Janus Poly(ionic liquid) Monolithic Photothermal Materials with Superior Salt-Rejection for Efficient Solar Steam Generation

doi:10.1021/acsaem.9b01856

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	Janus Poly(ionic liquid) Monolithic Photothermal Materials with Superior Salt-Rejection for Efficient Solar Steam Generation
	Xiao, Chaohu 1,2; Liang, Weidong 2; Chen, Lihua 1; He, Jingxian 2; Liu, Fang 2; Sun, Hanxue 2; Zhu, Zhaoqi 2; Li, An 2
刊名	ACS Applied Energy Materials
	2019-12-23
卷号	2 期号:12 页码:8862-8870
关键词	Conversion efficiency Desalination Evaporation Light absorption Positive ions Soot Steam generators Superhydrophilicity Thermal conductivity Carbon soot Photo-thermal Poly(ionic liquid)s Salt resistance Solar steam
ISSN号	2574-0962
DOI	10.1021/acsaem.9b01856
英文摘要	The development of photothermal materials with high light-to-heat conversion efficiency as well as superior salt-resistant performance is of importance for real solar desalination. Here, we demonstrate a strategy for facile fabrication of Janus photothermal materials based on porously superhydrophilic poly(ionic liquid) monolith coated with strong hydrophobic carbon soot (C-PDVB-BF4ILs) for high-efficiency solar steam generation. Based on their mesoporous three-dimensional architecture, excellent light absorption (92%), and low thermal conductivity (0.293 W m-1 K-1), the evaporation conversion efficiency of C-PDVB-BF4ILs reaches up to 92.4% under 1 sun illumination without additional thermal insulators being used, which is comparable to the best performance of the current reported bilayered evaporation systems. More interestingly, by applying it for solar evaporation in saline solutions, the Donnan exclusion effect generated from imidazolium-based cations of poly(ionic liquid) against cations from saline solution endows the C-PDVB-BF4ILs excellent salt-resistant performance, by combination with its unique Janus structure. Based on its simple and scalable fabrication process with high energy conversion efficiency and excellent salt resistance, the strategy proposed in this work may be expected to provide new possibilities for the rational design and fabrication of high-performance photothermal conversion materials for real solar desalination applications. © 2019 American Chemical Society.
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science
语种	英语
出版者	American Chemical Society
WOS记录号	WOS:000504953500058
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114382]
专题	石油化工学院
作者单位	1.College of Chemical Engineering, Experimental Teaching Department, Key Lab. for Utility of Environ.-Friendly Compos. Mat. and Biomass in Universities of Gansu Province, Northwest Minzu University, Lanzhou; 730030, China 2.College of Petrochemical Technology, Lanzhou University of Technology, Langongping Road 287, Lanzhou; 730050, China;
推荐引用方式 GB/T 7714	Xiao, Chaohu,Liang, Weidong,Chen, Lihua,et al. Janus Poly(ionic liquid) Monolithic Photothermal Materials with Superior Salt-Rejection for Efficient Solar Steam Generation[J]. ACS Applied Energy Materials,2019,2(12):8862-8870.
APA	Xiao, Chaohu.,Liang, Weidong.,Chen, Lihua.,He, Jingxian.,Liu, Fang.,...&Li, An.(2019).Janus Poly(ionic liquid) Monolithic Photothermal Materials with Superior Salt-Rejection for Efficient Solar Steam Generation.ACS Applied Energy Materials,2(12),8862-8870.
MLA	Xiao, Chaohu,et al."Janus Poly(ionic liquid) Monolithic Photothermal Materials with Superior Salt-Rejection for Efficient Solar Steam Generation".ACS Applied Energy Materials 2.12(2019):8862-8870.