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Facile electrochemical synthesis of anatase nano-architectured titanium dioxide films with reversible superhydrophilic behavior

Title
Facile electrochemical synthesis of anatase nano-architectured titanium dioxide films with reversible superhydrophilic behavior
Authors
Sorcar, S.[Sorcar, Saurav]Razzaq, A.[Razzaq, Abdul]Tian, H.[Tian, Haining]Grimes, C.A.[Grimes, Craig A.]In, S.-I.[In, Su Il]
DGIST Authors
Sorcar, S.[Sorcar, Saurav]; Razzaq, A.[Razzaq, Abdul]; In, S.-I.[In, Su Il]
Issue Date
2017
Citation
Journal of Industrial and Engineering Chemistry, 46, 203-211
Type
Article
Article Type
Article
Keywords
Crystal SymmetryDeionized WaterElectro-Chemical AnodizationElectromagnetic Wave AbsorptionFilm PreparationHydrophilicityLight AbsorptionNano-FibrilsNano-StructuresNanofibersNanowebsOxidesSuper-HydrophilicSurface ReactionsSurface RoughnessSurface TopologyTitaniumTitanium DioxideTopology
ISSN
1226-086X
Abstract
In the present work we report a facile and readily-scalable electrochemical anodization technique for preparation of superhydrophilic TiO2 films having reversible wettability properties. The electrochemically anodized Titanium (Ti) foils manifest nanoscale topographical features, interconnected nanowebs and nanofibrils, that enhance both surface roughness and light absorption. After 5 min of UV illumination a water contact angle (WCA) of 4.8° is measured for a 5 μL deionized water droplet, while after 5 min of whitelight illumination the WCA is 3.2°. Moreover, under UV illumination the superhydrophilic Ti foils exhibit self-cleaning properties. Key factors contributing to the superhydrophilic character include surface topology, and surface chemical reactions. © 2016 The Korean Society of Industrial and Engineering Chemistry
URI
http://hdl.handle.net/20.500.11750/1535
DOI
10.1016/j.jiec.2016.10.032
Publisher
Korean Society of Industrial Engineering Chemistry
Related Researcher
  • Author In, Su Il Green and Renewable Energy for Endless Nature(GREEN) Lab
  • Research Interests CO2 conversion to hydrocarbon fuels; Water splitting for hydrogen generation; Quantum dot devices; Dye sensitized solar cells; Environmental remediation; Synthesis of functional nanomaterials; CO2 연료전환; 수소생산을 위한 광전기화학적 물분해; 양자점 태양전지; 염료감응 태양전지; 공해물질 저감연구; 기능성 나노소재 개발
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Collection:
Energy Science and EngineeringGreen and Renewable Energy for Endless Nature(GREEN) Lab1. Journal Articles


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