A facile nanocomposite strategy to fabricate a rGO–MWCNT photothermal layer for efficient water evaporation

doi:10.1007/s00284-017-1275-1

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	A facile nanocomposite strategy to fabricate a rGO–MWCNT photothermal layer for efficient water evaporation
	Wang, Yuchao ; Wang, Canzhu ; Song Xiangju ; Megarajana, Suresh Kumar ; Jiang Heqing
	2017-11-30
发表期刊	Journal of Materials Chemistry A
卷号	74 期号:8 页码:972-978
其他摘要	Solar-driven water evaporation assisted by photothermal membranes is considered as one of the sustainable and cost-effective strategies for pure water generation and wastewater treatment. Herein, we report a facile but effective approach to improve the photothermal performance by combining 2D reduced graphene oxide (rGO) and 1D multi-walled carbon nanotubes (MWCNTs), which have different nanomorphologies. The photothermal layer can be easily deposited on different substrate materials via simple vacuum assistance. Such a composite photothermal layer shows a rough surface with a controllable nano-structure, which can thus optimize solar light harvesting. On the other hand, the formation of a loose internal porous structure and suitable wettability ensure water transport inside the photothermal layer during evaporation. The surface temperature reaches as high as 78 C even under one sun irradiation (1 kW m 2), which is 10 C higher than the result of pure rGO membranes. When loaded on a PVDF substrate, the rGO–MWCNT based membrane is flexible and shows an obvious improvement in the evaporation rate, about 79.0% and 8.9% higher than those of pure rGO and MWCNT membranes, respectively. The solar thermal conversion efficiency can reach up to 80.4% without any extra accessory for thermal management. Based on our results, the nanocomposite strategy is facile and effective for the development of novel photothermal membranes for high-efficiency evaporation, and contributes to the widespread application in the fields of desalination and wastewater treatment.
文章类型	Article
DOI	10.1007/s00284-017-1275-1
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/9947
专题	膜分离与催化研究组
作者单位	1.中国科学院青岛生物能源与过程研究所 2.中国海洋大学 3.中国科学院大学
推荐引用方式 GB/T 7714	Wang, Yuchao,Wang, Canzhu,Song Xiangju,等. A facile nanocomposite strategy to fabricate a rGO–MWCNT photothermal layer for efficient water evaporation[J]. Journal of Materials Chemistry A,2017,74(8):972-978.
APA	Wang, Yuchao,Wang, Canzhu,Song Xiangju,Megarajana, Suresh Kumar,&Jiang Heqing.(2017).A facile nanocomposite strategy to fabricate a rGO–MWCNT photothermal layer for efficient water evaporation.Journal of Materials Chemistry A,74(8),972-978.
MLA	Wang, Yuchao,et al."A facile nanocomposite strategy to fabricate a rGO–MWCNT photothermal layer for efficient water evaporation".Journal of Materials Chemistry A 74.8(2017):972-978.

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