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.
|Publication status||Accepted/In press - 2022|
Bibliographical noteFunding Information:
This work was financially supported by the National Key R&D Program of China (Grant 2022YFC3205400, Z.-Y.H.), the National Natural Science Foundation of China (Grant 52200079, Z.-Y.H.), and the Basic Science Research Program (Research Leader Program, Grant 2022R1A3B1078291, S.-W.K.) through the National Research Foundation of Korea (NRF) funded by the Korean government (MSIT).
© 2023 American Chemical Society.
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics
- Mechanical Engineering