A Large-Area Patterned TiO2/SnO2 Bilayer Type Photocatalyst Prepared by Gravure Printing
Source: Journal of Sol-Gel Science and Technology, Volume 27, Number 3, July 2003 , pp. 301-307(7)
Anatase TiO2 films (thickness = 50 nm) were formed in shape of stripes (width = 1.6 mm, interval = 0.4 mm) by gravure printing on commercially available SnO2 coated soda-lime glass substrates (dimension = 300 × 300 mm). Its photocatalytic activity was examined for the gas-phase oxidation of CH3CHO in comparison with a simple TiO2 photocatalyst formed on a silica glass. The patterned TiO2/SnO2 bilayer type photocatalyst showed a high photocatalytic activity in an H2O bearing atmosphere. On the other hand, neither the patterning nor stacking effect was observed for the same reaction under dry conditions. These results could be explained in terms of the reducing potential of the electrons in the conduction band of the SnO2 layer.
Document Type: Research Article
Affiliations: 1: IT Marketing Department, Nippon Sheet Glass Co., Ltd., 2-1-7 Kaigan, Minato-ku, Tokyo 105-8552, Japan. TetsuroKawahara@mail.nsg.co.jp 2: Technical Planning & Administration Department, Nippon Sheet Glass Co., Ltd., 2-1-7 Kaigan, Minato-ku, Tokyo 105-8552, Japan. KazuhiroDoshita@mail.nsg.co.jp 3: Molecular Engineering Institute, Kinki University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan. firstname.lastname@example.org
Publication date: 2003-07-01