基于摩擦纳米发电机的微塑料实时检测实验研究

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Abstract This paper proposes a real-time and rapid detection method and device for detecting the size and abundance of microplastic particles by discontinuous liquid column, using the TENG technology based on self-powered. Through experimental tests, the size and morphology characterization of microplastics and the real-time and efficient detection of chemical element composition are completed. The study deduces that, when the micro-plastic particles are added into the deionized water, the Zeta potential in the solution is reduced, and the direction of the polarization of the electric field on the surface of the pipe wall is changed. In addition, with the increase of the diameter or abundance of microplastic particles in the aqueous solution, the output voltages show a decreasing trend. The output voltages is reduced by 43.1% at 50 μm and by 79.6% at 0.250%. Moreover, the micro-plastic particles have a significant impact on the output voltages of tap water. Considering 10 μm microplastic particles as example, the output voltages are reduced by 20%. This proves the feasibility of the TENG technology for the detection of marine microplastics.

Key words： marine microplastics triboelectric nanogenerator (TENG) polarized electric field particle size detection abundance detection

Received: 13 October 2021

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X55

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	XIANG Qin
	LONG Wei
	FENG Lang
	LI Meng

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XIANG Qin,LONG Wei,FENG Lang等. Real-time detection and experimental study of microplastics based on friction nanogenerator[J]. CHINA ENVIRONMENTAL SCIENCECE, 2022, 42(5): 2275-2282.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2022/V42/I5/2275

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