Incorporation of Anatase-TiO2 in cement to enhance the self-cleaning and mechanical properties: A systematic study

Khanna, Sakshum; Paneliya, Sagar; Hinshu, Harsh; Singh, Ayush Pratap; Bhatt, Naimish; Barik, Biswajit; Mishra, Rohit; Motiani, Ronak

doi:10.1016/j.matpr.2020.10.625

Cited by 6 publications

(2 citation statements)

References 29 publications

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“…Te evaluation of the self-cleaning efcacy of TiO 2 cement composite was performed through the decolorization assay of rhodamine B, in contrast to unaltered cement specimens. Te fndings of the study suggest that an increase in the quantity of TiO 2 nanoparticles in the modifed cement led to an enhancement in the self-cleaning characteristic of the samples [22]. Table 1 presents a comparison between the present study and previous research.…”

Section: Introductionmentioning

confidence: 57%

Study on the Behavior of Self-Cleaning Impregnated Photocatalyst (Tio2) with Cement Mortar

Palanisamy,

Parvathikumar,

Gnanasekaran

et al. 2023

Advances in Materials Science and Engineering

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Cement-based materials are increasingly and widely employed in infrastructure development; however, they pollute our environment by generating carbon dioxide, which is detrimental to our civilization. In self-cleaning concrete, photocatalysts accelerate the decomposition of organic particles; thus, photocatalytic degradation of gaseous pollutants could reduce pollution. The incorporation of photocatalytic components enhanced the mechanical self-cleaning properties of cement mortar. In this study, 4–6 percent by weight of rutile TiO2 was added to mortar, and the results were compared to those of a control sample. On the proposed mortar cubes, both fresh mortar and hardening mortar experiments were conducted. Because the initial and final setting times of TiO2 differ from those of conventional cement mortar, the surplus TiO2water-cement ratio had to be modified. The adaptability of the sol-gel method enables the use of various process parameters to influence the properties of the produced TiO2 nanoparticles. The compressive strength was calculated for 7, 14, 21, and 28 days, and an ultrasonic velocity test was performed after 28 days. On mortar samples, acid and sulfate attack experiments were performed. The M-3 mortar mixture containing 5% rutile exhibited the highest level of strength compared to the other mixtures. The M-3 exhibits a strength that is 10.96% greater than that of the control mix. The impact of acid and sulfate attack on the strength of mix M-2 is relatively modest in comparison to other mixtures. Using RhB (rhodamine color) discoloration under UV light, such as sunlight, the photocatalytic mortar is concentrated; a typical test for self-cleaning cementitious materials reveals the presence of more photocatalytic material, which yields the best results.

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Section: Introductionmentioning

confidence: 57%

Study on the Behavior of Self-Cleaning Impregnated Photocatalyst (Tio2) with Cement Mortar

Palanisamy,

Parvathikumar,

Gnanasekaran

et al. 2023

Advances in Materials Science and Engineering

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“…By adding 1% doped TiO 2 nanoparticles, observed improving the strength of the compression and flexure by shortening the setting time. Increasing the doping of nano TiO 2 concentration beyond optimum content reduces the compressive and flexural strength of the composite overall (46). La doping with TiO 2 up to 0.5 molecular percentage increases the specific surface area which leads to improvement in the photocatalytic activity, and it effectively expands the photocatalyst's range of light absorption to the visible light bandwidth (17,47).…”

Section: Dopants With Nano-titanium Dioxidementioning

confidence: 99%

Photocatalytic Cementitious Materials to Reduce Air Pollution: Review

Kumar¹,

Meda²,

Sachin³

et al. 2022

ECS Trans.

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Oxides of nitrogen (NOx) are highly reactive and major air pollutants generated from the vehicular emission and burning of fossil fuels in industries. These pollutants will create tropospheric ozone, formation of urban smog and occurrence of acid rain, etc. A potential solution for this would be heterogeneous photocatalysis. Using photocatalysts such as titanium dioxide (TiO2) inorganic and organic matter present in the air, such as NOx and VOCs can be adsorbed and oxidized by the action of ultraviolet (UV) light (sunlight). This technology is promising for cities with highly congested areas having high ground-level pollutant concentrations. Self-cleaning and air-purification coating with a super-hydrophilic photocatalyst (TiO2) coated on buildings can bring down the NOx concentration in the air. In addition, the incorporation of TiO2 in the form of nano-particles into cementitious materials will enhance their mechanical properties. This study evaluates and highlights the applications of nano titanium dioxide and its effects on the fresh and hardened characteristics of the cementitious composites.

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Investigation of Thermophysical Properties of Synthesized N-Hexacosane-Encapsulated Titania Phase Change Material for Enhanced Thermal Storage Application

Khanna

Paneliya

Marathey

et al. 2022

Recent Advances in Mechanical Infrastructure

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Incorporation of Anatase-TiO2 in cement to enhance the self-cleaning and mechanical properties: A systematic study

Cited by 6 publications

References 29 publications

Study on the Behavior of Self-Cleaning Impregnated Photocatalyst (Tio2) with Cement Mortar

Study on the Behavior of Self-Cleaning Impregnated Photocatalyst (Tio2) with Cement Mortar

Photocatalytic Cementitious Materials to Reduce Air Pollution: Review

Investigation of Thermophysical Properties of Synthesized N-Hexacosane-Encapsulated Titania Phase Change Material for Enhanced Thermal Storage Application

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