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2024-04-23

2024-07-15 18:35浏览数:50

Fully Floatable Mortise-and-Tenon Architecture forSynergistically Photo/Sono-Driven Evaporation Desalinationand Plastic-Enabled Value-Added Co-Conversion

of H2 O andCO2

Establishing an advanced ecosystem incorporating freshwater harvesting,plastic utilization, and clean fuel acquisition is profoundly significant.However, low-efficiency evaporation, single energy utilization, and catalyst

leakage severely hinder sustainable development. Herein, a nanofiber-basedmortise-and-tenon structural Janus

aerogel (MTSJA) is strategically designedin thefirst attempt and supports Z-scheme catalysts. By harnessing of the

upper hydrophilic layer with hydrophilic channels embedding into thehydrophobic bottom layer to achieve tailoring bottom wettability states.MTSJA is capable of a fully-floating function for lower heat loss, water supply,and

high-efficiency solar-to-vapor conversion. Benefiting from the ultrasoniccavitation effect and high sensitivity

of materials to mechanical forces, this isalso thefirst demonstration of synergistic solar and ultrasoundfields to powersimultaneous evaporation desalination and waste plastics as reusablesubstrates generating fuel energy. The system enables persistent desalinationwith an exceptional evaporation rate of 3.1 kg m h and 82.3% efficiency(21 wt.%

NaCl solution and 1 sun), and realizes H2, CO, and CH4yields with16.1, 9.5, and 3μmol h1g1, respectively. This strategy holds great potentialfor desalination and plastics value-added transformation toward clean energyand

carbon neutrality.

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Li Y, Yao T, Wang Y, et al. Fully Floatable Mortise‐and‐Tenon Architecture for Synergistically Photo/Sono‐Driven Evaporation Desalination and Plastic‐Enabled Value‐Added Co‐Conversion of H2O and CO2[J]. Advanced Science, 2024: 2404423.

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