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Scalable fabrication of benzophenone/phthalocyanine-decorated photodynamic cotton fabrics for enhanced dye degradation and antibacterial performance

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Abstract

Cotton fabrics with photodynamic performance (BP/CuPc-R/F) were prepared via a facile method and used as an effective photocatalytic system for wastewater treatment in this work. C.I. Reactive Blue 21 (a copper phthalocyanine derivative) and one kind of 3,3′,4,4′-benzophenone derivative (BPTCA) were covalently grafted onto cotton fabrics via conventional dyeing and finishing processes. The resultant photosensitive material (BP/CuPc-R/F) exhibited excellent hydroxyl-radical-generating activity under UVA light. Density functional theory calculation was used to investigate the photosensitizing mechanism and synergistic effect of copper phthalocyanine and benzophenone groups. BP/CuPc-R/F showed a stable activity in the decomposition of C.I. Reactive Black 5, and the degradation rate can still reach above 80% after 4 cycles. The degradation efficiency was enhanced in the condition of alkaline and high temperature (99% degradation at 45 °C in 10 min exposure). Furthermore, it also showed photo-induced antibacterial activity toward Staphylococcus aureus with bacterial reduction rate of 99.99% after 60 min of UVA light illumination. The photosensitive textile provides a facile and efficient approach for the removal of hazardous pollutants and microorganisms in water treatment.

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Funding

This work was supported by National Natural Science Foundation of China (Grant No. 22208310); Opening Project of Key Laboratory of Clean Dyeing and Finishing Technology of Zhejiang Province (Grant No. QJRZ2202 and QJRZ2204); Research Start-up Funding of Zhejiang Sci-Tech University (Grant No. 21202301-Y); and Postdoctoral Fellowship of Zhejiang Province (Grant No. ZJ2021109).

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LH: Methodology, Software, Investigation, Writing-Original Draft, Funding acquisition; ML: Methodology, Project administration, Funding acquisition; XS: Software, Data curation; KX: Writing-Review & Editing, Data Curation; AH: Methodology, Writing—Review & Editing, Resources.

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Correspondence to Liu Hu or Min Li.

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

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Hu, L., Song, X., Li, M. et al. Scalable fabrication of benzophenone/phthalocyanine-decorated photodynamic cotton fabrics for enhanced dye degradation and antibacterial performance. Cellulose 30, 4683–4696 (2023). https://doi.org/10.1007/s10570-023-05141-8

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  • DOI: https://doi.org/10.1007/s10570-023-05141-8

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