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‎ 20.1001.1.17353351.1403.20.0.1.1

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Investigating the effect of calcination temperature on optical and photocatalytic properties of mesoporous titania nanoparticles
Behzad Koozegar Kaleji * , Mahsa Lalehgani
Malayer University , bkaleji@gmail.com
Abstract:   (232 Views)
Abstract: In this study, pure titania (T) nanoparticles calcined at 400, 450, and 500 °C were synthesized by sol-gel method. The aim of the present study was to investigate the optical and photocatalytic properties of nanoparticles synthesized at different temperatures. In this experiment, titanium butoxide (TBT) was used as the starting material to provide titanium oxide and ethanol was used as the solvent. The synthesized materials were characterized by X-ray diffraction (XRD), spectrophotometric (UV-Vis) analysis, field emission scanning electron microscopy (FE-SEM) analysis, and specific surface area (BET) analysis. The best photocatalytic conditions of the samples were related to the sample calcined at 400 °C with a degradation percentage of 3.56. As the calcination temperature increased from 400°C to 500°C, the band gap energy of the samples decreased from 3.3 eV to 2.88 eV. The field emission scanning electron microscope image of the sample calcined at 400°C showed a particle size of 45-100 nm.
 
Keywords: titanium dioxide, photocatalytic activity, calcination temperature, optical properties
     
Type of Study: Research | Subject: Electrical, Optical and Magnetic Ceramics
Received: 2024/10/14 | Accepted: 2024/12/14
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