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Article

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

1
Department of Physics, College of Science, King Faisal University, P.O. Box 400, Al-Ahsa 31982, Saudi Arabia
2
School of Natural Sciences, National University of Sciences and Technology, Islamabad 44000, Pakistan
3
EXPEC Advanced Research Centre, Saudi Aramco, Dhahran 31311, Saudi Arabia
4
Department of Physics, Faculty of Science, Assiut University, Assiut 71516, Egypt
*
Authors to whom correspondence should be addressed.
Academic Editor: Yongsheng Han
Crystals 2021, 11(12), 1456; https://doi.org/10.3390/cryst11121456
Received: 7 November 2021 / Revised: 19 November 2021 / Accepted: 24 November 2021 / Published: 25 November 2021
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%. View Full-Text
Keywords: benzaldehyde; degradation; metal oxide; methylene blue; nanoparticle; nitrophenol benzaldehyde; degradation; metal oxide; methylene blue; nanoparticle; nitrophenol
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MDPI and ACS Style

Ahmad, M.M.; Mushtaq, S.; Al Qahtani, H.S.; Sedky, A.; Alam, M.W. Investigation of TiO2 Nanoparticles Synthesized by Sol-Gel Method for Effectual Photodegradation, Oxidation and Reduction Reaction. Crystals 2021, 11, 1456. https://doi.org/10.3390/cryst11121456

AMA Style

Ahmad MM, Mushtaq S, Al Qahtani HS, Sedky A, Alam MW. Investigation of TiO2 Nanoparticles Synthesized by Sol-Gel Method for Effectual Photodegradation, Oxidation and Reduction Reaction. Crystals. 2021; 11(12):1456. https://doi.org/10.3390/cryst11121456

Chicago/Turabian Style

Ahmad, Mohamad M., Shehla Mushtaq, Hassan S. Al Qahtani, A. Sedky, and Mir W. Alam 2021. "Investigation of TiO2 Nanoparticles Synthesized by Sol-Gel Method for Effectual Photodegradation, Oxidation and Reduction Reaction" Crystals 11, no. 12: 1456. https://doi.org/10.3390/cryst11121456

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