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Construction of a g-C 3 N 4 /Bi(OH) 3 Heterojunction for the Enhancement of Visible Light Photocatalytic Antibacterial Activity.
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- المؤلفون: Feng, Jian1 (AUTHOR) ; Wang, Li1 (AUTHOR) ; Xiao, Bo1 (AUTHOR) ; Ran, Xia1 (AUTHOR) ; Wang, Caiying1 (AUTHOR) ; Zhu, Jinming1 (AUTHOR) ; Liu, Zuoji1 (AUTHOR) ; Li, Chaozhong1 (AUTHOR) ; Cui, Xinai1 (AUTHOR) ; Li, Rong1 (AUTHOR) ; Feng, Guangwei1 (AUTHOR); Dai, Zeqin2 (AUTHOR)
- المصدر:
International Journal of Molecular Sciences. Feb2024, Vol. 25 Issue 3, p1872. 16p.
- الموضوع:
- معلومة اضافية
- نبذة مختصرة :
Photocatalytic technology has been recently conducted to remove microbial contamination due to its unique features of nontoxic by-products, low cost, negligible microbial resistance and broad-spectrum elimination capacity. Herein, a novel two dimensional (2D) g-C3N4/Bi(OH)3 (CNB) heterojunction was fabricated byincorporating Bi(OH)3 (BOH) nanoparticles with g-C3N4 (CN) nanosheets. This CNB heterojunction exhibited high photocatalytic antibacterial efficiency (99.3%) against Escherichia coli (E. coli) under visible light irradiation, which was 4.3 and 3.4 times that of BOH (23.0%) and CN (28.0%), respectively. The increase in specific surface area, ultra-thin layered structure, construction of a heterojunction and enhancement of visible light absorption were conducive to facilitating the separation and transfer of photoinduced charge carriers. Live/dead cell staining, sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) assays and scanning electron microscopy (SEM) have been implemented to investigate the damage to the cell membrane and the leakage of the intracellular protein in the photocatalytic antibacterial process. The e−, h+ and O2•− were the active species involved in this process. This study proposed an appropriate photocatalyst for efficient treatment of bacterial contamination. [ABSTRACT FROM AUTHOR]
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