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Erschienen in: Cellulose 13/2020

04.07.2020 | Original Research

Ag@AgCl nanoparticles in-situ deposited cellulose acetate/silk fibroin composite film for photocatalytic and antibacterial applications

verfasst von: Xiaohong Wang, Yuguang Sui, Jian Jian, Zhengqiu Yuan, Jianxian Zeng, Lei Zhang, Taofen Wang, Hu Zhou

Erschienen in: Cellulose | Ausgabe 13/2020

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Abstract

In this paper, non-solvent-induced phase separation and in situ deposition are applied to prepare a multifunctional Ag@AgCl-cellulose acetate/silk fibroin (Ag@AgCl-CA/SF) composite film. The CA/SF film is employed as an eco-friendly substrate that provides sites for Ag@AgCl nanoparticle (NP) in situ deposition. The films are characterized using various analytical methods. The photocatalytic activity of the films is evaluated via the decomposition of methyl orange (MO) under visible light. The results indicate that the Ag@AgCl-CA/SF film exhibits higher photocatalytic activity than the Ag-CA/SF film and that the reaction rate constant of MO decomposition photocatalyzed by Ag@AgCl-CA/SF is approximately 10.3 times that of Ag-CA/SF. Meanwhile, a possible photocatalytic mechanism over the Ag@Ag-CA/SF film is presented based on theoretical analysis and active species trapping experiments. Furthermore, films with silver atom and silver ion deposition exhibit good antibacterial activity against E. coli and S. aureus. This research may provide new insight into the construction of a multifunctional film reactor for organic pollutant degradation and bacterial inactivation.

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Metadaten
Titel
Ag@AgCl nanoparticles in-situ deposited cellulose acetate/silk fibroin composite film for photocatalytic and antibacterial applications
verfasst von
Xiaohong Wang
Yuguang Sui
Jian Jian
Zhengqiu Yuan
Jianxian Zeng
Lei Zhang
Taofen Wang
Hu Zhou
Publikationsdatum
04.07.2020
Verlag
Springer Netherlands
Erschienen in
Cellulose / Ausgabe 13/2020
Print ISSN: 0969-0239
Elektronische ISSN: 1572-882X
DOI
https://doi.org/10.1007/s10570-020-03321-4

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