{"title":"Innovative 3D Janus foam design achieves high-efficiency and stable solar desalination with improved salt resistance and heat management","authors":"Quan Zhang, Aiping Liu, Lanqi Jing, Jianlong Huang, Mingchao Zhang, Yujian He, Aitang Zhang","doi":"10.1016/j.cej.2024.155887","DOIUrl":null,"url":null,"abstract":"SDIE technology is an effective means to address freshwater scarcity, but faces challenges such as thermal management, salt scale resistance, and high energy efficiency. Herein, a 3D Janus Foam with a hydrophobic surface layer and a hydrophilic inner layer was synthesized for efficient seawater desalination. Such strategic layering provides effective thermal management, resulting in a heat loss of only ∼1.13 % throughout the photothermal conversion process. The Janus Foam’s ability to prevent salt accumulation while maintaining high evaporation efficiency over extended periods is a critical improvement over current technology. Under 1 kW m<ce:sup loc=\"post\">−2</ce:sup>, the evaporation rate of the Janus Foam is as high as 1.7898 kg m<ce:sup loc=\"post\">−2</ce:sup> h<ce:sup loc=\"post\">−1</ce:sup> with an efficiency of 96.87 %. Even under actual seawater conditions, the evaporation rate of the foam remains at 1.7426 kg m<ce:sup loc=\"post\">−2</ce:sup> h<ce:sup loc=\"post\">−1</ce:sup> with an efficiency of 91.83 %, demonstrating its high energy efficiency and adaptability to different operating environments. In conclusion, the innovative design of the 3D Janus foam offers a promising avenue for addressing global freshwater scarcity through enhanced solar interfacial evaporation processes.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":null,"pages":null},"PeriodicalIF":13.3000,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemical Engineering Journal","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1016/j.cej.2024.155887","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0
Abstract
SDIE technology is an effective means to address freshwater scarcity, but faces challenges such as thermal management, salt scale resistance, and high energy efficiency. Herein, a 3D Janus Foam with a hydrophobic surface layer and a hydrophilic inner layer was synthesized for efficient seawater desalination. Such strategic layering provides effective thermal management, resulting in a heat loss of only ∼1.13 % throughout the photothermal conversion process. The Janus Foam’s ability to prevent salt accumulation while maintaining high evaporation efficiency over extended periods is a critical improvement over current technology. Under 1 kW m−2, the evaporation rate of the Janus Foam is as high as 1.7898 kg m−2 h−1 with an efficiency of 96.87 %. Even under actual seawater conditions, the evaporation rate of the foam remains at 1.7426 kg m−2 h−1 with an efficiency of 91.83 %, demonstrating its high energy efficiency and adaptability to different operating environments. In conclusion, the innovative design of the 3D Janus foam offers a promising avenue for addressing global freshwater scarcity through enhanced solar interfacial evaporation processes.
期刊介绍:
The Chemical Engineering Journal is an international research journal that invites contributions of original and novel fundamental research. It aims to provide an international platform for presenting original fundamental research, interpretative reviews, and discussions on new developments in chemical engineering. The journal welcomes papers that describe novel theory and its practical application, as well as those that demonstrate the transfer of techniques from other disciplines. It also welcomes reports on carefully conducted experimental work that is soundly interpreted. The main focus of the journal is on original and rigorous research results that have broad significance. The Catalysis section within the Chemical Engineering Journal focuses specifically on Experimental and Theoretical studies in the fields of heterogeneous catalysis, molecular catalysis, and biocatalysis. These studies have industrial impact on various sectors such as chemicals, energy, materials, foods, healthcare, and environmental protection.