Constructing 3D optical absorption holes by stacking macroporous membrane for highly efficient solar steam generation
Constructing 3D optical absorption holes by stacking macroporous membrane for highly efficient solar steam generation
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DOI：
10.1016/j.renene.2020.06.051
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发表时间：
2020-10
期刊：
影响因子：
8.7
通讯作者：
Chenglong Guo;Jiaxu Zhao;Wenting Zhang;E. Miao;Yuhang Xie
中科院分区：
文献类型：
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作者：
Chenglong Guo;Jiaxu Zhao;Wenting Zhang;E. Miao;Yuhang Xie
近年来，太阳能蒸汽发电技术在海水淡化中受到广泛关注，但存在盐净化困难、费用高等问题，限制了其进一步发展。本文通过堆叠大孔膜构建3D光吸收孔，开发了一种低成本且易于清洁的炭黑纱网膜（CBGM），有利于增强光吸收。 4层CBGM蒸发装置表现出改进的太阳能蒸汽产生性能，在1kW m−2下分别对应于1.60 kg m−2h−1的蒸发速率和96.0%的蒸发效率。同样，4层CBGM蒸发装置表现出优异的可回收性、长寿命和优异的海水淡化性能，并且能够有效地从海水中生产可饮用的淡水。因此，CBGM 被认为是高效太阳能海水淡化的有前途的替代方案。
In recent years, solar steam generation technology has received widespread attention in seawater desalination, but existence of some problems, namely difficulty in salt cleaning and high expense, limited it further development. Herein, in this work, a carbon black gauze membrane (CBGM), with low cost and easy to clean properties, was developed by stacking macroporous membrane to construct 3D optical absorption holes, which were favorable to an enhancement of light absorption. The 4-layer CBGM evaporation device displayed an improved solar steam generation performance, which was corresponded to the evaporation rate of 1.60 kg m−2h−1and the evaporation efficiency of 96.0% under 1 kW m−2, respectively. Likewise, the 4-layer CBGM evaporation device exhibited superior recyclability, long life and excellent desalination performance, as well as was able to effectively produce potable freshwater from seawater. Consequently, the CBGM was regarded as a promising alternative for high-efficiency solar-driven seawater desalination.