The Use of the Photocatalytic Composite Material in the Cement System

Labuzova, M V; Gubareva, Ekaterina; Ogurtsova, Yulia N.; Строкова, В.

doi:10.31659/0585-430x-2019-770-5-16-21

Cited by 3 publications

(2 citation statements)

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“…Известно получение фотокаталитических композиционных материалов путем осаждения частиц TiO2 на инертные носители. В качестве инертных подложек используют диоксид кремния, активированный углерод, морденит, цеолит [11][12][13][14]. За счет увеличения активной поверхности и равномерного распределению TiO2 на поверхности адсорбентов, скорость самоочищения увеличивается.…”

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“…Проблема равномерного распределения возникает из-за высокой удельной поверхности фотокатализатора: от 50 [31] до 300 м 2 /г [11]. Как говорилось выше, решением данной проблемы является нанесение частиц диоксида титана на кремнеземный носитель методом осаждения [12][13][14].…”

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Photocatalytic Active Self-Cleaning Cement-Based Materials. Compositions, Properties, Application

Antonenko

Ogurtsova

Строкова

et al. 2020

Bulletin of Belgorod State Technological University Named After. V. G. Shukhov

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The paper reviews the available technologies for producing photocatalytic active self-cleaning materials based on cement, including concretes and dry building mixtures. Used photocatalytic additives and their influence on the cement system are considered. The applied methods for assessing the photocatalytic activity of self-cleaning cement materials are presented. The compositions of concrete mixtures, their properties, areas and prospects of application are analyzed. The main problems of development, production and application of photocatalytic active self-cleaning materials based on cement are presented. The main directions to increase the self-cleaning ability of photocatalytic active materials based on cement are: optimization of the microstructure of the photocatalyst and the composite with its use in the direction of creating a developed surface of the photocatalyst - hierarchical microstructure; it intensifies the diffusion processes of photocatalytic reaction reagents and increases the contact area photocatalyst with a pollutant; it absorbs and accumulates ultraviolet radiation waves; optimization of the phase composition of titanium dioxide - search for the ratio of the anatase and rutile phases, at which the maximum photocatalytic activity is achieved; choosing of economically feasible method for periodical updating of the surface of concrete products carbonized during operation in order to restore self-cleaning ability.

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Photocatalytic Active Self-Cleaning Cement-Based Materials. Compositions, Properties, Application

Antonenko

Ogurtsova

Строкова

et al. 2020

Bulletin of Belgorod State Technological University Named After. V. G. Shukhov

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TiO2–SiO2 nanocomposites from technological wastes for self-cleaning cement composition

Tyukavkina

Shchelokova

Tsyryatyeva

et al. 2021

Journal of Building Engineering

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Acid-Base Properties of the Surface of Micro-Reinforcing Fibers as a Component of a Photocatalytic Composite Material for Plaster Mixes

Nerovnaya,

Sival'neva,

Strokova

et al. 2023

Bulletin of Belgorod State Technological University Named After. V. G. Shukhov

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The analysis of fibers of various types from the point of view of their use as a component of a photocatalytic composite material (PCM) of the composition "fiber – anatase", intended for use as an additive in the creation of self-cleaning plaster coatings was carried out. The fiber was treated with acids (nitric, acetic, formic) and thermal exposure at 550 °C, which simulates the conditions of sol-gel deposition of TiO2 on the carrier and synthesis of anatase. The criterion for evaluating changes in the properties of the surface of various fibers as a photocatalyst carrier was the nature of the distribution of adsorption sites in the area of Brensted acids. The positive effect on the activity of the fiber surface of the treatment modeling the process of sol-gel synthesis of PCM has been determined. The nature of the change in the total number of adsorption sites depending on the type of treatment and the type of fiber is established.

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The Use of the Photocatalytic Composite Material in the Cement System

Cited by 3 publications

References 0 publications

Photocatalytic Active Self-Cleaning Cement-Based Materials. Compositions, Properties, Application

Photocatalytic Active Self-Cleaning Cement-Based Materials. Compositions, Properties, Application

TiO2–SiO2 nanocomposites from technological wastes for self-cleaning cement composition

Acid-Base Properties of the Surface of Micro-Reinforcing Fibers as a Component of a Photocatalytic Composite Material for Plaster Mixes

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