TY - JOUR
T1 - Thermostable nanofiltration membranes enabling superior hot wastewater purification
AU - Huang, Junhui
AU - Zhang, Yanqiu
AU - Guo, Jing
AU - Yang, Zhen
AU - Bai, Yongping
AU - Gao, Gang
AU - Zhu, Jiaqi
AU - Mamba, Bhekie B.
AU - Wang, Huanting
AU - Shao, Lu
N1 - Publisher Copyright:
© 2024 Elsevier B.V.
PY - 2024/11
Y1 - 2024/11
N2 - Emerging nanofiltration (NF) separation technology for precision ionic/molecular separation at the nanoscale, which has the advantages of energy conservation, excellent separation and a small footprint, is promising for obtaining sustainable water resources via efficient water treatment and recycling. However, traditional NF membranes are restricted to applications at approximately room temperature because of the sharp deterioration in stability induced by the fragility of the nanopore structure at higher temperatures. Herein, we synthesized an unparalleled nanofiltration (NF) membrane with superior thermal stability up to 90 °C and finely tailored nanopores with 0.3–1.1 nm, via de novo carbon skeleton-mediated polymerization (CSMP). Molecular thermodynamics simulations and experiments demonstrated that C–C skeletons can manipulate the stability of the intrinsic structure and intermolecular gap size, contributing to exceptionally thermostable and well-tailored nanopores. The synthesized membrane exhibited excellent long-term water permeance and high rejection of (sub)nanoscale contaminant molecules at high temperatures, which is far superior to the performance of currently available NF membranes.
AB - Emerging nanofiltration (NF) separation technology for precision ionic/molecular separation at the nanoscale, which has the advantages of energy conservation, excellent separation and a small footprint, is promising for obtaining sustainable water resources via efficient water treatment and recycling. However, traditional NF membranes are restricted to applications at approximately room temperature because of the sharp deterioration in stability induced by the fragility of the nanopore structure at higher temperatures. Herein, we synthesized an unparalleled nanofiltration (NF) membrane with superior thermal stability up to 90 °C and finely tailored nanopores with 0.3–1.1 nm, via de novo carbon skeleton-mediated polymerization (CSMP). Molecular thermodynamics simulations and experiments demonstrated that C–C skeletons can manipulate the stability of the intrinsic structure and intermolecular gap size, contributing to exceptionally thermostable and well-tailored nanopores. The synthesized membrane exhibited excellent long-term water permeance and high rejection of (sub)nanoscale contaminant molecules at high temperatures, which is far superior to the performance of currently available NF membranes.
KW - Carbon skeleton-mediated polymerization
KW - Hot wastewater treatment
KW - Nanofiltration membranes
KW - Precision sieving
KW - Thermostable nanopores
UR - http://www.scopus.com/inward/record.url?scp=85201433643&partnerID=8YFLogxK
U2 - 10.1016/j.memsci.2024.123216
DO - 10.1016/j.memsci.2024.123216
M3 - Article
AN - SCOPUS:85201433643
SN - 1873-3123
VL - 711
JO - Journal of Membrane Science
JF - Journal of Membrane Science
M1 - 123216
ER -