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Vacuum-assisted multi-layer bacterial cellulose/polydopamine-modified Mxene film for joule heating, photo thermal, and humidity sensing

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Abstract

Multifunctional films have potential applications in smart wearable devices and portable electronic products. Yet, it is always a challenge to ensure these materials simultaneously to have flexible, strong, and functional properties during the material preparation process. Herein, bacterial cellulose/polydopamine modified by MXene (BC/PM) multi-layer films is prepared by vacuum-assisted self-assembly. The micromorphology, phase composition, and application performance of this composite film were systematically characterized. The mechanical properties test indicates that the BC/PM multi-layer film exhibits an excellent reinforcement effect. The tensile strength and elongation of the three-layer BC/PM film reach 181.6 MPa and 8.9%, respectively. For multifunctional applications, the BC/PM multi-layer film shows remarkable electric heating and excellent photothermal properties, for example, it can be heated up to 85 °C at a constant voltage of 6 V for 20 s, and its temperature can increase from room temperature to 90 ℃ after 250 W infrared lamp is irradiated for 30 s. Furthermore, the sample has potential high sensitivity and high response speed to humidity changes. This research will provide a data basis and theoretical reference for the practical application of bacterial cellulose-based multifunctional films.

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Funding

This study was funded by the National Natural Science Foundation of China (51903198), Key Research and Development Program of Shaanxi (No. S2022-YF-YBNY-0187), Scientific Research Program Funded by Shaanxi Provincial Education Department (20JY025), Innovation Capability Support Program of Shaanxi (2020TD-010), 2021 China National Textile and Apparel Council (CNTAC) Science and Technology Guidance Program (2021007).

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TZ and BS carried out the experiment as well as the test characterization. JY and BY provided assistance in conceiving experiments and analyzing data. JM conceived the idea and designed the experiments. All the authors have approved the final version of the manuscript.

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Correspondence to Jianhua Ma.

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The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

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Informed consent was obtained from all individual participants included in the study.

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Zhang, T., Song, B., Yang, J. et al. Vacuum-assisted multi-layer bacterial cellulose/polydopamine-modified Mxene film for joule heating, photo thermal, and humidity sensing. Cellulose 30, 4373–4385 (2023). https://doi.org/10.1007/s10570-023-05142-7

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  • DOI: https://doi.org/10.1007/s10570-023-05142-7

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