Issue 1, 2023

A bioinspired antibacterial and photothermal membrane for stable and durable clean water remediation

Abstract

Solar-driven steam generation has been considered as a prevalent and sustainable approach to obtain clean fresh water. However, the presence of microorganisms in seawater may cause the biofouling and degradation of polymeric photothermal materials and clog the channels for water transportation, leading to a decrease in solar evaporation efficiency during long-term usage. Herein, we have reported a facile strategy to construct a robust cellulose membrane device coated by tobramycin-doped polydopamine nanoparticles (PDA/TOB@CA). The PDA/TOB@CA membrane not only exhibited synergistic antibacterial behaviors with long-term and sustained antibiotic release profiles, but also achieved a high water evaporation rate of 1.61 kg m−2 h−1 as well as an evaporation efficiency of >90%. More importantly, the high antibacterial activity endowed the PDA/TOB@CA membrane with superb durability for stable reuse over 20 cycles, even in microbe-rich environments. Therefore, we envision that this study could pave a new pathway towards the design and fabrication of robust antibacterial and photothermal materials for long-term and stable clean water production.

Graphical abstract: A bioinspired antibacterial and photothermal membrane for stable and durable clean water remediation

Supplementary files

Article information

Article type
Communication
Submitted
16 Sept. 2022
Accepted
07 Nov. 2022
First published
08 Nov. 2022

Mater. Horiz., 2023,10, 268-276

A bioinspired antibacterial and photothermal membrane for stable and durable clean water remediation

Y. Yang, L. Yang, F. Yang, W. Bai, X. Zhang, H. Li, G. Duan, Y. Xu and Y. Li, Mater. Horiz., 2023, 10, 268 DOI: 10.1039/D2MH01151D

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