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

Abstract:

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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.

Info:

Periodical:

Advanced Materials Research (Volumes 239-242)

Edited by:

Zhong Cao, Xueqiang Cao, Lixian Sun, Yinghe He

Pages:

571-574

DOI:

10.4028/www.scientific.net/AMR.239-242.571

Citation:

X. C. Zhang et al., "Photocatalytic Activity of SiO2/TiO2 Supported on Glass Fiber under Vsible Light Irradiation", Advanced Materials Research, Vols. 239-242, pp. 571-574, 2011

Online since:

May 2011

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Price:

$35.00

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