Indian Journal of Pure and Applied Physics

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Structural, Optical and Photocatalytic Properties of SrTiO3 Perovskite obtained by Solvothermal Method


Affiliations
1 Department of Physics, Thiruvalluvar University, Serkkadu, Vellore, Tamil Nadu 632 115, India
2 Department of Physics, Sri Akilandeswari Women’s College, Wandiwash, Tamil Nadu 604 408, India
3 Department of chemistry, Sun Arts and Science College, Tiruvannamalai, Tamil Nadu 606 755, India
4 Department of Physics, M.V. Muthiah Government Arts College for Women, Dindigul, Tamil Nadu 624 001, India

The Solvothermal method was employed to produce bare TiO2 nanoparticles and 5wt% SrTiO3. The resultant samples were investigated using various instruments including X-ray diffraction (XRD), UV- Visible spectroscopy (UV), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), and high-resolution transmission electron microscopy (HRTEM). The growth and crystallization of SrTiO3 were analyzed using XRD. The SEM investigation revealed the spherical shape and aggregation of the nanoparticles, and the sample optical bandgap energy was found to be 3.2 eV. The maximal photodegradation efficiency of Congo red dye was achieved by the action of the valence band holes.

Keywords

Strontium titanate; Solvothermal; Structural; Morphology and photocatalytic activity
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  • Structural, Optical and Photocatalytic Properties of SrTiO3 Perovskite obtained by Solvothermal Method

Abstract Views: 13  | 

Authors

M Anbuvannan
Department of Physics, Thiruvalluvar University, Serkkadu, Vellore, Tamil Nadu 632 115, India
V Maria Vinosel
Department of Physics, Sri Akilandeswari Women’s College, Wandiwash, Tamil Nadu 604 408, India
P Dhatshanamurthi
Department of chemistry, Sun Arts and Science College, Tiruvannamalai, Tamil Nadu 606 755, India
M Ramesh
Department of Physics, M.V. Muthiah Government Arts College for Women, Dindigul, Tamil Nadu 624 001, India
S Uvarajan
Department of Physics, Thiruvalluvar University, Serkkadu, Vellore, Tamil Nadu 632 115, India

Abstract


The Solvothermal method was employed to produce bare TiO2 nanoparticles and 5wt% SrTiO3. The resultant samples were investigated using various instruments including X-ray diffraction (XRD), UV- Visible spectroscopy (UV), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), and high-resolution transmission electron microscopy (HRTEM). The growth and crystallization of SrTiO3 were analyzed using XRD. The SEM investigation revealed the spherical shape and aggregation of the nanoparticles, and the sample optical bandgap energy was found to be 3.2 eV. The maximal photodegradation efficiency of Congo red dye was achieved by the action of the valence band holes.

Keywords


Strontium titanate; Solvothermal; Structural; Morphology and photocatalytic activity