Skip to main content
Log in

Preparation and Photocatalytic Performance of Nano-TiO2 Composite Decorative Panels Using the Multilayer Method

  • Research Paper
  • Published:
Iranian Journal of Science and Technology, Transactions of Civil Engineering Aims and scope Submit manuscript

Abstract

Self-cleaning decorative panels rely on the presence of photocatalytic nano-TiO2 (NT) to effectively degrade pollutants and achieve a stable decoration effect. However, the method of directly mixing NT with raw materials is limited by its high NT dosage and poor utilization. This study proposes a novel NT composite decorative panel prepared by the multilayer method, which is suitable for architectural decoration and reduces the NT content to achieve stable self-cleaning performance. The study investigates the effects of the NT content, NT particle size, and thickness of the NT-surface layer on the mechanical properties and photocatalytic performance of the panels. The results reveal that an appropriate amount of NT can fill the pores in the cement stone, improve the microstructure of the hydration system, and enhance the compressive strength of the specimens. The compressive strength of the decorative panels that are produced using the multilayer method decreases when the NT-surface layer thickens. The optimal thickness of the NT-surface layer is determined to be 1/7 of the thickness of the panels. Additionally, the optimal NT particle size and NT content in the NT-surface layer are 25 nm and 5%, respectively. Upon exposure to UV lamp irradiation, the decorative panels exhibit a degradation rate of 94% for nitric oxide (NO) and 88% for rhodamine B (RhB). The NO degradation rate of the decorative panels initially increases and subsequently decreases with the increase in moisture content, and the optimal moisture content is approximately 1.2%. Insufficient or excessive water can reduce the photocatalytic efficiency of the decorative panels. When the NO concentration increases, the degradation rate of the decorative panels decreases, but the total amount of NO degradation increases. After 6 months of exposure to outdoor conditions, the NO degradation rate of the decorative panels decreased by 15% but remained high at 80%.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Fig. 11
Fig. 12
Fig. 13
Fig. 14
Fig. 15
Fig. 16
Fig. 17

Similar content being viewed by others

References

Download references

Acknowledgements

This work was supported by Hunan Provincial Natural Science Foundation of China (2024JJ5159, 2024JJ6217), Hunan Provincial Science and Technology Plan Project (2023SK2014), Scientific Research Found of Hunan Provincial Education Department of China (22B0473), and the Postgraduate Scientific Research Innovation Project of Hunan Province (QL20220223, QL20230245). We also thank LetPub (www.letpub.com) for its linguistic assistance during the preparation of this manuscript.

Author information

Authors and Affiliations

Authors

Contributions

Q.T. (First Author): Methodology, Software, Writing - Original Draft, Investigation; G.W. (Corresponding Author): Conceptualization, Software, Writing - Review & Editing, Formal analysis; B.H.: Supervision, Project administration; F.L.: Resources; M.X.: Validation; M.Z.: Validation;

Corresponding author

Correspondence to Gongxun Wang.

Ethics declarations

Conflict of interest

The authors declare that they have no conflict of interest.

Competing Interests

The authors declare no competing interests.

Additional information

Publisher’s Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Tang, Q., Wang, G., Huang, B. et al. Preparation and Photocatalytic Performance of Nano-TiO2 Composite Decorative Panels Using the Multilayer Method. Iran J Sci Technol Trans Civ Eng (2024). https://doi.org/10.1007/s40996-024-01459-w

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1007/s40996-024-01459-w

Keywords

Navigation