Journal
JOURNAL OF HAZARDOUS MATERIALS
Volume 167, Issue 1-3, Pages 413-417Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jhazmat.2008.12.139
Keywords
N-doped; Hollow sphere; Titania; Photocatalysis; Carbon sphere
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Funding
- National Natural Science Foundation of China [60121101]
- Guangdong Province and Education Department [2007A090302018]
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N-doped titania hollow spheres were prepared using hydrothermally prepared carbon spheres as template. The prepared hollow spheres were characterized by X-ray diffraction (XRD), transmission electron microscope (TEM), Brunauer-Emmett-Teller (BET), X-ray photoelectron spectroscopy (XPS) and UV-vis diffuse reflectance spectrum (DRS). The photocatalytic activity of as-prepared hollow titania spheres was determined by degradation of Reactive Brilliant Red dye X-3B (C.I. reactive red 2) under visible light irradiation, and was compared to commercial P25 titania. It was revealed that the photocatalytic activity of the titania hollow spheres enhanced a lot. The apparent rate constant of the titania hollow spheres was almost 17 times as that of P25 titania. (C) 2009 Elsevier B.V. All rights reserved.
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