材料科学
碳纳米管
海水淡化
蒸发
太阳能
光热治疗
纳米技术
能量转换效率
化学工程
化学
光电子学
生态学
生物化学
物理
膜
生物
工程类
热力学
作者
Jin Yang,Xing Gong,Yujian He,Hen Wang,Shaoxiang Li,Jingquan Liu
出处
期刊:Solar RRL
[Wiley]
日期:2023-10-28
卷期号:7 (24)
标识
DOI:10.1002/solr.202300548
摘要
Solar steam generation to generate steam through solar light‐driven surface evaporation can be an attractive methodology that utilizes green and inexhaustible solar energy to generate water steam and fresh water with superior efficiency. However, some drawbacks of the current photothermal conversion materials such as complicated fabrication process, high cost, and low salt tolerance often heavily restrict their wide applications. Herein, a green and low‐cost method is designed and developed for constructing a free‐standing, elastic, and highly tough 3D network of carbon nanotubes (CNTs) and MXene through an efficient “egg‐box” coordination mechanism in only one step for high‐efficiency water evaporation. When the mass ratios of MXene and CNTs are designed at 1:1.5 and cross‐linked with sodium alginate and CaCl 2 , the obtained MCS‐3 shows the most excellent light absorption and hydrophilicity, leading to the best evaporation rate of 1.644 kg m −2 h −1 , and the highest photothermal conversion efficiency of 96%. Moreover, subject to different harsh environments and durability tests, MCS‐3 also shows desired structural stability and evaporation performance. As demonstrated by its extraordinary photothermal evaporation properties, MCS‐3 can envision a wide range of commercial applications covering wastewater purification, brine seawater, desalination, etc.
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