Sonochemical Synthesis of Mg-TiO^sub 2^ nanoparticles for persistent Congo red dye degradation

In this article, modified TiO2 and Mg-TiO2 nanoparticles was prepared by the facile sonochemical method. The crystal structure evolution and elemental composition were analyzed by X-ray crystallography and X-ray photoelectron spectroscopy. The calculated band gap energy of Mg-TiO2 nanoparticles was...

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Bibliographic Details
Published inJournal of photochemistry and photobiology. A, Chemistry. Vol. 346; p. 559
Main Authors Bhagwat, Ujwala O, Wu, Jerry J, Asiri, Abdullah M, Anandan, Sambandam
Format Journal Article
LanguageEnglish
Published Lausanne Elsevier BV 01.09.2017
Subjects
Band gap
Catalysis
Catalytic activity
Chemical composition
Chemical elements
Crystal structure
Crystallography
Degradation
Dyes
Energy gap
Fourier transforms
Irradiation
Light irradiation
Magnesium
Nanoparticles
Photodegradation
Photoelectron spectroscopy
Raman spectroscopy
Spectroscopy
Studies
Titanium dioxide
X-ray crystallography
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Summary:In this article, modified TiO2 and Mg-TiO2 nanoparticles was prepared by the facile sonochemical method. The crystal structure evolution and elemental composition were analyzed by X-ray crystallography and X-ray photoelectron spectroscopy. The calculated band gap energy of Mg-TiO2 nanoparticles was lower than that of pure TiO2-P25. The Fourier Transform Infrared (FT-IR) spectral study established the substitution of Mg2+ on the TiO2 surface. The Raman spectroscopy confirms that the Mg2+ ions were in situ doped on the surface of TiO2 nanoparticles. The photocatalytic efficiency of the synthesized Mg-TiO2-P25 nanoparticles was investigated by performing photocatalytic degradation of persistent Congo red dye under visible light irradiation. It has been found that the Mg-TiO2-P25 nanoparticles possess better catalytic activity than pure TiO2-P25 and modified 1102 nanoparticles.
ISSN:1010-6030
1873-2666