碳化土豆的太阳能界面水蒸发性能

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文章编号： 1672-6987（2023）02-0048-07； DOI： 10.16351/j.1672-6987.2023.02.007

张伟， 朱海涛*(青岛科技大学 材料科学与工程学院，山东 青岛 266042)

摘要： 以土豆为原料，通过表面打孔、碳化工艺得到光热转换材料。研究了该材料的组成、微观结构、光吸收、亲水性、光热转换以及太阳能界面水蒸发性能。结果表明：碳化土豆是多孔结构的无定形碳，在紫外（250~380 nm）和可见光范围内（380~780 nm）光吸收超过90%；具有极好的亲水性、光热转换以及太阳能界面水蒸发性能。在1个太阳辐照下（光功率密度为1 kW·m-2）蒸发速率达到了144 kg·（m2·h）-1，蒸发效率达到了9071%。碳化土豆可用于含有机染料废水、重金属离子废水的处理。

关键词： 太阳能； 界面水蒸发； 土豆； 碳化

中图分类号： TB 321文献标志码： A

引用格式： 张伟， 朱海涛. 碳化土豆的太阳能界面水蒸发性能［J］. 青岛科技大学学报(自然科学版), 2023, 44(2): 48-54.

ZHANG Wei, ZHU Haitao. Solar-driven interfacial water evaporation performance of carbonized potatoes［J］. Journal of Qingdao University of Science and Technology（Natural Science Edition), 2023, 44(2): 48-54.

Solar-driven Interfacial Water Evaporation Performance of Carbonized Potatoes

ZHANG Wei, ZHU Haitao

(College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China)

Abstract: In this work, potatoes were used as raw material, and photothermal material was obtained by surface perforation and carbonization process. The composition, microstructure, light absorption, hydrophilicity, photothermal conversion and solar-driven interfacial water evaporation performance of photothermal material were studied. The results show that carbonized potatoes are amorphous carbon with porous structure, and the light absorption in ultraviolet (250—380 nm) and visible light range (380—780 nm) exceeds 90%. Carbonized potato exhibits excellent hydrophilicity, photothermal conversion and solar-powered water evaporation performance. Under one solar irradiation (the optical power density is 1 kW·m-2), the evaporation rate reaches to 144 kg·（m2·h）-1, and the evaporation efficiency is 9071%. Carbonized potatoes can be used for sewage treatment of organic dyes and heavy metal ions.

Key words: solar energy; interfacial evaporation; potato; carbonization

收稿日期： 2022-05-26

基金项目： 国家自然科学基金项目（51872151）.

作者简介： 张伟（1995—），男，硕士研究生.*通信联系人.