NDLI: Optical and structural properties of TiO$_{2}$ nanopowders with Ce/Sn doping at various calcination temperature and time

Content Provider	Springer Nature Link
Author	Alijani, Mahnaz Kaleji, Behzad Koozegar
Copyright Year	2017
Abstract	In this paper, the influence of calcination temperature and time has been investigated on the structural, morphological, optical, and photo-catalytic properties of Sn/Ce co-doped TiO$_{2}$ nano-powders prepared via sol–gel process. They were calcined at the temperatures in the range of 475–975 °C for 1 and 2 h. The photocatalytic ability of TiO$_{2}$ powders was evaluated by means of methylene blue degradation experiments conducted under the irradiation of simulated solar light. The X-ray diffraction results showed that the tensile strain in the host lattice was present. The comparison with undoped and Sn or Ce-doped TiO$_{2}$, co-doped TiO$_{2}$ shows an obviously higher catalytic activity under visible light irradiation. The absorbance spectrum of Ce and Sn co-doped TiO$_{2}$ exhibited significant red-shift to visible region. The red-shift is caused by the appearance of a new electronic state in the middle of the TiO$_{2}$ band-gap. FESEM images show the formation of doped TiO$_{2}$ nanoparticles with small size in structure and spherical in shape. The FTIR spectra exhibited peaks corresponding to the anatase and rutile structure phases of TiO$_{2}$.
Starting Page	1
Ending Page	16
Page Count	16
File Format	PDF
ISSN	03068919
Journal	Optical and Quantum Electronics
Volume Number	49
Issue Number	1
e-ISSN	1572817X
Language	English
Publisher	Springer US
Publisher Date	2017-01-03
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Doping TiO$_{2}$ nanoparticles Sol–gel Optical properties Structural properties Photo-catalytic activity Optics, Lasers, Photonics, Optical Devices Electrical Engineering Characterization and Evaluation of Materials Computer Communication Networks
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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