Proceedings of International Conference on Applied Innovation in IT  ·  2026/03/31  ·  Vol. 14  ·  Issue 1  ·  pp. 391–396
Enhanced Photocatalytic and Self-Cleaning Performance of Anatase Titanium dioxide Nanoparticles Synthesized via a Modified Sol-Gel Method
Hadeel Salih Mahdi and Mawlood Maajal Ali
Titanium dioxide nanoparticles (TiO2NPs) had been synthesized using a modified sol-gel technique as well as characterized through UV-Visible spectroscopy, scanning electron microscopy (SEM), X-ray diffraction (XRD) and Fourier transform infrared (FTIR) Spectroscopy, with a band gap of 3.12eV and a pure anatase phase. TiO2NPs had a significant UV absorption as well as an average particle size of approximately 80nm. The objective of this research was to investigate the photocatalytic activity and superhydrophilic behavior of anatase TiO2NPs. According to first-order kinetics, photocatalytic performance has been assessed by evaluating the degradation of organic contaminants under UV irradiation, which resulted in up to 88% removal in 60 minutes. Furthermore, the water contact angle dropped from 70° to less than 5°, demonstrating the TiO₂NPs' strong UV-induced superhydrophilicity and demonstrating their capacity for self-cleaning. These TiO₂NPs appear to be promising options for environmental applications, such as wastewater treatment and self-cleaning coatings in solar panels and building facades, due to their high photocatalytic efficiency as well as superhydrophilic behavior.
Titanium Dioxide Nanoparticles Sol–Gel Synthesis Photocatalysis Self-Cleaning.
References
  1. A. Fujishima and K. Honda, “Electrochemical photolysis of water at a semiconductor electrode,” Nature, vol. 238, no. 5358, pp. 37–38, 1972.
  2. Z. U. Zango et al., “A state-of-the-art review on green synthesis and modifications of ZnO nanoparticles for organic pollutants decomposition and CO₂ conversion,” J. Hazard. Mater. Adv., vol. 17, 2025.
  3. M. Pelaez et al., “A review on the visible light active titanium dioxide photocatalysts for environmental applications,” Appl. Catal. B: Environ., vol. 125, pp. 331–349, 2012.
  4. J. Schneider, M. Matsuoka, M. Takeuchi, J. Zhang, Y. Horiuchi, M. Anpo, and D. W. Bahnemann, “Understanding TiO₂ photocatalysis: mechanisms and materials,” Chem. Rev., vol. 114, no. 19, pp. 9919–9986, 2014.
  5. S. A. Khan et al., “Nutrient strengthening and lead alleviation in Brassica Napus L. by foliar ZnO and TiO₂-NPs modulating antioxidant system, improving photosynthetic efficiency and reducing lead uptake,” Sci. Rep., vol. 14, 2024.
  6. B. Ohtani, “Photocatalysis A to Z—What we know and what we do not know in a scientific sense,” J. Photochem. Photobiol. C, vol. 11, pp. 157–178, 2010.
  7. U. Diebold, “The surface science of titanium dioxide,” Surf. Sci. Rep., vol. 48, no. 5–8, pp. 53–229, 2003.
  8. M. R. Hoffmann, S. T. Martin, W. Choi, and D. W. Bahnemann, “Environmental applications of semiconductor photocatalysis,” Chem. Rev., vol. 95, pp. 69–96, 1995.
  9. M. El Mchaouri, S. Mallah, D. Abouhajjoub, W. Boumya, R. Elmoubarki, A. Essadki, N. Barka, and A. Elhalil, “Engineering TiO₂ photocatalysts for enhanced visible-light activity in wastewater treatment applications,” Tetrahedron Green Chem., vol. 6, 2025.
  10. S. Banerjee, S. C. Pillai, P. Falaras, K. E. O’Shea, J. A. Byrne, and D. D. Dionysiou, “New insights into the mechanism of visible light photocatalysis,” J. Phys. Chem. Lett., vol. 5, no. 15, pp. 2543–2554, 2014.
  11. V. Deimante et al., “Synergistic generation of reactive oxygen species by visible light activated TiO₂ and S. Enterica interaction,” Environ. Clim. Technol., vol. 25, 2021.
  12. A. Fujishima, X. Zhang, and D. A. Tryk, “TiO₂ photocatalysis and related surface phenomena,” Surf. Sci. Rep., vol. 63, no. 12, pp. 515–582, 2008.
  13. R. Wang, N. Sakai, A. Fujishima, T. Watanabe, and K. Hashimoto, “Studies of surface wettability conversion on TiO₂ single-crystal surfaces,” J. Phys. Chem. B, vol. 103, pp. 2188–2194, 1999.
