Ice-phobic honeycomb-like nano SnO2 surfaces: Effect of pretreatment process on sustainable superhydrophobicity

IF 7.5 Q1 CHEMISTRY, PHYSICAL
Elham Aghajanpour Amiri , Reza Norouzbeigi , Elmira Velayi
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引用次数: 0

Abstract

Superhydrophobic/Icephobic tin oxide honeycomb-like nanostructures were synthesized on copper surfaces via facile controlled hydrothermal method. Effects of two crucial fabrication parameters including etching treatment variables and presence the seed layer, on the morphology and wettability of the resulted coating were determined. The chemical composition, wettability characteristics, and topographical properties of the samples were characterized by FE-SEM, stylus profilometry, contact angle measurement, and ATR-FTIR analyses. The wettability evaluations confirmed that the tin oxide deposited on the copper oxide (seed layer) exhibited excellent superhydrophobic properties. The prepared hierarchical surfaces showed high water contact angles (CA) as well as 169. 5±1 with a contact angle hysteresis (CAH) of 5°± 1°. Moreover, the results confirmed that the etching treatment and the presence of the seed layer can promote the morphology to a uniform state. The ice adhesion strength of the obtained superhydrophobic surfaces reached to 30.4 kPa, showing an excellent ice-phobicity. The mechanical resistance and/or sustainability of the optimized sample was also passed successfully under 10 abrasion test cycles.

疏冰蜂窝状纳米二氧化锡表面:预处理工艺对可持续超疏水性能的影响
通过简便的可控水热法在铜表面合成了超疏水/疏油氧化锡蜂窝状纳米结构。研究确定了蚀刻处理变量和种子层的存在这两个关键制造参数对所得涂层的形貌和润湿性的影响。样品的化学成分、润湿性特征和形貌特性通过 FE-SEM、测针轮廓仪、接触角测量和 ATR-FTIR 分析进行了表征。润湿性评估证实,沉积在氧化铜(种子层)上的氧化锡具有优异的超疏水特性。制备的分层表面显示出很高的水接触角(CA)以及 169.5∘±1∘,接触角滞后(CAH)为 5°± 1°。此外,研究结果还证实,蚀刻处理和种子层的存在可促进形貌达到均匀状态。所获得的超疏水表面的冰粘附强度达到 30.4 kPa,显示出极佳的疏冰性。优化样品的机械阻力和/或可持续性也在 10 次磨损测试循环中顺利通过。
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来源期刊
CiteScore
8.10
自引率
1.60%
发文量
128
审稿时长
66 days
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