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Sustainable biomimetic solar distillation with edge crystallization for passive salt collection and zero brine discharge

Engineering and Technology

Sustainable biomimetic solar distillation with edge crystallization for passive salt collection and zero brine discharge

M. A. Abdelsalam, M. Sajjad, et al.

Discover an innovative solar desalination device that mimics mangroves, designed to generate freshwater and efficiently collect salt without generating brine. This remarkable technology, developed by Mohamed A. Abdelsalam, Muhammad Sajjad, Aikifa Raza, Faisal AlMarzooqi, and TieJun Zhang, achieves impressive efficiency and sustainability.

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Playback language: English
Abstract
This paper introduces a scalable, mangrove-mimicked solar desalination device that generates freshwater and passively collects salt without brine discharge. The device utilizes low-cost, superhydrophilic nanostructured titanium meshes to form a porous wicking stem and multi-layer leaves. Salt crystallizes on leaf edges, forming a porous patch that enhances vaporization. Under one sun, it achieves 94% photothermal efficiency with synthetic seawater and produces 2.2 L m⁻² of freshwater daily from real seawater.
Publisher
Nature Communications
Published On
Jan 29, 2024
Authors
Mohamed A. Abdelsalam, Muhammad Sajjad, Aikifa Raza, Faisal AlMarzooqi, TieJun Zhang
Tags
solar desalination
mangrove mimicry
freshwater generation
photothermal efficiency
salt collection
nanostructured materials
environmentally friendly technology

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