Super-hydrophobic tin oxide nanoflowers

Chen, Aicheng; Peng, Xinsheng; Koczkur, Kallum M.; Miller, B.

doi:10.1039/b407313d

Cited by 159 publications

(98 citation statements)

References 14 publications

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“…10 cleaning, water exclusion, avoidance of corrosion, and promotion of slip suggest numerous applications from protective coatings, MEMS, and aerosol collection to new protective fabrics for military use. 33,34 The nature of the water/SH surface is crucial to the realization of these practical applications.…”

Section: Introductionmentioning

confidence: 99%

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Investigating the Interface of Superhydrophobic Surfaces in Contact with Water

et al. 2005

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Public Reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comment regarding this burden estimates or any other aspect of this collection of information, including suggestions for reducing this burden, to Washington Headquarters Services, Directorate for information Operations and Reports, 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202-4302, and Investigating the interface of superhydrophobic surfaces in contact with water.. FUNDING NUMBERS DAAD1903102276. AUTHOR (S) Doshi, DA; Shah, PB; Singh, S; Branson, ED; Malanoski, AP; Watkins, EB; Majewski, J; van Swol, F; Brinker, CJ. Neutron reflectivity (NR) is used to probe the solid, liquid, vapor interface of a porous superhydrophobic (SH) surface submerged in water.Alow-temperature, low-pressure technique was used to prepare a rough, highly porous organosilica aerogel-like film. UV/ozone treatments were used to control the surface coverage of hydrophobic organic ligands on the silica framework, allowing the contact angle with water to be continuously varied over the range of 160° (superhydrophobic) to <10° (hydrophilic). NR shows that the superhydrophobic nature of the surface prevents infiltration of water into the porous film. Atomic force microscopy and density functional theory simulations are used in combination to interpret the NR results and help establish the location, width, and nature of the SH film-water interface. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES)University14. SUBJECT Neutron reflectivity (NR) is used to probe the solid, liquid, vapor interface of a porous superhydrophobic (SH) surface submerged in water. A low-temperature, low-pressure technique was used to prepare a rough, highly porous organosilica aerogel-like film. UV/ozone treatments were used to control the surface coverage of hydrophobic organic ligands on the silica framework, allowing the contact angle with water to be continuously varied over the range of 160°(superhydrophobic) to <10°(hydrophilic). NR shows that the superhydrophobic nature of the surface prevents infiltration of water into the porous film. Atomic force microscopy and density functional theory simulations are used in combination to interpret the NR results and help establish the location, width, and nature of the SH film-water interface. IntroductionWe all can recall seeing water droplets "bead up" on the leaves of plants. Most famous is the Lotus leaf, called the "symbol of purity" because of its self-cleaning properties. At very shallow angles of inclination or with the slightest wind, water droplets roll rather than flow. 1,2 The rolling droplets entrain particle contaminants and parasites, thereby cleaning them from the Lotus leaf surface. It is now recognized that the fascinating fluid behaviors observed for the Lotus plant, like the rolling and bouncing o...

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Section: Introductionmentioning

confidence: 99%

“…10 We have developed a simple, evaporation-driven procedure to deposit fractal SH coatings on arbitrary surfaces. It is derived from our earlier work on low-temperature/ low-pressure aerogel coatings.…”

Section: Introductionmentioning

confidence: 99%

Investigating the Interface of Superhydrophobic Surfaces in Contact with Water

et al. 2005

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“…More recently, controlled growth of nanostructures such as nanotubes, nanowires, nanorods, nanoflowers, nanoneedles leading to superhydrophobic behavior has also been demonstrated as displayed in Figure 10 [93][94][95][96][97][98]. Nanostructured ZnO, TiO 2 , etched silicon have been used largely to create superhydrophobic surfaces because of their diverse applications.…”

Section: "Designer" Superhydrophobic Surfacesmentioning

confidence: 99%

Metal oxide thin films and nanostructures for self-cleaning applications: current status and future prospects

Krishna

Madhurima

Purkayastha

2013

Eur. Phys. J. Appl. Phys.

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Abstract. Surfaces that exhibit reversible wettability toward water are extremely important for a variety of technological applications. In this context, the development of superhydrophobic and superhydrophilic surfaces for self-cleaning applications has been receiving a great deal of attention in the last few years. In this review, an overview of the current state-of-science and technology of self-cleaning surfaces is presented. The current understanding of physics of wetting leading to surfaces with predictive, controllable and reversible wettability is first presented. The review then focuses on materials, mainly metal oxides and their composites, employed for self-cleaning applications. It is shown that, although conventionally oxides and polymers are considered for self-cleaning applications, recent developments point toward the use of artificially engineered surfaces with hierarchical roughness. Applications of self-cleaning films in nonconventional areas such as protection of fabrics, solar cells and structures related to cultural heritage are discussed. The review ends with an outlook for the future in terms of science and technology of self-cleaning surfaces.

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“…Metal nanomaterials possess many properties, such as size-related optical, adsorbents, electronic and catalytic properties. Three-dimensional nanomaterials with various morphologies, nanoholes [1], nanorods [2], nanotubes [3], nanowires [4] and nanoflowers [5] have been previously reported, most of which were fabricated in a single scale. Recently, hierarchical structures [6] are becoming an effective way to obtain a functional nanomaterial, such as superhydrophobic material.…”

Section: Introductionmentioning

confidence: 99%