Preparation of Lignin-based Polymer Microspheres and Study on Solar Photothermal Conversion Properties
Solvothermal has been used to develop lignin-based polymeric microspheres that are excellently suited for solar photothermal conversion.The materials show excellent light-absorbing performance throughout the solar spectrum,due to the large conjugated structure.As expected,the solar photothermal conversion test shows that a significant temperature increasing from room temperature to about 58 ℃ can be achieved within 30 s under simulated solar radiation(1 kW/m2).Meanwhile,the materials provide a satisfactory photothermal response during the cycling stability measurement.In addition,a composite aerogel material was prepared for practical photothermal conversion application based on solvothermal treatment in the presence of bacterial cellulose.The composite material proposed could have great potential for applications in the field of water harvesting.
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