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http://dx.doi.org/10.4191/kcers.2015.52.3.221

Photo-catalytic Properties of TiO2 Nanotube Arrays Sensitized with In2S3 under Visible-light Irradiation  

Kim, Hyun (School of Advanced Materials and System Engineering, Kumoh National Institute of Technology)
Yang, Bee Lyong (School of Advanced Materials and System Engineering, Kumoh National Institute of Technology)
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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 $TiO_2$.
Keywords
Titanium dioxide ($TiO_2$) nanotube; Indium sulfide (In2S3); Visible light; Photo-catalyst;
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