TY - JOUR
T1 - Bio-inspired Fabrication of Anti-fouling and Stability of Nanofiltration Membranes with a Poly(dopamine)/Graphene Oxide Interlayer
AU - Wang, Tao
AU - Wang, Jin
AU - Zhao, Zhenzhen
AU - Zheng, Xi
AU - Li, Jiding
AU - Liu, Helei
AU - Zhao, Zhiping
N1 - Publisher Copyright:
© 2021 American Chemical Society. All rights reserved.
PY - 2021/10/20
Y1 - 2021/10/20
N2 - In this present work, a facile approach of fabricating thin-film composite nanofiltration membranes was proposed by introducing a graphene oxide (GO)@poly(dopamine) (PDA) interlayer, which was conducted by dopamine self-polymerization and amino/acyl chloride interfacial polymerization. It could be found that the presence of a GO@PDA interlayer had a significant influence on the polyamide formation including polyamide topography, thickness, hydrophilicity, and separation performance. Under the optimum conditions, the designed membrane exhibited a pure water flux of 11.4 L·m-2·h-1·bar-1 (0.8 MPa, 25 °C) and high salt rejections of different salts with the order Na2SO4 (98.22%) > MgSO4 (97.76%) > MgCl2 (84.05%) > NaCl (66.99%). In addition, the modified membrane displayed excellent anti-fouling property and structural stability. As a summary of the finding in this work, it is expected to contribute a strategy on the fabrication of nanofiltration membrane with good performance, which will exhibit a high potential of industrial application.
AB - In this present work, a facile approach of fabricating thin-film composite nanofiltration membranes was proposed by introducing a graphene oxide (GO)@poly(dopamine) (PDA) interlayer, which was conducted by dopamine self-polymerization and amino/acyl chloride interfacial polymerization. It could be found that the presence of a GO@PDA interlayer had a significant influence on the polyamide formation including polyamide topography, thickness, hydrophilicity, and separation performance. Under the optimum conditions, the designed membrane exhibited a pure water flux of 11.4 L·m-2·h-1·bar-1 (0.8 MPa, 25 °C) and high salt rejections of different salts with the order Na2SO4 (98.22%) > MgSO4 (97.76%) > MgCl2 (84.05%) > NaCl (66.99%). In addition, the modified membrane displayed excellent anti-fouling property and structural stability. As a summary of the finding in this work, it is expected to contribute a strategy on the fabrication of nanofiltration membrane with good performance, which will exhibit a high potential of industrial application.
UR - http://www.scopus.com/inward/record.url?scp=85117496016&partnerID=8YFLogxK
U2 - 10.1021/acs.iecr.1c03105
DO - 10.1021/acs.iecr.1c03105
M3 - Article
AN - SCOPUS:85117496016
SN - 0888-5885
VL - 60
SP - 14868
EP - 14883
JO - Industrial and Engineering Chemistry Research
JF - Industrial and Engineering Chemistry Research
IS - 41
ER -