Fuqiang Zhang, Zhiqiang Qi, Xiangsheng Han, Hongzhen Cai, Keyan Yang
{"title":"用 MXene 纳米片增强壳聚糖作为稳定的光热蒸发器,实现高效太阳能蒸发","authors":"Fuqiang Zhang, Zhiqiang Qi, Xiangsheng Han, Hongzhen Cai, Keyan Yang","doi":"10.1039/d4se00617h","DOIUrl":null,"url":null,"abstract":"Interfacial solar steam generation (ISSG) is an effective method to produce clean water through evaporating seawater actuated by solar energy. Nevertheless, developing a solar evaporator that is simultaneously simple in process and maintains good stability and high efficiency is still difficult but in great demand. Herein, the aerogel solar evaporator was prepared by cross-linking chitosan (CS) and two-dimensional transition metal carbide/nitride (MXene) nanosheets with excellent properties via a simple freeze-drying strategy. The unique three-dimensional network structure and good biocompatibility could quickly transport wet from the bottom up to the evaporation surface by capillary force. MXene nanosheets combined a broad spectral response with strong solar absorption capacity, enabling the CS/MXene aerogel solar evaporator to exhibit strong light absorption, light-to-heat conversion, and water transport capabilities. The results showed that the water evaporation rate under one sun was as high as 1.80 kg∙m–2∙h–1, with an energy conversion efficiency of 84%. Notably, the stability of the solar evaporator ensured stable solar water evaporation over a long period compared with most CS-based solar evaporators. Meanwhile, clean water could be continuously produced from acidic, alkaline, organic dye solutions, and saline brines. These tactics pave a new way for developing solar absorbers for solar-driven desalination.","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":null,"pages":null},"PeriodicalIF":5.0000,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"MXene nanosheets-reinforced chitosan as a stable photothermal evaporator for efficient solar evaporation\",\"authors\":\"Fuqiang Zhang, Zhiqiang Qi, Xiangsheng Han, Hongzhen Cai, Keyan Yang\",\"doi\":\"10.1039/d4se00617h\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Interfacial solar steam generation (ISSG) is an effective method to produce clean water through evaporating seawater actuated by solar energy. Nevertheless, developing a solar evaporator that is simultaneously simple in process and maintains good stability and high efficiency is still difficult but in great demand. Herein, the aerogel solar evaporator was prepared by cross-linking chitosan (CS) and two-dimensional transition metal carbide/nitride (MXene) nanosheets with excellent properties via a simple freeze-drying strategy. The unique three-dimensional network structure and good biocompatibility could quickly transport wet from the bottom up to the evaporation surface by capillary force. MXene nanosheets combined a broad spectral response with strong solar absorption capacity, enabling the CS/MXene aerogel solar evaporator to exhibit strong light absorption, light-to-heat conversion, and water transport capabilities. The results showed that the water evaporation rate under one sun was as high as 1.80 kg∙m–2∙h–1, with an energy conversion efficiency of 84%. Notably, the stability of the solar evaporator ensured stable solar water evaporation over a long period compared with most CS-based solar evaporators. Meanwhile, clean water could be continuously produced from acidic, alkaline, organic dye solutions, and saline brines. These tactics pave a new way for developing solar absorbers for solar-driven desalination.\",\"PeriodicalId\":104,\"journal\":{\"name\":\"Sustainable Energy & Fuels\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":5.0000,\"publicationDate\":\"2024-06-27\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Sustainable Energy & Fuels\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1039/d4se00617h\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Sustainable Energy & Fuels","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1039/d4se00617h","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
MXene nanosheets-reinforced chitosan as a stable photothermal evaporator for efficient solar evaporation
Interfacial solar steam generation (ISSG) is an effective method to produce clean water through evaporating seawater actuated by solar energy. Nevertheless, developing a solar evaporator that is simultaneously simple in process and maintains good stability and high efficiency is still difficult but in great demand. Herein, the aerogel solar evaporator was prepared by cross-linking chitosan (CS) and two-dimensional transition metal carbide/nitride (MXene) nanosheets with excellent properties via a simple freeze-drying strategy. The unique three-dimensional network structure and good biocompatibility could quickly transport wet from the bottom up to the evaporation surface by capillary force. MXene nanosheets combined a broad spectral response with strong solar absorption capacity, enabling the CS/MXene aerogel solar evaporator to exhibit strong light absorption, light-to-heat conversion, and water transport capabilities. The results showed that the water evaporation rate under one sun was as high as 1.80 kg∙m–2∙h–1, with an energy conversion efficiency of 84%. Notably, the stability of the solar evaporator ensured stable solar water evaporation over a long period compared with most CS-based solar evaporators. Meanwhile, clean water could be continuously produced from acidic, alkaline, organic dye solutions, and saline brines. These tactics pave a new way for developing solar absorbers for solar-driven desalination.
期刊介绍:
Sustainable Energy & Fuels will publish research that contributes to the development of sustainable energy technologies with a particular emphasis on new and next-generation technologies.