Tuning the optical bandgap of TiO2-TiN composite films as photocatalyst in the visible light
Source abstract
Abstract
TiO2-TiN composite catalysts were prepared by oxidizing the TiN films in air at 350 °C. By adjusting the oxidation time to control the oxidation stage of TiN films, the optical band gap of the TiO2-TiN composites can be varied in a wide range from 1.68 eV to 3.23 eV. These composite films all showed red shift in photo-response towards the visible region, and depending on the optical band gap, some composite films exhibited good catalytic activity in the visible light region. This study provides a simple but effective method to prepare film photocatalyst working in visible light.
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Research context
OpenAlex topics: TiO2 Photocatalysis and Solar Cells · Advanced Photocatalysis Techniques · Copper-based nanomaterials and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Tsinghua University 1 The State Key Laboratory for New Ceramics and Fine Processing, School of Materials Science and Engineering, , Beijing 100084, China
High-Tech Institute of Xi'an 2 , Shanxi 710025, China
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