Optimizing nano-TiO2 and ZnO integration in silica-based high-performance concrete: Mechanical, durability, and photocatalysis insights for sustainable self-cleaning systems

Adebanjo, Abiola Usman; Abbas, Yassir M.; Shafiq, Nasir; Khan, M. Iqbal; Farhan, Syed Ahmad; Masmoudi, Radhouane

doi:10.1016/j.conbuildmat.2024.138038

Construction and Building Materials

2024

DOI: 10.1016/j.conbuildmat.2024.138038

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Optimizing nano-TiO2 and ZnO integration in silica-based high-performance concrete: Mechanical, durability, and photocatalysis insights for sustainable self-cleaning systems

Abiola Usman Adebanjo,

Yassir M. Abbas,

Nasir Shafiq

et al.

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Cited by 3 publications

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From surface to structure: The role of preparation techniques in shaping titanium dioxide nanotubes via anodization

Afshoon,

Asadi,

Lashgari

et al. 2024

Ceramics International

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From surface to structure: The role of preparation techniques in shaping titanium dioxide nanotubes via anodization

Afshoon,

Asadi,

Lashgari

et al. 2024

Ceramics International

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Influence of Nanoparticles on the Mechanical and Durability Properties of Concrete: A Microstructural Analysis

Trebukhin,

Bindu,

Bindu

et al. 2024

E3S Web Conf.

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This study investigates the effects on mechanical and durability properties of concrete by including nano-silica, nano- titanium dioxide, and nano-alumina. The concrete mixes included nanoparticles in a range of quantities, from 0.5% to 4% by cement weight. Several experimental tests were performed, including those for chloride permeability, workability, compressive strength, and flexural strength. Compressive strength increased to 40.5 MPa and chloride permeability decreased to 1000 Coulombs, indicating an improvement in durability, when the nano-silica content was found to be 3%. Nano-titanium dioxide and nano-alumina also shown a minor but noticeable improvement. A detailed SEM microstructural analysis demonstrates the formation of a dense and refined microstructure, lending credence to the claims of improved mechanical properties. Results show that adding nanoparticles to concrete, particularly nano-silica, increases its performance without reducing its strength or durability.

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Effect of Cement Substitution with Mineral Fillers on NOx Air-Purification Efficiency and Photocatalytic Reaction Selectivity of Nano-TiO2-Modified Cementitious Composites

Chilmon,

Kalinowski,

Jackiewicz-Rek

2024

Materials

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This research investigated the properties of photocatalytic cementitious composites, including their air-purification efficiency. A method of characterizing the removal of airborne pollutants (nitrogen oxides), simulating the actual NOx concentration and irradiation conditions in Warsaw, Poland, in the autumn/winter season was established. The study analyzed the impact of changes in the composition of cement mortars—partial substitution of the binder with mineral fillers—on the properties of the external photoactive surface of the composite. The designed experimental plan included both quantitative and qualitative variables (type and amount of fillers used). It was found that the photocatalytic performance of the composite was correlated with its pore total content and pore size distribution—the higher the content of mineral fillers, the lower the porosity and the less effective its photocatalytic properties. The selectivity of the photocatalytic NOx reactions also deteriorated as the content of the mineral fillers increased. The study confirmed the validity of increasing the binder content in cementitious composites to enhance their photocatalytic performance.

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Optimizing nano-TiO2 and ZnO integration in silica-based high-performance concrete: Mechanical, durability, and photocatalysis insights for sustainable self-cleaning systems

Cited by 3 publications

References 50 publications

From surface to structure: The role of preparation techniques in shaping titanium dioxide nanotubes via anodization

From surface to structure: The role of preparation techniques in shaping titanium dioxide nanotubes via anodization

Influence of Nanoparticles on the Mechanical and Durability Properties of Concrete: A Microstructural Analysis

Effect of Cement Substitution with Mineral Fillers on NOx Air-Purification Efficiency and Photocatalytic Reaction Selectivity of Nano-TiO2-Modified Cementitious Composites

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