Research Article
Template-Free Preparation and Photocatalytic and Photoluminescent Properties of Brookite TiO2 Hollow Spheres
Figure 3
(a) TG-DTA curves, (b) FT-IR spectrum, and (c) UV-visible diffusion reflectance spectrum. Insert shows the energy dependence of for the sample. (d) XPS survey spectrum and high-resolution XPS spectrum for O 1s (e) and Ti 2p (f) of the sample.
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