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author:

Liu, R. (Liu, R..) [1] | Du, J. (Du, J..) [2] | Chen, Q. (Chen, Q..) [3] | Zhao, R. (Zhao, R..) [4] | Yu, F. (Yu, F..) [5] | Simoens, K. (Simoens, K..) [6] | Volodin, A. (Volodin, A..) [7] | Luis, P. (Luis, P..) [8] | Ye, W. (Ye, W..) [9] | Dewil, R. (Dewil, R..) [10] | Xie, M. (Xie, M..) [11] | Lin, J. (Lin, J..) [12] | Van, der, Bruggen, B. (Van, der, Bruggen, B..) [13]

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Scopus

Abstract:

The development of tight ultrafiltration membranes has opened new avenues for the fractionation of organics and inorganic salts from highly saline organic-rich wastewaters, showing great potential as alternatives to nanofiltration membranes for the sustainable recovery of high value-added products. In this work, polypeptide-based antimicrobial tight-ultrafiltration membranes were developed through the interfacial polymerization of ε-polylysine (ε-pl) and trimesoyl chloride (TMC) on porous ultrafiltration substrates for the sustainable management of highly saline textile wastewater. Systematic characterization was conducted to demonstrate the formation of continuous, thin and smooth ε-pl/TMC cross-linked networks. The designed tight ε-pl/TMC composite ultrafiltration membrane with a MWCO of 3185 Da showed exceptional dye/salt fractionation performance in highly saline textile wastewater, achieving >99.80 % rejection for various dyes (0.2 g L−1 direct red 80, reactive black 5 or reactive blue 2) and a <3.35 % salt rejection (20.0 g L−1 NaCl), with favorable water permeation (39.13–44.46 L m−2 h−1·bar−1). In addition, the long-term stability of the polypeptide-based tight ultrafiltration membrane was confirmed to be sufficient for enduring dye/salt separation. Furthermore, the intercalation of ε-polylysine onto the membrane surface strongly enhanced the antibacterial activity (i.e., 99.97 % bacterial inhibition) of the tight ultrafiltration membranes. This competitive performance highlights the potential of tight ε-pl/TMC composite ultrafiltration membranes for the sustainable management of highly saline organic wastewater. © 2025

Keyword:

Antibacterial activity Highly saline textile wastewater Interfacial polymerization Tight ultrafiltration membranes ε-polylysine

Community:

  • [ 1 ] [Liu R.]Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200F, Leuven, B-3001, Belgium
  • [ 2 ] [Du J.]Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200F, Leuven, B-3001, Belgium
  • [ 3 ] [Chen Q.]Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200F, Leuven, B-3001, Belgium
  • [ 4 ] [Zhao R.]Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200F, Leuven, B-3001, Belgium
  • [ 5 ] [Yu F.]College of Environment and Safety Engineering, Fuzhou University, Fuzhou, 350116, China
  • [ 6 ] [Simoens K.]Chemical and Biochemical Reactor Engineering and Safety, KU Leuven, Celestijnenlaan 200F, Leuven, B-3001, Belgium
  • [ 7 ] [Volodin A.]Department of Physics and Astronomy, KU Leuven, Celestijnenlaan 200 D, Leuven, B-3001, Belgium
  • [ 8 ] [Luis P.]Materials & Process Engineering (iMMC-IMAP), Université Catholique de Louvain, Place Sainte Barbe 2, Louvain-la-Neuve, 1348, Belgium
  • [ 9 ] [Ye W.]Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200F, Leuven, B-3001, Belgium
  • [ 10 ] [Ye W.]Jiangxi Provincial Key Laboratory of Water Ecological Conservation at Headwater Regions, Jiangxi University of Science and Technology, 1958 Ke-jia Road, Ganzhou, 341000, China
  • [ 11 ] [Dewil R.]Department of Chemical Engineering, Process and Environmental Technology Lab, KU Leuven, J. De Nayerlaan 5, Sint-Katelijne-Waver, 2860, Belgium
  • [ 12 ] [Dewil R.]Department of Engineering Science, University of Oxford, Oxford, OX1 3PJ, United Kingdom
  • [ 13 ] [Xie M.]Department of Chemical Engineering, University of Bath, Bath, BA2 7AY, United Kingdom
  • [ 14 ] [Lin J.]Key Laboratory of Rare Earths, Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou, 341000, China
  • [ 15 ] [Van der Bruggen B.]Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200F, Leuven, B-3001, Belgium

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Source :

Journal of Membrane Science

ISSN: 0376-7388

Year: 2025

Volume: 720

8 . 4 0 0

JCR@2023

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 1

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 3

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