Enhanced photocatalytic activity of TiO2/SiO2–CdS nanocomposite under direct sunlight for degradation of methylene blue

The TiO 2 NPs is a common used multifunctional material, because of its wide variety of application. While numerous natural mixes can be deteriorated and mineralized by oxidation and diminishment forms alluring on the surface of TiO 2 . A novel photocatalytic TiO 2 /SiO 2 –CdS nanocomposite were suc...

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Bibliographic Details
Published in:Journal of materials science. Materials in electronics 2017-03, Vol.28 (6), p.5063-5069
Main Authors: Govindhan, P., Pragathiswaran, C.
Format: Article
Language:English
Subjects:
Catalytic activity
Characterization and Evaluation of Materials
Chemistry and Materials Science
Diffuse reflectance spectroscopy
Dyes
Energy dispersive X ray spectroscopy
Field emission microscopy
Fourier transforms
Infrared spectroscopy
Materials Science
Methylene blue
Nanocomposites
Optical and Electronic Materials
Oxidation
Photocatalysis
Photodegradation
Scanning electron microscopy
Silicon dioxide
Sol-gel processes
Spectrum analysis
Sunlight
Titanium dioxide
X-ray diffraction
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Summary:The TiO 2 NPs is a common used multifunctional material, because of its wide variety of application. While numerous natural mixes can be deteriorated and mineralized by oxidation and diminishment forms alluring on the surface of TiO 2 . A novel photocatalytic TiO 2 /SiO 2 –CdS nanocomposite were successfully preparation of sol–gel method and hydrothermal method. The developed nanocomposite was characterized by X-ray diffraction (XRD), Raman spectroscopy; UV–Visible Diffuse reflectance spectroscopy (DRS), Field emission scanning electron microscope (FE-SEM), Energy dispersive X-ray spectroscopy (EDAX) and Fourier transform infrared spectroscopy (FT-IR). The TiO 2 /SiO 2 –CdS nanocomposite has been used in the photocatalytic degradation of methylene blue (MB) dye under direct sunlight measured by UV–Visible spectroscopy. CdS NPs homogeneous surface exposure on the surface of TiO 2 /SiO 2 nanocomposite was highly enhancing photocatalytic dye degradation of methylene blue.
ISSN:0957-4522
1573-482X
DOI:10.1007/s10854-016-6164-z