Abstract
It has been reported that well-crystallized faceted particles showed enhanced photocatalytic activity compared to normal spherical shaped particles with poor crystallinity. Therefore, great attention has long been paid to preparation of exposed crystal face-controlled TiO2 nanoparticles in order to develop a high active TiO2 photocatalyst. In this chapter, preparation of morphology-controlled rutile and brookite TiO2 nanorods with exposed crystal faces by hydrothermal technique is summarized. The obtained rutile and brookite TiO2 nanorods showed high levels of activity for degradation of organic compounds compared to the activity levels of anatase fine particles (ST-01), which is one of the most famous and high active commercially available photocatalysts developed for environmental cleanup. In addition, the detailed technology of crystal face selective modification of metal compounds technology to produce morphology-controlled, visible light responsive rutile and brookite TiO2 nanorods is discussed. The metal ion modified rutile and brookite TiO2 nanorod thus produced shows much higher activity than commercially available conventional visible light responsive N-doped TiO2.
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Ohno, T. (2016). Development of Visible Light Responsive Morphology Controlled TiO2 Photocatalyst. In: Yamashita, H., Li, H. (eds) Nanostructured Photocatalysts. Nanostructure Science and Technology. Springer, Cham. https://doi.org/10.1007/978-3-319-26079-2_4
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DOI: https://doi.org/10.1007/978-3-319-26079-2_4
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