Theoretical and experimental study of a new freezing desalination system assisted by ultrasound

Gao, Penghui; Yan, Fuchun; Cong, Jian; Li, Zhiyong; Yan, Haoyang; Teng, Jianbo

doi:10.1016/j.desal.2022.115772

Cited by 16 publications

(1 citation statement)

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“…[7,8] Seawater is extremely rich in the earth, and many desalination technologies including thermal, membrane, and hydrate methods have been used to produce fresh water. [9][10][11][12][13][14] However, these technologies may require large energy consumption and disrupt the ecosystem. Solar-driven bilayer interfacial evaporation technology is an emerging desalination technology and has become a hot research topic.…”

Section: Introductionmentioning

confidence: 99%

Metal–Organic Framework‐Derived Carbon Materials Loading on Polydopamine‐Modified Polyurethane Foam for Interfacial Solar Steam Generation and Seawater Desalination

Chao

Zhang

et al. 2023

Energy Tech

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Solar interfacial evaporation is an effective way to address water scarcity in the 21st century. However, when the evaporator is exposed to light for a long time, salt would be deposited on its surface, leading to degradation of evaporation performance. Herein, an easily fabricated bilayer interfacial carbon–ZrO2/polydopamine/polyurethane foam (carbon–ZrO2/PDA/PU) evaporator is developed, in which carbonized Zr‐based metal–organic frameworks are used as photothermal layer with a light absorption of about 98% in the range of 200–2500 nm and PDA‐modified PU foam is used as the substrate with well water absorption ability and thermal insulation performance. The evaporation system achieves an evaporation rate of 1.626 kg m−2 h−1 and a photothermal conversion efficiency of 80.8% under 1 sun irradiation. Moreover, no salt deposition is generated and the evaporation rate keeps steady even in 10 wt% brine with prolonged light exposure. Therefore, the evaporator has great potential in solar water desalination and alleviates water shortage problems for less developed regions.

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