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J. Korean Ceram. Soc. > Volume 52(3); 2015 > Article
Journal of the Korean Ceramic Society 2015;52(3): 221.
doi: https://doi.org/10.4191/kcers.2015.52.3.221
Photo-catalytic Properties of TiO2 Nanotube Arrays Sensitized with In2S3 under Visible-light Irradiation
Hyun Kim, Bee Lyong Yang
School of Advanced Materials and System Engineering, Kumoh National Institute of Technology
ABSTRACT
In this work, we report on the preparation of the anodically-grown $TiO_2$ nanotube arrays sensitized with $In_2S_3$ nanoparticles by using the SILAR (successive ionic layer adsorption and reaction) process. We evaluate the photo-catalytic properties of the prepared hetero-structures under visible-light illumination. The results reveal that the $TiO_2/In_2S_3$ system has enhanced photo-catalytic characteristics including higher chopping height. Improved performance of the heterojunction is attributed to the narrower band gap of $In_2S_3$ and its favorable position within the conduction band relative to that of $TiO_2$.
Key words: Titanium dioxide ($TiO_2$) nanotube, Indium sulfide (In2S3), Visible light, Photo-catalyst
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