From Laboratory Promise to Real-World Performance: Assessing The Deployability of Nano-Tio2 in Self-Cleaning and Air-Purifying Building Material

References

[1] Opeoluwa Oluwanifemi Akomolafe, Tolulope Olorunsogo, Evangel Chinyere Anyanwu, Femi Osasona, Jane Osareme Ogugua, Onyeka Henry Daraojimba. AIR QUALITY AND PUBLIC HEALTH: A REVIEW OF URBAN POLLUTION SOURCES AND MITIGATION MEASURES. Engineering Science & Technology Journal 2024;5:259–71. https://doi.org/10.51594/estj.v5i2.751.

[2] Mandi UA, Meda US, Vora K, Athreya YN. Pollution Control Applications of Nano Titanium Dioxide in the Construction Industry. ECS Trans 2022;107:3281–93. https://doi.org/10.1149/10701.3281ecst.

[3] Bandi G. Photocatalytic Component Used In Concrete For Environmental Friendly Approach. Journal of Scientific Research and Technology 2025;VOLUME:52–9.

[4] Artale A, Fregni A, Franzoni E. About the self-cleaning potential of TiO2-TEOS treatments for heritage cementitious materials. Constr Build Mater 2025;496:143735. https://doi.org/10.1016/j.conbuildmat.2025.143735.

[5] Fregni A, Venturi L, Franzoni E. Evaluation of the Performance and Durability of Self-Cleaning Treatments Based on TiO2 Nanoparticles Applied to Cement-Based Renders and Boards. Coatings 2023;13:990. https://doi.org/10.3390/coatings13060990.

[6] Xu P, Yan X, Ge J, Cai J, Qian G, Yu H, et al. Research on the preparation of composite BOCN-TiO2 photocatalytic materials and their exhaust gas degradation in road domains. Constr Build Mater 2025;494:143584. https://doi.org/10.1016/j.conbuildmat.2025.143584.

[7] Arif M, Hannan Zahid A, Saghir S, Mahsud A. From sunlight to sustainability: The properties, evolution, and prospects of photocatalytic building materials. Catalysis Reviews 2025:1–72. https://doi.org/10.1080/01614940.2024.2445044.

[8] Messaoud M, Trabelsi F, Kumari P, Merenda A, Dumée LF. Recrystallization and coalescence kinetics of TiO2 and ZnO nano-catalysts towards enhanced photocatalytic activity and colloidal stability within slurry reactors. Mater Chem Phys 2020;252:123235. https://doi.org/10.1016/j.matchemphys.2020.123235.

[9] Li Y, Zhou X, Hu X, Zhao X, Fang P. Formation of Surface Complex Leading to Efficient Visible Photocatalytic Activity and Improvement of Photostabilty of ZnO. The Journal of Physical Chemistry C 2009;113:16188–92. https://doi.org/10.1021/jp9056863.

[10] Mohagheghian A, Ayagh K, Godini K, Shirzad-Siboni M. Enhanced photocatalytic activity of Fe 3 O 4 -WO 3 -APTES for azo dye removal from aqueous solutions in the presence of visible irradiation. Particulate Science and Technology 2019;37:358–70. https://doi.org/10.1080/02726351.2017.1376363.

[11] Majdoub M, Anfar Z, Amedlous A. Emerging Chemical Functionalization of g-C 3 N 4 : Covalent/Noncovalent Modifications and Applications. ACS Nano 2020;14:12390–469. https://doi.org/10.1021/acsnano.0c06116.

[12] Guerrini GL. Photocatalytic performances in a city tunnel in Rome: NOx monitoring results. Constr Build Mater 2012;27:165–75. https://doi.org/10.1016/j.conbuildmat.2011.07.065.

[13] Wei Y, Meng H, Wu Q, Bai X, Zhang Y. TiO2-Based Photocatalytic Building Material for Air Purification in Sustainable and Low-Carbon Cities: A Review. Catalysts 2023;13:1466. https://doi.org/10.3390/catal13121466.

[14] Russell HS, Frederickson LB, Hertel O, Ellermann T, Jensen SS. A Review of Photocatalytic Materials for Urban NOx Remediation. Catalysts 2021;11:675. https://doi.org/10.3390/catal11060675.

[15] Jenima J, Priya Dharshini M, Ajin ML, Jebeen Moses J, Retnam KP, Arunachalam KP, et al. A comprehensive review of titanium dioxide nanoparticles in cementitious composites. Heliyon 2024;10:e39238. https://doi.org/10.1016/j.heliyon.2024.e39238.

[16] Bautista-Gutierrez KP, Herrera-May AL, Santamaría-López JM, Honorato-Moreno A, Zamora-Castro SA. Recent Progress in Nanomaterials for Modern Concrete Infrastructure: Advantages and Challenges. Materials 2019;12:3548. https://doi.org/10.3390/ma12213548.

[17] Sameut Bouhaik I, Leroy P, Ollivier P, Azaroual M, Mercury L. Influence of surface conductivity on the apparent zeta potential of TiO2 nanoparticles: Application to the modeling of their aggregation kinetics. J Colloid Interface Sci 2013;406:75–85. https://doi.org/10.1016/j.jcis.2013.05.034.

