A novel ceramic-based thin-film composite nanofiltration membrane with enhanced performance and regeneration potential

Daliang Xu; Xinsheng Luo; Pengrui Jin; Junyong Zhu; Xin Zhang; Junfeng Zheng; Liu Yang; Xuewu Zhu; Heng Liang; Bart Van der Bruggen

doi:10.1016/j.watres.2022.118264

A novel ceramic-based thin-film composite nanofiltration membrane with enhanced performance and regeneration potential

Daliang Xu, Xinsheng Luo, Pengrui Jin, Junyong Zhu, Xin Zhang, Junfeng Zheng, Liu Yang, Xuewu Zhu, Heng Liang, Bart Van der Bruggen

Research output: Contribution to journal › Article › peer-review

44 Citations (SciVal)

Abstract

The rational design of a ceramic-based nanofiltration membrane remains a significant challenge due to its performance and fabrication cost. Herein, we report a high-performance ceramic-based thin-film composite (TFC) membrane fabricated via a typical interfacial polymerization on an interwoven net substrate assembled by titanium dioxide (TiO₂) nanowires. The chemical properties and morphologies were systematically investigated for ceramic substrates and their corresponding TFC membranes. Due to the significantly improved hydrophilicity of the TiO₂ framework, more reactive amine monomers were uniformly adsorbed on the modified surface of the ceramic substrate, yielding an ultrathin polyamide layer with less resistance. In addition, the smooth surface and decreased pore size of the TiO₂ framework contributed to forming a defect-free polyamide layer. As a result, the obtained ceramic-based TFC membrane evinced high permeance of 26.4 L m⁻² h⁻¹ bar⁻¹ and excellent salt rejection efficiency, leading to simultaneous improvements compared with the control TFC membrane without the TiO₂ framework. Notably, the potential regeneration ability of the ceramic-based TFC membrane could be achieved via facile low-temperature calcination and re-polymerization process due to the varied thermostability between the polyamide layer and the robust ceramic substrate. The operation of regeneration helped to prolong the lifetime and decrease the cost for the ceramic-based TFC membrane. This research provides a feasible protocol to fabricate sustainable ceramic-based nanofiltration membranes with enhanced performance for water treatment.

Original language	English
Article number	118264
Number of pages	10
Journal	Water Research
Volume	215
Early online date	8 Mar 2022
DOIs	https://doi.org/10.1016/j.watres.2022.118264
Publication status	Published - 15 May 2022

Bibliographical note

Publisher Copyright:
© 2022 Elsevier Ltd

Acknowledgements

This research was jointly supported by the National Natural Science Foundation of China (51978198), State Key Laboratory of Urban Water Resource and Environment (2019DX01) and Fundamental Research Funds for the Central Universities. The first author also thanks the China Scholarship Council (CSC) for providing the living cost during his study at KU Leuven.

Keywords

Ceramic membrane
High water permeance
Nanofiltration
Regeneration
TiO nanowire

ASJC Scopus subject areas

Environmental Engineering
Civil and Structural Engineering
Ecological Modelling
Water Science and Technology
Waste Management and Disposal
Pollution

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10.1016/j.watres.2022.118264

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abstract = "The rational design of a ceramic-based nanofiltration membrane remains a significant challenge due to its performance and fabrication cost. Herein, we report a high-performance ceramic-based thin-film composite (TFC) membrane fabricated via a typical interfacial polymerization on an interwoven net substrate assembled by titanium dioxide (TiO2) nanowires. The chemical properties and morphologies were systematically investigated for ceramic substrates and their corresponding TFC membranes. Due to the significantly improved hydrophilicity of the TiO2 framework, more reactive amine monomers were uniformly adsorbed on the modified surface of the ceramic substrate, yielding an ultrathin polyamide layer with less resistance. In addition, the smooth surface and decreased pore size of the TiO2 framework contributed to forming a defect-free polyamide layer. As a result, the obtained ceramic-based TFC membrane evinced high permeance of 26.4 L m−2 h−1 bar−1 and excellent salt rejection efficiency, leading to simultaneous improvements compared with the control TFC membrane without the TiO2 framework. Notably, the potential regeneration ability of the ceramic-based TFC membrane could be achieved via facile low-temperature calcination and re-polymerization process due to the varied thermostability between the polyamide layer and the robust ceramic substrate. The operation of regeneration helped to prolong the lifetime and decrease the cost for the ceramic-based TFC membrane. This research provides a feasible protocol to fabricate sustainable ceramic-based nanofiltration membranes with enhanced performance for water treatment.",

keywords = "Ceramic membrane, High water permeance, Nanofiltration, Regeneration, TiO nanowire",

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AU - Zhang, Xin

AU - Zheng, Junfeng

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AB - The rational design of a ceramic-based nanofiltration membrane remains a significant challenge due to its performance and fabrication cost. Herein, we report a high-performance ceramic-based thin-film composite (TFC) membrane fabricated via a typical interfacial polymerization on an interwoven net substrate assembled by titanium dioxide (TiO2) nanowires. The chemical properties and morphologies were systematically investigated for ceramic substrates and their corresponding TFC membranes. Due to the significantly improved hydrophilicity of the TiO2 framework, more reactive amine monomers were uniformly adsorbed on the modified surface of the ceramic substrate, yielding an ultrathin polyamide layer with less resistance. In addition, the smooth surface and decreased pore size of the TiO2 framework contributed to forming a defect-free polyamide layer. As a result, the obtained ceramic-based TFC membrane evinced high permeance of 26.4 L m−2 h−1 bar−1 and excellent salt rejection efficiency, leading to simultaneous improvements compared with the control TFC membrane without the TiO2 framework. Notably, the potential regeneration ability of the ceramic-based TFC membrane could be achieved via facile low-temperature calcination and re-polymerization process due to the varied thermostability between the polyamide layer and the robust ceramic substrate. The operation of regeneration helped to prolong the lifetime and decrease the cost for the ceramic-based TFC membrane. This research provides a feasible protocol to fabricate sustainable ceramic-based nanofiltration membranes with enhanced performance for water treatment.

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A novel ceramic-based thin-film composite nanofiltration membrane with enhanced performance and regeneration potential

Abstract

Bibliographical note

Acknowledgements

Keywords

ASJC Scopus subject areas

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