Facile and Scalable Fabrication of Surface-Modified Sponge for Efficient Solar Steam Generation

doi:10.1002/cssc.201802406

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Facile and Scalable Fabrication of Surface-Modified Sponge for Efficient Solar Steam Generation
	Zhang, Zheng 1; Mu, Peng 1; He, Jingxian 1,2; Zhu, Zhaoqi 1; Sun, Hanxue 1; Wei, Huijuan 2; Liang, Weidong 1; Li, An 1
刊名	CHEMSUSCHEM
	2019-01-24
卷号	12 期号:2 页码:426-433
关键词	graphite hydrophobic polyurethane solar steam sponge
ISSN号	1864-5631
DOI	10.1002/cssc.201802406
英文摘要	Solar steam generation is a highly promising technology for harvesting solar energy and desalination. Here, a new solar steam generation system is introduced based on a surface-modified polyurethane sponge with bilayered structures for efficient solar steam generation. The top layer, coated with polydimethylsiloxane-modified graphite powder, serves as light-to-heat conversion layer with a broad optical absorption, whereas the lower part of the sponge acts as a thermal insulator with a low thermal conductivity in the wet state (0.13882 W m(-1) K-1). In addition, the strong hydrophobic wettability of the top layer (water contact angle: 148 degrees) enables self-floating behavior on water, which is beneficial for practical applications. The results show that compared with a silver-nanoparticle-doped sponge and an acid-etched sponge doped with silver nanoparticles the graphite-modified sponge (GS) exhibits the highest evaporation efficiency of 73.3% under 1 kW m(2) irradiation, which is 2.6 times that of pure water and far higher than that of untreated polyurethane sponge (36.0%). The GS shows excellent stability, and its evaporation efficiency remains unchanged even after immersion in water for one month. Based on its cost-efficient, simple, and scalable manufacturing process, excellent mechanical stability, and high recyclability, the GS shows great potential as an efficient photothermal material for a wide range of large-scale applications such as solar steam generation, light absorption, heat localization, and seawater desalination.
资助项目	National Natural Science Foundation of China[51663012][51462021] ; Natural Science Foundation of Gansu Province, China[1610RJYA001] ; Project of Collaborative Innovation Team, Gansu Province, China[052005] ; Innovation and Entrepreneurship Talent Project of Lanzhou[2017-RC-33]
WOS研究方向	Chemistry ; Science & Technology - Other Topics
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000459737500009
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/32159]
专题	石油化工学院
通讯作者	Li, An
作者单位	1.Lanzhou Univ Technol, Coll Petrochem Technol, Langongping Rd 287, Lanzhou 730050, Gansu, Peoples R China 2.Lanzhou City Univ, Expt Ctr, Lanzhou 730070, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Zheng,Mu, Peng,He, Jingxian,et al. Facile and Scalable Fabrication of Surface-Modified Sponge for Efficient Solar Steam Generation[J]. CHEMSUSCHEM,2019,12(2):426-433.
APA	Zhang, Zheng.,Mu, Peng.,He, Jingxian.,Zhu, Zhaoqi.,Sun, Hanxue.,...&Li, An.(2019).Facile and Scalable Fabrication of Surface-Modified Sponge for Efficient Solar Steam Generation.CHEMSUSCHEM,12(2),426-433.
MLA	Zhang, Zheng,et al."Facile and Scalable Fabrication of Surface-Modified Sponge for Efficient Solar Steam Generation".CHEMSUSCHEM 12.2(2019):426-433.