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A triboelectric aerogel for simultaneous oil-water separation and self-powered water quality monitoring
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DOI：10.1016/j.nanoen.2026.111969.png)
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Abstract
En 中文
Efficient oil-water separation is essential for the treatment of oily wastewater, where in-situ intelligent detection of the water quality remains a challenge. In this study, we developed a polydopamine/hyperbranched polymer/ PVDF composite aerogel (DHPA) with a built-in metallic mesh electrode, achieving both efficient oil-water separation and water-quality monitoring capabilities by leveraging a vertically aligned pore structure with abundant hydrophilic groups, and a single-electrode solid-liquid electrification mechanism in the water filtration process. The material achieved a high oil-water separation efficiency (99.7%) with a stable flux (5445.8 L & sdot;m-2 & sdot;h-1). Based on distinct solid-liquid interactions and triboelectric charge transfer between different wastewaters and the aerogel, the aerogel demonstrates feasibility for synchronous water quality detection, involving the identification of NaCl solution concentrations, oil-water mixtures, and dye wastewater. A detection accuracy of 98% for the recognition of oil-water emulsion concentration was demonstrated by combining a multi-layer perceptron from deep learning. This research provides a promising strategy that integrates efficient separation, autonomous sensing, and intelligent diagnostics for the treatment and real-time monitoring of oily wastewater, presenting the potential for constructing intelligent wastewater management platforms.
Keywords:
Triboelectric aerogel
Oil-water separation
Solid-liquid triboelectrification
Water quality detection
Deep learning
Journal
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17.1
Papers:
1.1W
Citations:
13.0W
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