Synthesis and Photocatalytic Activity of TiO2-coupled SnO2 Nanoparticles Prepared by Sol–Gel Technique

Hussein, Fadhela M; Al-Haidarie, Yousif Kadhim; Alani, Ramzie Rasheed; AL-MOKARAM, ALI

doi:10.21608/ejchem.2022.68381.3503

Synthesis and Photocatalytic Activity of TiO2-coupled SnO2 Nanoparticles Prepared by Sol–Gel Technique

Document Type : Original Article

Authors

¹ Department of Chemistry, College of Science, Mustansiriyah University, 10052- Baghdad, Iraq.

² Al-Turath University College , Baghdad , Iraq

³ Alnukhba University College

⁴ Department of Chemistry, College of Science, Mustansiriyah University. Baghdad- Iraq

10.21608/ejchem.2022.68381.3503

Abstract

Sol–gel technique was applied to synthesis TiO2 with SnO2 nanoparticles in relatively acidic media. X-ray diffraction measurements showed that TiO2/SnO2 nanoparticles were polycrystalline at the anatase phase. TiO2/SnO2 nanoparticles were examined using atomic force microscopy, scanning electron microscopy and Fourier transform infrared analysis. The band gap for the TiO2/ SnO2 nanoparticle estimated from UV–vis spectroscopy was 3.69 eV and also varied in order to investigate the effects of these parameter such as nanoparticle loading, pH, initial p-NT concentration , and temperature, on the reaction kinetics. The TiO2-coupled SnO2 nanoparticles in general showed higher photocatalytic activities than the pure ones.Kinetic studies that the reaction is pseudo first order, and the rate of reaction decreased with increasing p-Nitrotoluene initial concentration, and the used different light source showed the visible light was most Efficiency.

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