ACS_Nano Letters


ACS_Nano Letters

April 12, 2023

Volume 23, Issue 7

Pages 2443-3106

Self-Powered Disinfection Using Triboelectric, Conductive Wires of Metal–Organic Frameworks

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.

  • Zheng-Yang Huo
  • Yuxin Yang
  • Jang-Mook Jeong
  • Xiaoxiong Wang
  • He Zhang
  • Mingdeng Wei
  • Keren Dai
  • Peixun Xiong
  • Sang-Woo Kim

Image created by minjeong Kim / Nanosphere