Facile and Scalable Fabrication of Surface-Modified Sponge for Efficient Solar Steam Generation | |
Zhang, Zheng1; Mu, Peng1; He, Jingxian1,2; Zhu, Zhaoqi1; Sun, Hanxue1; Wei, Huijuan2; Liang, Weidong1; Li, An1 | |
刊名 | CHEMSUSCHEM
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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. |
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