File(s) not publicly available
3D-printed solar evaporator with seashell ornamentation-inspired structure for zero liquid discharge desalination
journal contributionposted on 2023-02-13, 04:45 authored by S Sun, C Shi, Y Kuang, M Li, S Li, H Chan, S Zhang, G Chen, Azadeh NilghazAzadeh Nilghaz, R Cao, J Tian
Solar-driven interfacial evaporation has enormous promise for fresh water recovery and salt harvesting, but salt accumulation-related challenges stand in its way. Herein, we report a spined groove-ridge pairs inspired by the shell ornamentation of the Vasticardium vertebratum, which addresses salt accumulation by artfully integrating salt reflux into localized salt crystallization. The seashell-mimetic radial V-groove array enables the 3D evaporator to transport water rapidly and directionally, resulting in high-performance water evaporation (∼95% efficiency) and localized crystallization. The periodic spines enlightened by the spine-bearing ridge on the seashell provide considerable micro-unit salt reflux. The 2-in-1 integration design endows the three-dimensional evaporator with superior solar-driven zero liquid discharge and excellent long-term salt resistance even when dealing with high-salinity brine (20 wt% NaCl) and a series of heavy metallic salt solutions. Our design offers a new alternative solution to avoiding salt scaling and could advance locally crystallized solar evaporators towards practical applications.
Article numberARTN 119279
Publication classificationC1 Refereed article in a scholarly journal
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Science & TechnologyTechnologyLife Sciences & BiomedicinePhysical SciencesEngineering, EnvironmentalEnvironmental SciencesWater ResourcesEngineeringEnvironmental Sciences & Ecology3D printingSolar desalinationLocalized crystallizationSpined groove-ridge pairsZero liquid dischargeWATER EVAPORATIONCAPILLARY RISEEFFICIENTGENERATIONHEATNANOPARTICLESTECHNOLOGYDYNAMICSSURFACEENERGYAnimalsWater PurificationAnimal ShellsSunlightSodium ChlorideWaterSodium Chloride, DietaryPrinting, Three-Dimensional