[18] Hischier R. Life cycle assessment of engineered nanomaterials. Health and Environmental Safety of Nanomaterials, Elsevier; 2021, p. 443–58. https://doi.org/10.1016/B978-0-12-820505-1.00001-8.

[19] Chen J, Poon C. Photocatalytic construction and building materials: From fundamentals to applications. Build Environ 2009;44:1899–906. https://doi.org/10.1016/j.buildenv.2009.01.002.

[20] Wu XP. A Review - The Properties and Applications of Nano-Structured Titanium Oxide Materials. Key Eng Mater 2017;727:314–21. https://doi.org/10.4028/www.scientific.net/KEM.727.314.

[21] Wu X. Applications of Titanium Dioxide Materials. Titanium Dioxide - Advances and Applications, IntechOpen; 2022. https://doi.org/10.5772/intechopen.99255.

[22] Cardellicchio L. On conservation issues of contemporary architecture: The technical design development and the ageing process of the Jubilee Church in Rome by Richard Meier. Frontiers of Architectural Research 2018;7:107–21. https://doi.org/10.1016/j.foar.2018.03.005.

[23] Li Y, Xing X, Pei J, Li R, Wen Y, Cui S, et al. Automobile exhaust gas purification material based on physical adsorption of tourmaline powder and visible light catalytic decomposition of g-C3N4/BiVO4. Ceram Int 2020;46:12637–47. https://doi.org/10.1016/j.ceramint.2020.02.029.

[24] Mathis JE, Bi Z, Bridges CA, Kidder MK, Paranthaman MP. Enhanced visible-light absorption of mesoporous TiO 2 by co-doping with transition-metal/nitrogen ions. MRS Proceedings 2013;1547:115–9. https://doi.org/10.1557/opl.2013.666.

[25] Li F, Kong W, Zhao X, Pan Y. Multifunctional TiO 2 -Based Superoleophobic/Superhydrophilic Coating for Oil–Water Separation and Oil Purification. ACS Appl Mater Interfaces 2020;12:18074–83. https://doi.org/10.1021/acsami.9b22625.

[26] Papadaki D, Kiriakidis G, Tsoutsos T. Applications of nanotechnology in construction industry. Fundamentals of Nanoparticles, Elsevier; 2018, p. 343–70. https://doi.org/10.1016/B978-0-323-51255-8.00011-2.

[27] Palaniappan K. Sources Release of Nanoparticles During Construction Activities that could Potentially Pollute the Surrounding Air, 2020. https://doi.org/10.11159/icesa20.03.

[28] Saleem H, Zaidi SJ, Alnuaimi NA. Recent Advancements in the Nanomaterial Application in Concrete and Its Ecological Impact. Materials 2021;14:6387. https://doi.org/10.3390/ma14216387.

[29] Zhang C, Zhang X, Shen H, Shuai D, Xiong X, Wang Y, et al. Superior self-cleaning surfaces via the synergy of superhydrophobicity and photocatalytic activity: Principles, synthesis, properties, and applications. J Clean Prod 2023;428:139430. https://doi.org/10.1016/j.jclepro.2023.139430.

[30] Naef NU, Seeger S. Superhydrophobic Self‐Cleaning Membranes Made by Electrospinning. Macromol Mater Eng 2023;308. https://doi.org/10.1002/mame.202200613.

@article{1712476,
      author = {Oloruntimileyin T. Akintade, John A. Adeyemi, Shade O. Ademokoya, Maseala C. Sekete, Timothy A. Adeyi; Olakunle I. Oresegun},
      title = {From Laboratory Promise to Real-World Performance: Assessing The Deployability of Nano-Tio2 in Self-Cleaning and Air-Purifying Building Material},
      journal = {Iconic Research And Engineering Journals},
      year = {2025},
      volume = {9},
      number = {6},
      pages = {89-99},
      issn = {2456-8880},
      url = {https://www.irejournals.com/formatedpaper/1712476.pdf},
      abstract = {Nano-titanium dioxide (TiO?) is currently being strongly sold as a miracle product in the manufacture of air cleaning, cleaning air in buildings in cities. However, there is a huge disparity between perceived and actual performance of a field-level, critical analysis. Although nano-TiO2 remains the only unquestioned standard photocatalyst due to its unique alkaline stability and bimodal photocatalytic-superhydrophobic activity, its practical operational performance is grossly impaired by three inherent constraints an ultra-environmental response to UV light and soiling akin to all known photocatalysts, extensive scalability demands during manufacturing and cost, and lifecycle immaturity regarding its overall net environmental benefit. This review shows that nowadays the main challenge is not the issue of materials science; it is the issue of practical deployability. The paradigm is thus encouraged to be redefined to revolve around maximizing optimum lab performance to the continuation of its operation in the complex urban settings. Finally, a proper roadmap should be adopted with proper testing plans and industrial standardization and outcome-based policymaking to realize the persuasive vision of nano-TiO2 into an operable tool to improve environmental health in cities.},
      keywords = {Deployability Assessment, Nano-Titanium Dioxide (TiO?), Photocatalytic Concrete, Real-World Performance Gap, Sustainable Infrastructure},
      month = {December},
      doi = {https://doi.org/10.64388/IREV9I6-1712476}
  }