Issue 14, 2024

All-in-one hybrid atmospheric water harvesting for all-day water production by natural sunlight and radiative cooling

Abstract

Extracting water from air is a promising method to solve the global challenge of water scarcity. Sorption-based atmospheric water harvesting (S-AWH) has the capability of all-weather water production from air under arid or humid climates. However, high energy consumption and low water production are two long-standing bottlenecks to realizing efficient S-AWH. Herein, we propose a low-carbon sustainable strategy for atmospheric water generation by synergistically harvesting heat from natural sunlight for water desorption and cold from the universe for water condensation. The synergistic effects of transmittance-type radiative cooling membranes enable the hybrid AWH to realize efficient S-AWH by lowering water condensation temperature in the daytime and providing extra water production in the nighttime. Notably, the hybrid AWH device exhibits water productivity of up to 3654 g m−2 day−1. This work offers an energy-efficient method for all-day atmospheric water generation by synergistically harvesting energy from sunlight and sky radiative cooling.

Graphical abstract: All-in-one hybrid atmospheric water harvesting for all-day water production by natural sunlight and radiative cooling

Supplementary files

Article information

Article type
Paper
Submitted
15 Dec 2023
Accepted
02 Apr 2024
First published
10 Apr 2024

Energy Environ. Sci., 2024,17, 4988-5001

All-in-one hybrid atmospheric water harvesting for all-day water production by natural sunlight and radiative cooling

J. Xu, X. Huo, T. Yan, P. Wang, Z. Bai, J. Chao, R. Yang, R. Wang and T. Li, Energy Environ. Sci., 2024, 17, 4988 DOI: 10.1039/D3EE04363K

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