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http://dx.doi.org/10.3740/MRSK.2017.27.5.289

Fabrication and Characterization of Y2Ti2O7 Powder and Thick Film by Chemical Processing  

Lee, Won-Joon (School of Nano & Advanced Materials Engineerin, Changwon National University)
Choi, Yeon-Bin (School of Nano & Advanced Materials Engineerin, Changwon National University)
Bae, Dong-Sik (School of Nano & Advanced Materials Engineerin, Changwon National University)
Publication Information
Korean Journal of Materials Research / v.27, no.5, 2017 , pp. 289-293 More about this Journal
Abstract
$Y_2Ti_2O_7$ nanoparticles (0.3 mol%) have been successfully synthesized by the co-precipitation process. The samples, adjusted to pH7 with ammonia solution as catalyst and calcined at $700{\sim}900^{\circ}C$, exhibit very fine particles with close to spherical shape and average size of 10-30 nm. It was possible to control the size of the synthesized $Y_2Ti_2O_7$ particles by manipulating the conditions. The $Y_2Ti_2O_7$ nanoparticles were coated on a glass substrate by a dipping coating process with inorganic binder. The $Y_2Ti_2O_7$ solution coated on the glass substrate had excellent adhesion of 5B; pencil hardness test results indicated an excellent hardness of 6H. The thickness of the thick film was about $30{\mu}m$. Decomposition of MB on the $Y_2Ti_2O_7$ thin film shows that the photocatalytic properties were excellent.
Keywords
$Y_2Ti_2O_7$; co-precipitation; thick film; methylene blue; photocatalytic; coating;
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