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Porous g-C3N4 tubes in-situ anchored by waste biomass-derived carbon dots for photocatalytic reduction of sunset yellow and Escherichia coli in juice.

Porous g-C3N4 tubes in-situ anchored by waste biomass-derived carbon dots for photocatalytic reduction of sunset yellow and Escherichia coli in juice.

Authors :
Li, Shisen
Liu, Ping
Wang, Yinghui
Li, Yue
Ren, Yanting
Yang, Qingli
Ma, Yongchao
Source :
Applied Surface Science. Feb2025, Vol. 682, pN.PAG-N.PAG. 1p.
Publication Year :
2025

Abstract

[Display omitted] • Waste biomass-derived CDs in-situ anchored porous g-C 3 N 4 tubes were prepared. • CDs facilitate the separation and transfer of photogenerated carriers. • CSTCN showed enhanced SY degradation and sterilization activity under visible light. • CSTCN alginate sponge can remove SY and E. coli from fruit juice simultaneously. Chemical hazardous substances and hazardous pathogenic bacteria pose a serious risk to human health. The development of efficient, safe and simple removal technologies is urgent. In this study, waste biomass derived carbon dots in-situ anchored porous g-C 3 N 4 tubes were prepared by supramolecular self-assembly method. The prepared photocatalyst exhibited enhanced light absorption, large surface area, and abundant reactive sites. Photoelectrochemical analyses confirmed that the introduction of CDs could effectively promote the separation and transfer of photogenerated carriers with enhanced degradation of sunset yellow (95.4 %) and inactivation of Escherichia coli (98.3 %) under visible light. Furthermore, the development of g-C 3 N 4 loaded floatable porous alginate sponges for the simultaneous removal of E. coli and sunset yellow from fruit juices, obtaining efficient purification results and satisfactory overall acceptability. This work provides a feasible pathway for photocatalytic decontamination of contaminated liquid food. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
01694332
Volume :
682
Database :
Academic Search Index
Journal :
Applied Surface Science
Publication Type :
Academic Journal
Accession number :
181059081
Full Text :
https://doi.org/10.1016/j.apsusc.2024.161584