摩擦电效应
生物污染
材料科学
结垢
纳米发生器
灭菌(经济)
紫外线
纳米技术
复合材料
光电子学
化学
膜
外汇
货币经济学
外汇市场
经济
压电
生物化学
作者
Junhuan Chen,Peng Wang,Jiawei Li,Congyu Wang,Junlei Wang,Dun Zhang,Yating Peng,Baocheng Wang,Zhiyi Wu
出处
期刊:Nano Energy
[Elsevier]
日期:2022-05-01
卷期号:95: 106969-106969
被引量:15
标识
DOI:10.1016/j.nanoen.2022.106969
摘要
Microbial fouling and the resulting corrosion in marine environment cause severe economic and safety problems. It is urgent to develop feasible and efficient methods for controlling marine microbial fouling. In this study, the self-powered antifouling ultraviolet C (UVC) pipeline sterilizer was developed based on modified freestanding rotary triboelectric nanogenerator (MFR-TENG) with the function of discharge stimuli. Taking the advantage of breakdown discharge stimuli, the output voltage of the MFR-TENG is up to 6.9 kV, which is about 3-fold higher than the case in the absence of discharge stimuli (2.4 kV). This MFR-TENG provides sufficient energy for mercury vapor to generate ultraviolet radiation. The sterilization experiments demonstrate the self-powered antifouling UVC pipeline sterilizer exhibits superior antimicrobial ability against typical corrosive bacteria, including Halomonas titanicae, Pseudomonas aeruginosa, and miscellaneous bacteria cultured in raw seawater. Further investigation on morphological change of bacterium demonstrates the UVC radiation excited by discharge stimuli cause significant damage to the bacterial membrane. As a result, the antibacterial rate of the self-powered antifouling UVC pipeline sterilizer (75%) is higher as compared with that without discharge phenomenon (44%) after 10 min of sterilization. This study offers an eco-friendly and efficient strategy for preventing marine microbial fouling.
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