TY - JOUR

T1 - Polyamide Nanofilms through a Non-Isothermal-Controlled Interfacial Polymerization

AU - Zhao, Guang Jin

AU - Li, Lu Lu

AU - Gao, Hai Qi

AU - Zhao, Zhi Jian

AU - Pang, Zi Fan

AU - Pei, Chun Lei

AU - Qu, Zhou

AU - Dong, Liang Liang

AU - Rao, De Wei

AU - Caro, Jürgen

AU - Meng, Hong

N1 - Funding Information: This work was financially supported by the National Key Research and Development Program of China (2022YFB3804802) and National Natural Science Foundation of China (No. 22278178) and the Fundamental Research Funds for the Central Universities (JUSRP622035).

PY - 2024/5/2

Y1 - 2024/5/2

N2 - Efficient thin film composite polyamide (PA) membranes require optimization of interfacial polymerization (IP) process. However, it is challengeable owing to its ultrafast reaction rate coupled with mass and heat transfer, yielding heterogeneous PA membranes with low performance. Herein, a non-isothermal-controlled IP (NIIP) method is proposed to fabricate a highly permeable and selective PA membrane by engineering IP at the cryogenic aqueous phase (CAP) to achieve synchronous control of heat and mass transfer in the interfacial region. The CAP also enables the phase transition of the aqueous solution from the liquid to solid state, providing a more comprehensive understanding of the fundamental mechanisms involved in different phase states in the IP process. Consequently, the PA membrane exhibits excellent separation performance with ultrahigh water permeance (42.9 L m−2 h−1 bar−1) and antibiotic desalination efficiency (antibiotic/NaCl selectivity of 159.3). This study provides new insights for the in-depth understanding of the precise mechanism linking IP to the performance of the targeting membrane.

AB - Efficient thin film composite polyamide (PA) membranes require optimization of interfacial polymerization (IP) process. However, it is challengeable owing to its ultrafast reaction rate coupled with mass and heat transfer, yielding heterogeneous PA membranes with low performance. Herein, a non-isothermal-controlled IP (NIIP) method is proposed to fabricate a highly permeable and selective PA membrane by engineering IP at the cryogenic aqueous phase (CAP) to achieve synchronous control of heat and mass transfer in the interfacial region. The CAP also enables the phase transition of the aqueous solution from the liquid to solid state, providing a more comprehensive understanding of the fundamental mechanisms involved in different phase states in the IP process. Consequently, the PA membrane exhibits excellent separation performance with ultrahigh water permeance (42.9 L m−2 h−1 bar−1) and antibiotic desalination efficiency (antibiotic/NaCl selectivity of 159.3). This study provides new insights for the in-depth understanding of the precise mechanism linking IP to the performance of the targeting membrane.

KW - antibiotic desalination

KW - interfacial polymerization

KW - membrane separation

KW - nanofiltration

KW - polyamide

UR - http://www.scopus.com/inward/record.url?scp=85182718850&partnerID=8YFLogxK

U2 - 10.1002/adfm.202313026

DO - 10.1002/adfm.202313026

M3 - Article

AN - SCOPUS:85182718850

VL - 34

JO - Advanced functional materials

JF - Advanced functional materials

SN - 1616-301X

IS - 18

M1 - 2313026

ER -