articleAdvanced Functional MaterialsOct 31, 2022Closed access

Fully Lignocellulosic Biomass‐Based Double‐Layered Porous Hydrogel for Efficient Solar Steam Generation

XLXuliang LinPWPing WangRHRuitong HongXZXi ZhuYLYingchun Liu

Guangdong University of Technology · University of Wisconsin–Madison

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Abstract

Abstract Solar‐driven interfacial evaporation is an important approach for solving the issue of freshwater scarcity. However, the practical application of solar steam generation is hindered by high fabrication cost and environmental concerns regarding the petroleum‐based materials. Herein, lignocellulose (cellulose‐lignin composite) hydrogel (LCG) and lignin‐derived carbon (LC) are used as the substrate and photothermal material, respectively, to construct a fully lignocellulose‐based double‐layered hydrogel (LC@LCG) evaporator. Results indicate that LC has an ultrahigh specific surface area and full‐spectrum solar absorption of 98%. The presence of lignin can improve the hydrophilicity and maintain the…

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Topics & keywords

Topics
Keywords
  • Materials science
  • Evaporator
  • Chemical engineering
  • Desalination
  • Cellulose
  • Solar desalination
  • Lignocellulosic biomass
  • Biomass (ecology)
UN Sustainable Development Goals
  • Life below water
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