Regulating Contact Electrification and Charge Retention Capability With Metal–Organic Frameworks in Triboelectric Nanogenerator for Self‐Powered Sewage Treatment

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 28, 2025

Abstract The harvesting of ocean wind energy for triboelectric nanogenerators (TENGs) is greatly influenced by the contact electrification (CE) capability, charge retention characteristics, and harsh marine environment. In this work, four highly water‐stable metal–organic frameworks, including MIL‐101(Cr), UiO‐66, ZIF‐8, MOF‐303, are doped into PVA/Ta layers to modulate their CE retention, resistance environments. capability compared at multiple scales electronic, atomic, molecular levels using DFT calculation. combined effect pyrazole ring ─COO─ group contributes highest tribopositivity PVA/Ta/MOF‐303. Besides, reduced HOMO–LUMO gap increased HOMO level make it easier electrons in PVA/Ta/MOF‐303 transfer. Meanwhile, MOF‐303 with high capture located deep can serve as traps reduce dissipation rate. Hence, density PVA/Ta/MOF‐303‐based TENG (PTM‐TENG) 90% RH reaches 361.43 µC m −2 . Hydrogen bonding, coordination effects, electrostatic interactions endow excellent mechanical, anti‐swelling, anti‐aging properties. Finally, PTM‐TENG assembled a self‐powered sewage treatment system, generation ·OH ·O 2 − enables realize water sterilization rate (99.99%) efficient organic pollutant degradation (>95%) within 20 min.

Language: Английский

Humidity resistant triboelectric nanogenerators for wind energy harvesting: A review

Renewable and Sustainable Energy Reviews, Journal Year: 2025, Volume and Issue: 216, P. 115650 - 115650

Published: April 7, 2025

Language: Английский

Mechanical structure design: A survey on modern triboelectric nanogenerators

Applied Energy, Journal Year: 2025, Volume and Issue: 391, P. 125918 - 125918

Published: April 17, 2025

Language: Английский