Photocatalytic and Magnetic Properties of TiO2 Micro- and Nano- Powders decorated by Magnetic Cocatalysts
Received: 29 July 2023 | Revised: 18 August 2023 | Accepted: 19 August 2023 | Online: 13 October 2023
Corresponding author: Tatiana Gegechkori
Abstract
In this paper, photocatalytic TiO2 micro- and nano-powders coated by Ni and Co nanoclusters were prepared by the original electroless deposition method. The magnetic properties of Ni and Co nanoclusters decorating TiO2 grains were studied by the magnetometry measurements of the temperature dependence of magnetization. Their optical spectroscopy measurements showed a significant increase in light absorption by Ni and Co coated TiO2 nanopowders. The photocatalytic properties of the obtained magnetic nanopowders were studied with Electron Paramagnetic Resonance spectroscopy as well.
Keywords:
titanium dioxide, photocatalysis, magnetic clusters, magnetometry, optical spectrometryDownloads
References
M. Audin and M. Kaneko, Photocatalysis. Tokyo, Japan: Springer, 2002.
S. Peiris, H. B. de Silva, K. N. Ranasinghe, S. V. Bandara, and I. R. Perera, "Recent development and future prospects of TiO2 photocatalysis," Journal of the Chinese Chemical Society, vol. 68, no. 5, pp. 738–769, 2021.
R. M. Navarro, F. del Valle, J. A. Villoria de la Mano, M. C. Álvarez-Galván, and J. L. G. Fierro, "Photocatalytic Water Splitting Under Visible Light: Concept and Catalysts Development," in Advances in Chemical Engineering, vol. 36, H. I. de Lasa and B. Serrano Rosales, Eds. Academic Press, 2009, pp. 111–143.
L. Lin, T. Hisatomi, S. Chen, T. Takata, and K. Domen, "Visible-Light-Driven Photocatalytic Water Splitting: Recent Progress and Challenges," Trends in Chemistry, vol. 2, no. 9, pp. 813–824, Sep. 2020.
H. A. Maddah, "Numerical analysis for the oxidation of phenol with TiO2 in wastewater photocatalytic reactors," Engineering, Technology & Applied Science Research, vol. 8, no. 5, pp. 3463-3469, Oct. 2018.
M. Mahshidnia and A. Jafarian, "Forecasting wastewater treatment results with an ANFIS intelligent system", Engineering, Technology & Applied Science Research, vol. 6, no. 5, pp. 1175-1181, Oct. 2016.
M. Nadareishvili, G. Mamniashvili, D. Jishiashvili, G. Abramishvili, C. Ramana, and J. Ramsden, "Investigation of the visible light sensitive ZnO photocatalytic thin films," Engineering, Technology & Applied Science Research, vol. 10, no. 2, pp. 5524-5527, Apr. 2020.
D. Japaridze et al., "Magnetic Properties and Photocatalytic Activity of the TiO2 Micropowders and Nanopowders Coated by Ni Nanoclusters," Journal of Superconductivity and Novel Magnetism, vol. 32, no. 10, pp. 3211–3216, Oct. 2019.
M. Nadareishvili et al., "Decoration of photocatalytic TiO2 particles by cobalt clusters," Nanotechnology Perceptions, vol. 16, no. 3, pp. 336–347, Nov. 2020.
T. Gavasheli, G. Mamniashvili, M. Nadareishvili, and T. Zedginidze, "Electroless Technology for Production of Cobalt Magnetic and Photocatalytic Nanopowders and Nanowires," TechConnect Briefs, vol. 2019, pp. 42–45, Jun. 2019.
Q. Zhang, M. Xu, B. You, Q. Zhang, H. Yuan, and K.Ostrikov, "Oxygen Vacancy-Mediated ZnO Nanoparticle Photocatalyst for Degradation of Methylene Blue," Applied Sciences, vol. 8, no. 3, Mar. 2018, Art. no. 353..
T. N. Khoperia, T. Zedginidze, K. Kvavadze, and M. Nadareishvili, "Development of competitive nanotechnologies for solution of challenges in photocatalysis, electronics and composites fabrication," ECS Meeting Abstracts, no. 2, 2007, Art. no. 107.
T. N. Khoperia, T. I. Zedginidze, and T. Gegechkori, "Magnetic and Catalytic Properties of Electroless Nickel, Ni-P and Ni-P-Re Thin Films," ECS Transactions, vol. 25, no. 24, Feb. 2010, Art. no. 97.
T. Khoperia, G. Mamniashvili, M. Nadareishvili, and T. Zedginidze, "Competitive Nanotechnology for Deposition of Films and Fabrication of Powder-Like Particles," ECS Transactions, vol. 35, no. 10, Oct. 2011, Art. no. 17.
G. I. Mamniashvili et al., "Magnetometry and Hyperthermia Study of Magnetic Fluid Preparation UNIMAG," World Journal of Condensed Matter Physics, vol. 4, no. 1, pp. 6–12, Feb. 2014.
G. C. Papaefthymiou, "Nanoparticle magnetism," Nano Today, vol. 4, no. 5, pp. 438–447, Oct. 2009.
M. Nadareishvili, T. Zedginidze, and E. Chikvaidze, "On the Possibility of Improving the Efficiency of Oxide Photocatalysts," in IV International scientific and practical conference "Scientific progress: innovations, achievements and prospects, Munich, Germany, 2023, pp. 138–141.
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Copyright (c) 2023 Tatiana Gegechkori, Grigor Mamniashvili, Tornike Gagnidze, Malkhaz Nadareishvili, Tinatin Zedginidze
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