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首页> 外文期刊>Applied Surface Science >A simple, rapid and single step method for fabricating superhydrophobic titanium surfaces with improved water bouncing and self cleaning properties
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A simple, rapid and single step method for fabricating superhydrophobic titanium surfaces with improved water bouncing and self cleaning properties

机译：一种简单，快速，单步的制造超疏水钛表面的方法，该方法具有改善的水弹起和自清洁性能

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摘要

We report a simple, rapid, inexpensive and eco-friendly method for fabricating super hydrophobic (SHP) titanium surface using ethanolic solution of myristic acid and HCl through simultaneous anodization and adsorption. The coating performance is optimized by varying the anodization potential, acidic concentration and anodization duration. The prepared superhydrophobic surfaces are characterized using water contact angle (WCA), Fourier transform infrared (FTIR) spectroscopy, Laser Raman Spectroscopy (LRS), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Scanning electron microscopy (SEM) and Energy-dispersive X-ray spectroscopy (EDX). At an optimal anodization potential, the coated surface is found to be densely populated with hierarchical micro-nanoclusters of titanium dioxide adsorbed with myristic acid, exhibiting a maximum WCA of 176.3 degrees +/- 1 degrees with a sliding angle of 1 degrees. SHP surface showed surface features with layered ridges decorated with submicron sized aggregates. The liquid-air area fraction on the prepared SHP surface is similar to 0.97, with an asperity slope psi > 71 degrees. SHP surface exposed to microbial cultures for 48 h showed 50% reduction in bacterial adhesion. Bouncing dirt removal and bouncing of drops suggest better cleaning efficacy and excellent water repellency of the SHP surface. The fast fabrication, excellent anti biofouling, chemical and mechanical stability of the SHP coating offer interesting applications, and also opens up new ways for creating stable superhydrophobic titanium surfaces with excellent self cleaning characteristics.
机译：我们报告了一种通过同时阳极氧化和吸附使用肉豆蔻酸和HCl的乙醇溶液制造超疏水（SHP）钛表面的简单，快速，廉价和环保的方法。通过改变阳极氧化电位，酸性浓度和阳极氧化持续时间来优化涂层性能。使用水接触角（WCA），傅立叶变换红外（FTIR）光谱，激光拉曼光谱（LRS），X射线衍射（XRD），X射线光电子能谱（XPS），扫描电子显微镜（ SEM和能量色散X射线光谱仪（EDX）。在最佳的阳极氧化潜力下，发现涂覆的表面密布有肉豆蔻酸吸附的二氧化钛分层的微纳米簇，其最大WCA为176.3度+/- 1度，滑动角为1度。 SHP表面显示出表面特征，并带有装饰有亚微米级聚集体的分层脊。制备的SHP表面上的液体空气面积分数与0.97相似，其粗糙度斜率psi> 71度。暴露于微生物培养物48小时的SHP表面显示细菌附着力降低了50％。弹起的污垢去除和弹跳的液滴表明，SHP表面具有更好的清洁效果和出色的防水性。 SHP涂层的快速制造，出色的抗生物结垢，化学和机械稳定性提供了有趣的应用，并且还开辟了新的方法来创建具有出色的自清洁特性的稳定的超疏水钛表面。

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  • 来源
    《Applied Surface Science》 |2020年第may15期|145636.1-145636.16|共16页
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  • 作者单位

    Indira Gandhi Ctr Atom Res Homi Bhabha Natl Inst Met & Mat Grp Corros Sci & Technol Div Kalpakkam 603102 Tamil Nadu India|Univ Calicut Malappuram 673635 Kerala India;

    Indira Gandhi Ctr Atom Res Homi Bhabha Natl Inst Met & Mat Grp Corros Sci & Technol Div Kalpakkam 603102 Tamil Nadu India;

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  • 正文语种 eng
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  • 关键词

    Anodization; Superhydrophobicity; Self cleaning; Antibacterial; Coating; Water contact angle;

    机译：阳极氧化;超疏水性自清洁;抗菌;涂层;水接触角;

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