中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Durable Superhydrophobic Surfaces with Self-Generated Wenzel Sites for Efficient Fog Collection

文献类型:期刊论文

作者Zhang, Jiaren1; Li, Bucheng1; Zhou, Zhengqiang2; Zhang, Junping1
刊名Small
出版日期2024
卷号20期号:30页码:2312112
关键词Fog collection Nanofilaments Silanes Superhydrophobic Thiol-ene click reaction
DOI10.1002/smll.202312112
英文摘要

Harvesting freshwater from fog is one of the possible solutions to the global water scarcity crisis. Surfaces with both hydrophobic and hydrophilic regions are extensively employed for this purpose. Nevertheless, the longevity of these surfaces is still constrained by their delicate surface structures. The hydrophilic zones may become damaged or contaminated after repeated use, thereby compromising their effectiveness in fog collection. The preparation of generally applicable durable superhydrophobic coatings with self-generated Wenzel sites is reported here for long-term efficient and stable fog collection. The coatings are prepared by depositing the poly(tannic acid) coating as the primer layer on various substrates, self-assembly of trichlorovinylsilane into staggered silicone nanofilaments, and then thiol–ene click reaction with 1H,1H,2H,2H-perfluorodecanethiol. The coatings demonstrate remarkable static superhydrophobicity, robust impalement resistance, and stable self-generated Wenzel sites for water droplets. Therefore, the fog collection rate (FCR) of the coatings reaches 2.13 g cm−2 h−1 during 192 h continuous fog collection, which is triple that of bare substrate and outperforms most previous studies. Moreover, the systematic experiments and models have revealed that the key factors for achieving high FCR on superhydrophobic coatings are forming condensed droplets ≈1 mm in critical radius and a Wenzel site proportion of 0.3–0.4.

源URL[http://ir.licp.cn/handle/362003/30828]  
专题兰州化学物理研究所_环境材料与生态化学研究发展中心
通讯作者Zhang, Junping
作者单位1.Center of Eco-Material and Green Chemistry Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou 730000, Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing 100049, P. R. China
2.Gansu Water Investment Co., Ltd. Lanzhou 730000, P. R. China
推荐引用方式
GB/T 7714
Zhang, Jiaren,Li, Bucheng,Zhou, Zhengqiang,et al. Durable Superhydrophobic Surfaces with Self-Generated Wenzel Sites for Efficient Fog Collection[J]. Small,2024,20(30):2312112.
APA Zhang, Jiaren,Li, Bucheng,Zhou, Zhengqiang,&Zhang, Junping.(2024).Durable Superhydrophobic Surfaces with Self-Generated Wenzel Sites for Efficient Fog Collection.Small,20(30),2312112.
MLA Zhang, Jiaren,et al."Durable Superhydrophobic Surfaces with Self-Generated Wenzel Sites for Efficient Fog Collection".Small 20.30(2024):2312112.

入库方式: OAI收割

来源:兰州化学物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。