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Facile Synthesis of Large Scale Mesoporous TiO2 Microspheres by Template-free Hydrothermal Process: Their Photocatalysis Degradation
Author(s): Debabrata Sarkar; Kalyan K. Chattopadhyay
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Paper Abstract

In this study, well-crystallized mesoporous anatase TiO2 microspheres were synthesized by simple hydrothermal reaction. These spheres are submicrometer-sized (the diameter size of about 1 to 3 μm) and consist of packed nanocrystallites with diameters of ~5 to 9nm. The products were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM) and UV-vis spectrophotometer. The 3D TiO2 microspheres exhibited significant photocatalytic degradation and photocatalytic activity was evaluated via the photocatalytic oxidation of Rhodamine B (RhB) in air at room temperature. The result also shows that mesoporous microspheres followed Langmuir-Hinshelwood (L-H) kinetic model.

Paper Details

Date Published: 15 October 2012
PDF: 5 pages
Proc. SPIE 8549, 16th International Workshop on Physics of Semiconductor Devices, 854927 (15 October 2012); doi: 10.1117/12.927295
Show Author Affiliations
Debabrata Sarkar, Jadavpur Univ. (India)
Kalyan K. Chattopadhyay, Jadavpur Univ. (India)

Published in SPIE Proceedings Vol. 8549:
16th International Workshop on Physics of Semiconductor Devices
Monica Katiyar; B. Mazhari; Y N Mohapatra, Editor(s)

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