中国科学:技术科学(英文版)2024,Vol.67Issue(5) :1579-1591.DOI:10.1007/s11431-023-2590-4

A sponge-based iron-tannic-acid hydrogel interface evaporator designed for clean water production

ZHANG ZeKun LI ChengLong TAO HuaYu GE Bo ZHANG YongLe ZHAO LiMin LIU JunChang REN GuiNa ZHANG ZhaoZhu
中国科学:技术科学(英文版)2024,Vol.67Issue(5) :1579-1591.DOI:10.1007/s11431-023-2590-4

A sponge-based iron-tannic-acid hydrogel interface evaporator designed for clean water production

ZHANG ZeKun 1LI ChengLong 1TAO HuaYu 1GE Bo 1ZHANG YongLe 1ZHAO LiMin 1LIU JunChang 1REN GuiNa 2ZHANG ZhaoZhu3
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作者信息

  • 1. School of Materials Science and Engineering,Liaocheng University,Liaocheng 252059,China
  • 2. School of Environmental and Material Engineering,Yantai University,Yantai 264405,China
  • 3. State Key Laboratory of Solid Lubrication,Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences,Lanzhou 730000,China
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Abstract

Due to the rapid advancement of technologies,there has been a significant increase in the discharge of industrial wastewater,and freshwater is becoming a scarce resource.Currently,research on solar evaporators is mainly focused on the efficient production of clean water,with less emphasis on the removal of residual pollutants remaining in the original solutions.Through this study,problems,including the difficult recovery of catalyst powder and the difficult removal of floating organic matter are solved by co-depositing low-surface-tension zirconia particles and bismuth tungstate onto the floating layer.Hydrogels and melamine sponges were combined to solve the problem that traditional hydrogels lack mechanical strength.An excellent water-repellent effect can be seen from the contact angle between the liquid globule and canvas/felt,which is greater than 155°.The steam generation rate of the assembled evaporation system is 1.78 kg m-2 h-1,and its purification efficiency for methyl orange and rhodamine B exceeds 99%.This study presents a novel strategy for treating wastewater contaminated with organic dyes,aiming to solve problems including environmental damage,water pollution,and water scarcity.

Key words

oil removal/non-wetting/interface

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基金项目

Natural Science Foundation of Shandong Province(ZR2022ME073)

Natural Science Foundation of Shandong Province(ZR2021QE086)

Innovation and Entrepreneurship Training Program for College Students(CXCY2022006)

Innovation and Entrepreneurship Training Program for College Students(202210447029)

出版年

2024
中国科学:技术科学(英文版)
中国科学院

中国科学:技术科学(英文版)

CSTPCDEI
影响因子:1.056
ISSN:1674-7321
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