Development of visible light active self-cleaning clay roofing tiles as novel building materials: An investigation on the effects of α-Fe2O3 coating and firing temperature

Yavaş, Ahmet; Güneş, Fethullah; Erol, Mustafa; Sütçü, Mücahit; Güler, Saadet; Kayalar, Merve Torman; Keskin, Özgür Yasin

doi:10.1016/j.jclepro.2022.132302

Cited by 11 publications

(9 citation statements)

References 55 publications

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“…They were all found to be between 400 and 4500 cm −1 in frequency, it was stated. As a consequence of H 2 O molecules physically adsorbed on the clay surface, the FT-IR spectra of ATP natural clay base material (figure 2(a)) are distinguished by modest absorption peaks at 3543.74 and 1649.87 cm −1 , which reflect the stretching and bending vibrations of OH, respectively [35]. Also known as zeolite water deformation, the peak at 1648.64 is a prominent feature.…”

Section: Samples Characterizationmentioning

confidence: 99%

“…Clay-based radiation shields have become the most popular composite materials as a result of the sustainable advancement of technological exploration of natural clay minerals. One of these materials, clay, is more frequently used for heavy-duty buildings than many others [35] and is utilized in building and construction worldwide. The potential for using natural clays and minerals as radiation shielding has been thoroughly investigated by several researchers [33,34,[36][37][38].…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of shielding properties of a developed nanocomposite from intercalated attapulgite clay by Cd/Pb oxides nanoparticles

Negm,

El-Sharkawy,

Abdeltwab

et al. 2024

Phys. Scr.

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The study investigated new nanocomposites' γ-ray and neutron shielding properties based on raw attapulgite, a clay matrix intercalated with different weight percentages of mixed nanometal oxides CdO and PbO. The various percentages were as follows: (100-2x)%Attapulgite + x%CdO + x%PbO, abbreviated as (AT100-2xCdxPbx), where x= 5, 10, 15%. The nanocomposites were characterized using XRD, FTIR, and EDX, confirming their successful preparation. SEM images revealed that the mixed oxide nanoparticles were successfully intercalated into the layers of attapulgite clay, with an average particle size of approximately 31.46 nm. The bulk densities of the prepared nanocomposites were measured to be in the range of 2.0342 to 2.5550 g/cm3. GEANT4 simulations were employed to evaluate the nanocomposites' γ-ray and neutron shielding performance in the photon energy range of 0.015 to 15 MeV. Phys-X code was used for verification. The simulation results showed a maximum difference of approximately 9.5% between GEANT4 and Phys-X predictions. To assess the γ-ray shielding performance, various shielding parameters were calculated at selected photon energies. The µm values ranged from 4.589 to 0.020 cm2.g-1, 6.311 to 0.021 cm2.g-1, 8.350 to 0.022 cm2.g-1 and 10.804 to 0.023 cm2.g-1 for raw attapulgite, AT90Pb5Cd5, AT80Pb10Cd10, AT70Pb15Cd15 across the photon energy range. The AT70Pb15Cd15 nanocomposite exhibited the highest µm, Zeff, Zeq, and the lowest T1/2, T1/10, and MFP values. Notably, it also demonstrated the highest FNRCS (approximately 0.1 cm-1). These findings suggest that clay-based nanocomposites represent a new class of low-cost, locally available advanced materials with potential applications in γ-ray and neutron shielding characteristics.

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Section: Samples Characterizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Evaluation of shielding properties of a developed nanocomposite from intercalated attapulgite clay by Cd/Pb oxides nanoparticles

Negm,

El-Sharkawy,

Abdeltwab

et al. 2024

Phys. Scr.

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“…Simultaneously, magnesium oxide nanoparticles introduce the low surface energy required for the superhydrophobic effect. This combination synergistically enhances the coating's water-repellent characteristics and durability [2].…”

Section: Introductionmentioning

confidence: 99%

“…The combination of unique properties offered by superhydrophobic surfaces, such as selfcleaning, anti-corrosion, and anti-icing, has led to their exploration in various practical scenarios. One such promising advancement is the Fe 2 O 3 -MgO superhydrophobic coating on sponge surfaces, which has shown immense potential for enhancing material performance and expanding the scope of superhydrophobic applications [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

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Effect of stearic acid concentration on the superhydrophobic properties of sponge coated by Fe₂O₃-MgO nanocomposite

Jumaah,

Sabry,

Aziz

2024

IOP Conf. Ser.: Earth Environ. Sci.

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The nanocomposite (Fe2o3-MgO) was prepared using the hydrothermal method. A super hydrophobicity surface was successfully fabricated using a nanocomposite with stearic acid at different molar ratios using the dip coting method on the sponge. The prepared samples were characterized by XRD, FE-SEM, AFM, Raman and contact angle techniques. The XRD pattern of Fe2O3-MgO nanocomposite exhibits that the XRD pattern aligns well with both reference codes for iron oxide and magnesium oxide. This consistency validates the presence of both iron and magnesium oxide phases in the nanocomposite. FESEM images of the coated sponges apparent that all the coated sponges share a strikingly similar morphology. They exhibit a layered structure, with plates that are arranged in parallel to each other. According to AFM results, the (Fe2O3-MgO) nanocomposite exhibited the highest surface roughness among the three samples, with an Ra of 69.41 nm and an Rq of 83.30 nm. The contact angles of samples with x = 0.01, 0.05, 0.1, and 0.2 are equal to 140.1°, 142.3°, 147.6°, and 152.9°, respectively. Therefore, there is a direct relationship between the molar ratio of stearic acid to nanocomposite and the contact angle. As the molar ratio increases, the contact angle also rises, due to the increase in surface roughness.

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Self-cleaning and photocatalytic properties of eco-friendly clay-based facing bricks from industrial and natural wastes

Yavaş

Atan

Sütçü

2023

Environ Sci Pollut Res

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Development of visible light active self-cleaning clay roofing tiles as novel building materials: An investigation on the effects of α-Fe2O3 coating and firing temperature

Cited by 11 publications

References 55 publications

Evaluation of shielding properties of a developed nanocomposite from intercalated attapulgite clay by Cd/Pb oxides nanoparticles

Evaluation of shielding properties of a developed nanocomposite from intercalated attapulgite clay by Cd/Pb oxides nanoparticles

Effect of stearic acid concentration on the superhydrophobic properties of sponge coated by Fe₂O₃-MgO nanocomposite

Self-cleaning and photocatalytic properties of eco-friendly clay-based facing bricks from industrial and natural wastes

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Development of visible light active self-cleaning clay roofing tiles as novel building materials: An investigation on the effects of α-Fe2O3 coating and firing temperature

Cited by 11 publications

References 55 publications

Evaluation of shielding properties of a developed nanocomposite from intercalated attapulgite clay by Cd/Pb oxides nanoparticles

Evaluation of shielding properties of a developed nanocomposite from intercalated attapulgite clay by Cd/Pb oxides nanoparticles

Effect of stearic acid concentration on the superhydrophobic properties of sponge coated by Fe2O3-MgO nanocomposite

Self-cleaning and photocatalytic properties of eco-friendly clay-based facing bricks from industrial and natural wastes

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Effect of stearic acid concentration on the superhydrophobic properties of sponge coated by Fe₂O₃-MgO nanocomposite