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Contribution of TiO2 and ZnO nanoparticles to the hydration of Portland cement and photocatalytic properties of High Performance Concrete

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Amor, F., Baudys, M., Racova, Z., Scheinherrová, L., Ingrisova, L., Hajek, P.·2022·Case Studies in Construction Materials
DOI 10.1016/j.cscm.2022.e00965
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Abstract

This paper aims to study the hydraulic and photocatalytic behavior of mixtures based on TiO2 and ZnO nanoparticles in cement pastes and High Performance Concretes (HPCs) for the self-cleaning application of building materials. The two nanoparticles were used to partially replace the cement of varying values from 0% to 3% by weight. Cement pastes were characterized by X-ray diffraction, X-Ray Fluorescence, Differential Scanning Calorimetry and Thermogravimetric analyzes to study their compatibility in the cement matrix. The addition of TiO2 in Portland cement resulted in better reactivity by the large presence of hydration products and the appearance of unreacted anatase titanium oxide which is responsible for the photocatalysis process. The cement pastes containing ZnO had clearly indicated the retarding effect of zinc in the hydration of Portland cement. The photocatalytic properties are determined by studying the efficiency of the degradation of nitrogen oxides (NOx) and by monitoring the discoloration of Rhodamine B under UV irradiation of HPC samples. The results showed that the introduction of titanium oxides in the HPCs exhibited a significant degradation efficiency compared to zinc oxide and the samples containing the later underwent greater discoloration of the red color coordinate (Rt).

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Metadata

Authors
Amor, F., Baudys, M., Racova, Z., Scheinherrová, L., Ingrisova, L., & Hajek, P.
Affiliations
  • Czech Technical University in Prague (CZ)
  • University of Chemistry and Technology, Prague (CZ)
Corresponding author
Amor, F.
ORCID
Venue
Case Studies in Construction Materials
Publisher
Elsevier BV
Published
2022-06
Volume
16
Pages
e00965
ISSN
2214-5095 (ISSN-L)
DOI
10.1016/j.cscm.2022.e00965
OpenAlex
W4212960774
Cited by
68
References
3
Citations by year
2026: 3 · 2025: 9 · 2024: 37 · 2023: 13 · 2022: 6
FWCI
2.92
Type
journal article
Language
en
Open access
Licence
Locations
  • Case Studies in Construction Materials (publishedVersion, cc-by-nc-nd)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
Czech Technical University in Prague
Topics
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › TiO2 Photocatalysis and Solar Cells
  • Physical Sciences › Engineering › Civil and Structural Engineering › Concrete and Cement Materials Research
  • Physical Sciences › Earth and Planetary Sciences › Earth-Surface Processes › Building materials and conservation
Keywords
titanium dioxide nanoparticles, zinc oxide nanoparticles, Portland cement hydration, high-performance concrete, photocatalysis, cement paste, cement replacement, anatase, NOx degradation

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