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Photocatalytic Activity of SiO2/TiO2 Supported on Glass Fiber under Vsible Light Irradiation

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Abstract:

A SiO2/TiO2 supported on glass fibers photocatalyst with visible light activity were synthesized by sol-gel technology, butyl titanate as a Ti source, and tetraethylorthosilicate (TEOS) as a Si source. The photocatalytic activitie under visible light of SiO2/TiO2 supported on glass fibers were evaluated by the photocatalytic decomposition of methylene blue. The samples were characterized by scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS), UV-Vis diffuse reflectance spectroscopy (UV-Vis-DRS). The results show that the optical absorption edges of the SiO2/TiO2 showed red shift with increasing the dopant of SiO2. The sample of SiO2/TiO2 supported on glass fiber (atomic ratio of Si/Ti=0.05) has the highest catalytic efficiency under visible light irradiation.

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Advanced Materials, CEAM 2011 View Preview

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Periodical:

Advanced Materials Research (Volumes 239-242)

Pages:

571-574

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.239-242.571

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Online since:

May 2011

Authors:

Xiang Chao Zhang, Yun Long Li, Zhong Xin Lin, Shi Ying Zhang

Keywords:

Glass Fiber, Photocatalytic Activity, TiO2, Visible Light Irradiation

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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