Study on TiO₂/Tourmaline Composite Photocatalyst Materials

Abstract:

TiO₂/tourmaline composite photocatalyst materials were fabricated mainly by the sol-gel technique. Study found that, TiO₂/tourmaline composite photocatalyst materials, under the bombardment by electron beam in SEM, would turn to be brighter and attract each other, and the electrostatic gravitation among the TiO₂/tourmaline composite photocatalyst materials granules grow up evidently on their surfaces with the accumulations of electron from the electron probe, so as to be strong enough to force the TiO2/tourmaline composite photocatalyst materials granules to be shifted rapidly and accumulated into clusters ultimately, and the granules which were heat treatment on 600°C for 3h shifted most strongly. And the average absorption rate of TiO₂/tourmaline composite photocatalyst material was stronger than nano-TiO₂, in the visible region of wavelength 400-500nm. In addition, TiO₂/tourmaline composite photocatalyst materials were capable of activating water molecules to reduce agglomeration of water molecules, and to increase the amount of dissolved oxygen in the Photocatalytic reaction system.

• Periodical: Applied Mechanics and Materials (Volumes 423-426)
• Pages: 67-71
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.423-426.67
• Online since: September 2013
• Authors: Yan Wen Feng
• Keywords: Photocatalyst, Sol-Gel, Titania, Tourmaline

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