for discerning OH
-
and other anions. Here
we report the development of alkaline recycling membranes through stacking MoS
2
nanosheets. Benefiting from the ordered and narrow 2D channels
MoS
2
membranes show excellent alkaline recovery performances. The OH
-
dialysis coefficient () and separation factor (
S
) towards simulated OH
-
and across the 500 nm thick MoS
2
laminates reach 6.9×10
-3
m·h
-1
and 34.3 respectively. Furthermore
the chemical environments of MoS
2
laminates were modulated by intercalating ionic poly(sodium 4-styrene sulfonate) (PSS@MoS
2
). The and
S
values of PSS@MoS
2
membrane further improve to 11.7×10
-3
m·h
-1
and 49.8 respectively. Besides
both MoS
2
and PSS@MoS
2
membranes exhibit promising stability.
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