摩擦电效应
过氧化氢
纳米技术
材料科学
导电体
水消毒
电
水流
环境科学
化学
环境工程
电气工程
复合材料
有机化学
工程类
作者
Zheng‐Yang Huo,Yizhuo Yang,Jang‐Mook Jeong,Xiaoxiong Wang,He Zhang,Mingdeng Wei,Keren Dai,Peixun Xiong,Sang Woo Kim
出处
期刊:Nano Letters
[American Chemical Society]
日期:2023-02-20
卷期号:23 (7): 3090-3097
被引量:12
标识
DOI:10.1021/acs.nanolett.2c04391
摘要
Efficient water disinfection is vitally needed in rural and disaster-stricken areas lacking power supplies. However, conventional water disinfection methods strongly rely on external chemical input and reliable electricity. Herein, we present a self-powered water disinfection system using synergistic hydrogen peroxide (H2O2) assisted electroporation mechanisms driven by triboelectric nanogenerators (TENGs) that harvest electricity from the flow of water. The flow-driven TENG, assisted by power management systems, generates a controlled output with aimed voltages to drive a conductive metal-organic framework nanowire array for effective H2O2 generation and electroporation. The injured bacteria caused by electroporation can be further damaged by facile diffused H2O2 molecules at high throughput. A self-powered disinfection prototype enables complete disinfection (>99.9999% removal) over a wide range of flows up to 3.0 × 104 L/(m2 h) with low water flow thresholds (200 mL/min; ∼20 rpm). This rapid, self-powered water disinfection method is promising for pathogen control.
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