Textile waste derived cellulose based composite aerogel for efficient solar steam generation
Textile waste derived cellulose based composite aerogel for efficient solar steam generation
复制标题
纺织废料衍生纤维素基复合气凝胶用于高效太阳能蒸汽发电
DOI：
10.1016/j.coco.2021.100936
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发表时间：
2021-09-15
影响因子：
8
通讯作者：
Yu, Jianyong
中科院分区：
文献类型：
--
作者：
He, Mantang;Alam, Md. Kowsar;Yu, Jianyong
基于纤维素的气凝胶由于其可再生的生物聚合物资源和互连的微孔特征而被认为是用于太阳能蒸汽发生的有希望的候选者。寻找一种环境友好的方法来获得纤维素纤维并制备气凝胶蒸发器是一种现实的需求。在这里，一个稳定的和可持续的纤维素复合气凝胶为基础的太阳能蒸汽发生器来自废旧棉织物的报告。所制备的聚乙烯亚胺交联碳纳米管/纤维素纳米纤维（PEI@CNTs/CNFs）气凝胶在1个太阳光照下显示出1.9 kg m-2 h-1的高太阳能蒸汽发生速率和91.4%的光-蒸汽效率。此外，蒸发器经过长期测试，可保证持续稳定的太阳能蒸汽发生性能。此外，太阳能蒸汽发生器可以净化各种废水，如。G.染料废水、重金属离子废水、海水。这些未来使设计的纤维素基复合气凝胶为太阳能驱动的水净化，再生和脱盐提供了一种有效的方法。
Cellulose based aerogels have been deemed as promising candidates for solar steam generation owing to their renewable biopolymer resources and interconnected microporous features. To find an environmentally friendly way to obtain cellulose nanofiber and prepare aerogel-based evaporator is a practical demand. Here, a stable and sustainable cellulose composite aerogel based solar steam generator derived from waste cotton fabrics is reported. The fabricated polyethyleneimine crosslinked carbon nanotubes/cellulose nanofibers (PEI@CNTs/CNFs) aerogel shows a high solar steam generation rate of 1.9 kg m-2 h-1 with the light-to-vapor efficiency of 91.4% under 1 sun illumination. In addition, the evaporator can guarantee sustainable and stable solar steam generation performance after long-term test. Moreover, the solar steam generator can purify a variety of wastewater, e. g. dye wastewater, heavy metal ion wastewater, and seawater. These futures make the designed cellulose based composite aerogel offer an efficient way for solar-driven water purification, regeneration, and desalination.