《A novel method to prepare superhydrophobic》.pdf

Chemical Engineering Journal 210 (2012) 182–187 Contents lists available at SciVerse ScienceDirect Chemical Engineering Journal journal homepage: www.else /locate/cej A novel method to prepare superhydrophobic, UV resistance and anti-corrosion steel surface Tayirjan T. Isimjan a, Taoye Wang b, Sohrab Rohani c,⇑ a Division of Physical Sciences and Engineering, Solar and Photovoltaic Engineering Center, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia b Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, PR China c Department of Chemical and Biochemical Engineering, University of Western Ontario, 1151 Richmond Street, London, ON, Canada N6A 3K7 h i g h l i g h t s A new superhydrophobic surface with UV and anti-corrosion properties. Layer-by-layer deposition of titania and silica nanoparticles. Functionalized with PTES (1H,1H,2H,2H-Perfluorodecyltriethoxysilane). Static contact angles 165, advanced angles 170 and slide angle 1. a r t i c l e i n f o a b s t r a c t Article history: Both TiO2 and SiO2 coated steel surfaces containing micro- and nanoscale binary structures with different Received 6 June 2012 surface roughness were successfully fabricated by means of a facile layer by layer deposition process fol- Received in revised form 20 August 2012 lowed by heat treatment. The resulting surfaces were modified by the low free energy chemical PTES Accepted 24 August 2012 (1H,1H,2H