Solar-Driven Multistage Device Integrating Dropwise Condensation and Guided Water Transport for Efficient Freshwater and Salt Collection

Tian, Yankuan1; Jiang, Yifei1; Zhu, Ruishu2; Yang, Xin1; Wu, Dequn1; Wang, Xueli2; Yu, Jianyong2; Li, Yiju3; Gao, Tingting1; Li, Faxue1

2024-04-16

10.1021/acs.est.3c10450

ENVIRONMENTAL SCIENCE & TECHNOLOGY   影响因子和分区

0013-936X

1520-5851

Interfacial solar vapor generation (ISVG) is an emerging technology to alleviate the global freshwater crisis. However, high-cost, low freshwater collection rate, and salt-blockage issues significantly hinder the practical application of solar-driven desalination devices based on ISVG. Herein, with a low-cost copper plate (CP), nonwoven fabric (NWF), and insulating ethylene-vinyl acetate foam (EVA foam), a multistage device is elaborately fabricated for highly efficient simultaneous freshwater and salt collection. In the designed solar-driven device, a superhydrophobic copper plate (SH-CP) serves as the condensation layer, facilitating rapid mass and heat transfer through dropwise condensation. Moreover, the hydrophilic NWF is designed with rational hydrophobic zones and specific high-salinity solution outlets (Design-NWF) to act as the water evaporation layer and facilitate directional salt collection. As a result, the multistage evaporator with eight stages exhibits a high water collection rate of 2.25 kg m-2 h-1 under 1 sun irradiation. In addition, the desalination device based on the eight-stage evaporator obtains a water collection rate of 13.44 kg m-2 and a salt collection rate of 1.77 kg m-2 per day under natural irradiation. More importantly, it can maintain a steady production for 15 days without obvious performance decay. This bifunctional multistage device provides a feasible and efficient approach for simultaneous desalination and solute collection.

solar-driven desalination device nonwoven fabric copper plate dropwise condensation directionalsalt collection

SCI ; EI

英语

通讯

National Natural Science Foundation of China[52003045] ; National Natural Science Foundation of China[2232023G-01] ; Shanghai Frontier Science Research Center for Modern Textiles[20YF1400700]

Engineering ; Environmental Sciences & Ecology

Engineering, Environmental ; Environmental Sciences

WOS:001203605100001

AMER CHEMICAL SOC

ENVIRONMENT/ECOLOGY

Web of Science

1.Donghua Univ, Coll Text, Shanghai Frontiers Sci Res Ctr Adv Text, Shanghai 201620, Peoples R China
2.Donghua Univ, Innovat Ctr Text Sci & Technol, Shanghai 201620, Peoples R China
3.Southern Univ Sci & Technol, Dept Mech & Energy Engn, Shenzhen 518055, Guangdong, Peoples R China

Tian, Yankuan,Jiang, Yifei,Zhu, Ruishu,et al. Solar-Driven Multistage Device Integrating Dropwise Condensation and Guided Water Transport for Efficient Freshwater and Salt Collection[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2024,58(17).

Tian, Yankuan.,Jiang, Yifei.,Zhu, Ruishu.,Yang, Xin.,Wu, Dequn.,...&Li, Faxue.(2024).Solar-Driven Multistage Device Integrating Dropwise Condensation and Guided Water Transport for Efficient Freshwater and Salt Collection.ENVIRONMENTAL SCIENCE & TECHNOLOGY,58(17).

Tian, Yankuan,et al."Solar-Driven Multistage Device Integrating Dropwise Condensation and Guided Water Transport for Efficient Freshwater and Salt Collection".ENVIRONMENTAL SCIENCE & TECHNOLOGY 58.17(2024).