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Investigation of TiO2 Nanoparticles Synthesized by Sol-Gel Method for Effectual Photodegradation, Oxidation and Reduction Reaction

Mohamad M. AhmadDepartment of Physics, College of Science, King Faisal University, P.O. Box 400, Al-Ahsa 31982, Saudi ArabiaShehla MushtaqSchool of Natural Sciences, National University of Sciences and Technology, Islamabad 44000, PakistanHassan S. Al QahtaniEXPEC Advanced Research Centre, Saudi Aramco, Dhahran 31311, Saudi ArabiaA. SedkyDepartment of Physics, Faculty of Science, Assiut University, Assiut 71516, EgyptMir Waqas AlamDepartment of Physics, College of Science, King Faisal University, P.O. Box 400, Al-Ahsa 31982, Saudi Arabia

2021en

ABI

Annotatsiya

Metal oxide titanium dioxide (TiO2) nanoparticles were synthesized by using a simple and economical sol-gel method. The prepared nanoparticles were used to evaluate methylene blue dye degradation and as catalysts in the oxidation of benzaldehyde. The crystallite size of the titanium dioxide nanoparticle was 18.3 nm, which was confirmed by X-ray diffraction analysis. The spherical morphology was confirmed by scanning electron microscopy (SEM), and the elemental composition of the nanoparticle was found by energy dispersive X-ray (EDAX) analysis. The anatase form of the nanoparticle was confirmed by the bandgap 3.2 eV, which was measured using UV–DRS analysis. The bond between metal and oxygen was confirmed by the peaks at 485 and 606 cm–1 analyzed by Fourier transform infrared analysis (FTIR). The efficiency of the catalyst in dye degradation was 60.08, 68.38, and 80.89% with respect to 50, 75, and 100 mg catalyst weight. The yield % of benzoic acid was 94%, and the reduction efficiency against 4-nitrophenol was 98.44%.

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Identifikatorlar

DOI: 10.3390/cryst11121456

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