  14. S. Mortuza, M. A. Islam, L. Nahrin, and F. Ahmed, “Synthesis and characterization of polystyrene–Zn–TiO₂ nanocomposites based superhydrophobic self-cleaning coating,” Results Mater., vol. 26, 2025.
  15. X. Chen and S. S. Mao, “Titanium dioxide nanomaterials: synthesis, properties, modifications, and applications,” Chem. Rev., vol. 107, no. 7, pp. 2891–2959, 2007.
  16. S. M. Gupta and M. Tripathi, “A review of TiO₂ nanoparticles,” Chin. Sci. Bull., vol. 56, pp. 1639–1657, 2011.
  17. J. Yu, X. Zhao, and Q. Zhao, “Effect of surface structure on photocatalytic activity of TiO₂ thin films prepared by sol–gel method,” Thin Solid Films, vol. 379, pp. 7–14, 2000.
  18. A. D. Paola et al., “A survey of photocatalytic materials for environmental remediation,” J. Hazard. Mater., vol. 211, pp. 3–29, 2012.
  19. R. Kamble et al., “Visible light-driven high photocatalytic activity of Cu-doped TiO₂ nanoparticles synthesized by hydrothermal method,” Mater. Sci. Res. India, 2018.
  20. K. Nakata and A. Fujishima, “TiO₂ photocatalysis: design and applications,” J. Photochem. Photobiol. C, vol. 13, pp. 169–189, 2012.
  21. X. Baojuan et al., “TiO₂ thin films prepared via adsorptive self-assembly for self-cleaning applications,” ACS Appl. Mater. Interfaces, vol. 4, no. 2, 2012.
  22. M. M. Ahmad et al., “Investigation of TiO₂ nanoparticles synthesized by sol-gel method for effectual photodegradation, oxidation and reduction reaction,” Crystals, 2021.
  23. H. S. Mahdi, M. M. Ali, and S. Z. Dhabian, “Structural and optical properties of cadmium sulphide nanoparticles synthesized by green method using bay laurel leave extract,” Int. J. Appl. Sci. Technol., 2024.
  24. F. S. Ansari and S. Daneshjou, “Optimizing the green synthesis of antibacterial TiO₂-anatase phase nanoparticles derived from spinach leaf extract,” Sci. Rep., vol. 14, p. 22440, 2024.
  25. A. M. Ismail, A. A. Reffaee, and F. G. El Desouky, “Assembly of functional carboxymethyl cellulose/polyethylene oxide/anatase TiO₂ nanocomposites and tuning the dielectric relaxation, optical, and photoluminescence performances,” J. Semicond., vol. 45, no. 7, p. 072101, 2024.
  26. M. M. Ali et al., “Optimization of sPEEK/S-TiO₂ nanocomposite membranes using response surface methodology for low-temperature fuel cell,” Results Eng., vol. 24, 2024.
  27. S. Li, Y. Zhang, X. Wang, and J. Chen, “Morphology-controlled synthesis of anatase TiO₂ nanoparticles with enhanced photocatalytic activity,” J. Alloys Compd., vol. 892, p. 162083, 2022.
  28. L. He, D. R. T. Zahn, and T. I. Madeira, “Photocatalytic performance of sol-gel prepared TiO₂ thin films annealed at various temperatures,” Materials, vol. 16, p. 5494, 2023.
  29. L. Stefano et al., “Charge carrier processes and optical properties in TiO₂ and TiO₂-based heterojunction photocatalysts: a review,” Materials (Basel), vol. 14, no. 7, p. 1645, 2021.
  30. A. El Mragui, I. Aadnan, O. Zegaoui, and J. C. G. E. da Silva, “Physico-chemical characterization and photocatalytic activity assessment under UV-A and visible-light irradiation of iron-doped TiO₂ nanoparticles,” Arabian J. Chem., vol. 16, no. 12, 2023.
  31. A. L. Linsebigler, G. Lu, and J. T. Yates, “Photocatalysis on TiO₂ surfaces: principles, mechanisms, and selected results,” Chem. Rev., vol. 95, no. 3, pp. 735–758, 1995.
  32. R. Wang et al., “Light-induced amphiphilic surfaces,” Nature, vol. 388, pp. 431–432, 1997.
  33. J. Zhao and X. Yang, “Photocatalytic oxidation for indoor air purification: a literature review,” Build. Environ., vol. 38, no. 5, pp. 645–654, 2003.
  34. T. Zhao, T. Cao, Q. Bao, W. Dong, P. Li, X. Gu, Y. Liang, and J. Zhou, “Significantly enhanced self-cleaning capability in anatase TiO₂ for the bleaching of organic dyes and glazes,” Inorganics, vol. 11, no. 8, p. 341, 2023.

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