纤维基界面光热蒸发器表面除盐的研究进展  

Research progress on salt removal from surface of fiber-based interfacial photothermal evaporators

作　　者：潘露琪 任李培 肖杏芳 徐卫林[1] 张骞[1] PAN Luqi;REN Lipei;XIAO Xingfang;XU Weilin;ZHANG Qian(State Key Laboratory of New Textile Materials and Advanced Processing Technologies,Wuhan Textile University,Wuhan,Hubei 430200,China)

机构地区：[1]武汉纺织大学省部共建纺织新材料与先进加工技术国家重点实验室,湖北武汉430200

出　　处：《纺织学报》2023年第11期225-231,共7页Journal of Textile Research

基　　金：国家自然科学基金项目(52103064,52303323)。

摘　　要：为深入探究具有能量转换效率高、清洁无污染的界面光热蒸发器,简要介绍了当前纤维基界面光热蒸发器表面除盐的研究进展,以及其在海水淡化与浓盐处理等领域的应用,探讨了界面蒸发过程中水分迅速逃逸导致的盐分析出抑制对光的吸收和堵塞蒸汽溢出通道的作用机制,以及产生的降低器件蒸汽产生速率及使用周期的影响。分析了基于纤维材料设计的除盐策略,包括主动式(水洗除盐与区域结晶盐收集)和被动式(自清洁设计、对流效应、定向流体传输与Janus织物设计)。最后,对纤维材料在太阳能界面蒸发器表面除盐设计所面临的挑战及未来潜在的应用前景进行总结与展望。Significance Solar interfacial photothermal evaporation technology possesses the characteristics of high energy conversion efficiency,clean and zero-pollution,which has broad development prospects in the field of seawater desalination and concentrated salt wastewater treatment.However,the salt precipitation caused by the rapid water escape in the process of interfacial evaporation will inhibit the absorption of light and block the vapor overflow channel,which will inevitably reduce the vapor generation rate and the service life of the evaporation device.Fiber materials are one of the ideal materials for designing solar interfacial evaporator surface desalination because of their flexible mechanical strength,low cost,versatility,cutability and processability.Progress This review covers a variety of studies on photothermal evaporation desalination at fiber-based interfaces and focuses on six desalination strategies based on the characteristics of fiber materials,which are grouped into two categories:active and passive.Washing desalination utilizes the water-washing resistance of fiber materials,the surface salt crystals are easily removed by external rubbing.In order to overcome the above-mentioned possible environmental problems,the regional crystalline salt collection strategy not only removes crystalline salt by simple stripping,but also obtains salt as a by-product and reduces the burden on water bodies.However,active desalination strategies still require external forces to remove surface salt crystals,and the sustainability and simplicity of the evaporator are significantly diminished.Therefore,research has exploited the lightness of fiber materials to produce,a easy-to-flip self-cleaning design,when its gravity changes.The current mainstream research focuses on rejecting salt production at the source.The convection effect takes advantage of the loose and porous nature of the fiber material to prepare highly hydrophilic evaporator to achieve a continuous water supply to satisfy salt ion convection.In addition,

关 键 词：纤维 光热转换 界面蒸发 太阳能界面蒸发器 除盐 海水淡化 

分 类 号：TS101.8[轻工技术与工程—纺织工程]