| Autor: |
Hu, Liu, Song, Xiyu, Li, Min, Xie, Kongliang, Hou, Aiqin |
| Předmět: |
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| Zdroj: |
Cellulose; May2023, Vol. 30 Issue 7, p4683-4696, 14p |
| Abstrakt: |
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. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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