Superhydrophobic surfaces have attracted significant attention because of their potential applications in various industrial fields. In this study, a chemical process for fabricating ZnO nanowires on steel substrates is developed by using a chemical etching and hydrothermal synthesis method. The resultant surface exhibits binary micro/nanostructures. The modified sample exhibits a water contact angle of 164.9° and a sliding angle of 2.3° for a 5-μL water droplet. An experimental setup is created to measure the drag friction on the surface of the sample. Experimental results show that the drag reduction radio for the as-prepared sample is 40–50%.
BarthlottW, NeinhuisC.Purity of the sacred lotus, or escape from contamination in biological surfaces. Planta. 1997;202:1–8. doi: 10.1007/s004250050096
2.
NeinhuisC, BarthlottW.Characterization and distribution of water-repellent, self-cleaning plant surfaces. Ann Bot. 1997;79:667–677. doi: 10.1006/anbo.1997.0400
3.
JiW, WangZ, MaJ, Hydrothermal synthesis of boehmite on alumina membranes for superhydrophobic surfaces. Surf Eng. 2016;32:102–107. doi: 10.1179/1743294414Y.0000000394
YaoX, SongY, JiangL.Applications of bio-inspired special wettable surfaces. Adv Mater. 2011;23:719–734. doi: 10.1002/adma.201002689
6.
BhushanB, JungYC.Natural and biomimetic artificial surfaces for superhydrophobicity, self-cleaning, low adhesion, and drag reduction. Prog Mater Sci. 2011;56:1–108. doi: 10.1016/j.pmatsci.2010.04.003
7.
YuHB, LiRF.Preparation and properties of biomimetic superhydrophobic composite coating. Surf Eng. 2016;32:79–84. doi: 10.1179/1743294414Y.0000000301
TangXM, SiY, GeJL, In situ polymerized superhydrophobic and superoleophilic nanofibrous membranes for gravity driven oil–water separation. Nanoscale. 2013;5:11657–11664. doi: 10.1039/c3nr03937d
10.
HuangYF, HuangC, ZhongYL, Preparing superhydrophobic surfaces with very low contact angle hysteresis. Surf Eng. 2013;29:633–636. doi: 10.1179/1743294412Y.0000000087
11.
FengWQ, LiLX, UedaE, Surface patterning via Thiol-Yne click chemistry: an extremely fast and versatile approach to superhydrophilic-superhydrophobic micropatterns. Adv Mater Interfaces. 2014;1:1400269. doi: 10.1002/admi.201400269
12.
PanG, HuangQ, HaibaoH.Study on wettability of superhydrophobic surface and its application. Mater Rev. 2009;23:64–67.
13.
LiangJ, HuY, WuY.Facile formation of superhydrophobic silica-based surface on aluminum substrate with tetraethylorthosilicate and vinyltriethoxysilane as co-precursor and its corrosion resistant performance in corrosive NaCl aqueous solution. Surf Coating Technol. 2014;240:145–153. doi: 10.1016/j.surfcoat.2013.12.028
14.
ZhangX, GuoY, ZhangZ.Self-cleaning superhydrophobic surface based on titanium dioxide nanowires combined with polydimethylsiloxane. Appl Surf Sci. 2013;284:319–323. doi: 10.1016/j.apsusc.2013.07.100
15.
TangXM, SiY, GeJL, Gravity driven separation of emulsified oil-water mixtures utilizing in situ polymerized superhydrophobic and superoleophilic nanofibrous membranes. J Mater Chem A. 2013;1:14071–14074. doi: 10.1039/c3ta13385k
LiL, BreedveldV, HessDW.Creation of superhydrophobic stainless steel surfaces by acid treatments and hydrophobic film deposition. ACS Appl Mater Interfaces. 2012;4:4549–4556. doi: 10.1021/am301666c
24.
WangN, XiongD, LiM.Superhydrophobic surface on steel substrate and its anti-icing property in condensing conditions. Appl Surf Sci. 2015;355:226–232. doi: 10.1016/j.apsusc.2015.06.203
25.
JohnR, AshokreddyA, VijayanC, Single- and few-layer graphene growth on stainless steel substrates by direct thermal chemical vapor deposition. Nanotechnology. 2011;22:165701–165707. doi: 10.1088/0957-4484/22/16/165701
26.
SteinbergerA, Cottin-BizonneC, KleimannP, High friction on a bubble mattress. Nat Mater. 2007;6:665–668. doi: 10.1038/nmat1962
27.
RodriguesA, AlvesMCM, MoraisJ.Self-assembled nanocolumnar ZnO films chemically deposited on stainless steel with controlled morphology and thickness. Mater Lett. 2014;114:122–125. doi: 10.1016/j.matlet.2013.09.115
28.
XuC, ShinP, CaoL, Preferential growth of long ZnO nanowire array and its application in dye-sensitized solar cells. J Phys Chem C. 2010;114:125–129. doi: 10.1021/jp9085415
29.
MomneiMM, MirhoseiniSM.ZnO nanorod films fabricated on zinc foil for photoelectrochemical water splitting. Surf Eng. 2014;31:139–146.
30.
ZhangHF, YinL, LiL, Wettability and drag reduction of a Superhydrophobic aluminum surface. RSC Adv. 2016;6:14034–14041. doi: 10.1039/C5RA23842K
31.
LiuC, SuF, LiangJ, Facile fabrication of superhydrophobic cerium coating with micro-nano flower-like structure and excellent corrosion resistance. Surf Coat Technol. 2014;258:580–586. doi: 10.1016/j.surfcoat.2014.08.032
