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Photoactivities of the visible-light-activated mixed-phase carbon-containing titanium dioxide: The effect of carbon incorporation

Paper ID Volume ID Publish Year Pages File Format Full-Text
48416 46506 2008 9 PDF Available
Title
Photoactivities of the visible-light-activated mixed-phase carbon-containing titanium dioxide: The effect of carbon incorporation
Abstract

Photoactivities of the carbon-containing nano-structured titanium dioxide (TiO2) prepared using a modified sol–gel method as visible-light-responsive photocatalysts were studied. This research aimed to compare four carbon-containing TiO2 samples, prepared in different conditions, with a commercial nano-structured TiO2 powders. The prepared titanium dioxide powders were analyzed using Raman spectroscopy and scanning electron microscopy with energy dispersive X-ray spectroscopy. It is found carbon-containing TiO2 nanoparticles prepared under calcinations at 200 °C exhibited high photocatalytic activity for decoloring of methylene blue and the removal of nitrogen monoxide under both ultraviolet and visible-light illumination. The calcination temperature and incorporated carbons affect the particle size and lattice structure of TiO2, and hence the photoactivities. The superior photocatalytic effects were attributed to the carbon-containing mixed anatase and rutile phase in the crystal structure of the TiO2.

Keywords
Visible-light-activated TiO2; Carbon-containing TiO2; Confocal Raman mapping; Photoactivity
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 79, Issue 1, 21 February 2008, Pages 8–16
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
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