{"title":"Self-assembled porous salt crystals for solar-powered crystallization","authors":"Jie Yu, Lenan Zhang, Jintong Gao, Wenyu Han, Ruzhu Wang, Zhenyuan Xu","doi":"10.1039/d4ee04741a","DOIUrl":null,"url":null,"abstract":"Thermally localized solar evaporation has been recognized as an efficient and suitable pathway for desalination and brine treatment. However, the annoying salt crystallization inside the porous evaporator brings challenges for hypersaline brine evaporation. Here we argue that salt crystals can serve as an ideal structure for evaporation with proper manipulations. Taking advantage of the self-amplifying salt creeping and efflorescence effects, the salt crystals self-assemble to form a hierarchical porous salt evaporator (HPSE), enabling passive liquid supply and efficient evaporation. With a low-cost, solar-powered device based on HPSE, we achieve stable evaporation and crystallization when treating the hypersaline brine with 27.3 wt% salinity under one-sun illumination, resulting in a high evaporation rate of 18.78 kg m-2 h-1. This work bridges the important knowledge gap between fundamental salt crystallization and brine treatment, paving a path toward sustainable water economy.","PeriodicalId":72,"journal":{"name":"Energy & Environmental Science","volume":"11 1","pages":""},"PeriodicalIF":32.4000,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Energy & Environmental Science","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1039/d4ee04741a","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Thermally localized solar evaporation has been recognized as an efficient and suitable pathway for desalination and brine treatment. However, the annoying salt crystallization inside the porous evaporator brings challenges for hypersaline brine evaporation. Here we argue that salt crystals can serve as an ideal structure for evaporation with proper manipulations. Taking advantage of the self-amplifying salt creeping and efflorescence effects, the salt crystals self-assemble to form a hierarchical porous salt evaporator (HPSE), enabling passive liquid supply and efficient evaporation. With a low-cost, solar-powered device based on HPSE, we achieve stable evaporation and crystallization when treating the hypersaline brine with 27.3 wt% salinity under one-sun illumination, resulting in a high evaporation rate of 18.78 kg m-2 h-1. This work bridges the important knowledge gap between fundamental salt crystallization and brine treatment, paving a path toward sustainable water economy.
期刊介绍:
Energy & Environmental Science, a peer-reviewed scientific journal, publishes original research and review articles covering interdisciplinary topics in the (bio)chemical and (bio)physical sciences, as well as chemical engineering disciplines. Published monthly by the Royal Society of Chemistry (RSC), a not-for-profit publisher, Energy & Environmental Science is recognized as a leading journal. It boasts an impressive impact factor of 8.500 as of 2009, ranking 8th among 140 journals in the category "Chemistry, Multidisciplinary," second among 71 journals in "Energy & Fuels," second among 128 journals in "Engineering, Chemical," and first among 181 scientific journals in "Environmental Sciences."
Energy & Environmental Science publishes various types of articles, including Research Papers (original scientific work), Review Articles, Perspectives, and Minireviews (feature review-type articles of broad interest), Communications (original scientific work of an urgent nature), Opinions (personal, often speculative viewpoints or hypotheses on current topics), and Analysis Articles (in-depth examination of energy-related issues).