期刊
ACS APPLIED MATERIALS & INTERFACES
卷 2, 期 12, 页码 3636-3641出版社
AMER CHEMICAL SOC
DOI: 10.1021/am100808v
关键词
superhydrophobic surface; rapid formation; air-plasma treatment; wettability transition; smart; regenerative
资金
- National Nature Science Foundation of China [50773089, 50835009]
- Innovative Group Foundation from NSFC [50721062]
- National 973 Project [2007CB607601]
We have developed a facile and time-saving method to prepare superhydrophobic surfaces on copper sheets. Various surface textures composed of Cu(OH)(2) nanorod arrays and CuO microflowers/Cu(OH)(2) nanorod arrays hierarchical structure were prepared by a simple solution-immersion process. After chemical modification with stearic acid, the wettability of the as prepared surfaces was changed from superhydrophobicity to superhydrophilicity. The shortest processing time for fabrication a superhydrophobic surface was 1.5 min. Interestingly the rapid wettability transition between superhydrophobicity and superhydrophilicity can be realized on the prepared surfaces with ease by the alternation of air-plasma treatment and stearic acid coating. It took just 2 min to complete the whole wettability transition. Additionally, the regenaration of the superhydrophobic surface is also considered regarding its application.
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