Photocatalytic Performance of Cementitious Composites Modified with Second-Generation Nano-TiO2 Dispersions: Influence of Composition and Granulation on NOx Purification Efficiency

Coatings, Год журнала: 2025, Номер 15(2), С. 148 - 148

Опубликована: Янв. 29, 2025

This study investigated the influence of composition photocatalytic dispersions made with second-generation nano-TiO2 on air purification performance cementitious composites. Nine mortar series were prepared, incorporating variable content nano-TiO2, dispersing agent (superplasticizer), and hydrophobic admixture. The total mass in mortars was kept at same level. For composites, removal NOx evaluated under simulated laboratory conditions mimicking polish autumn/winter irradiation conditions. results indicate that within tested range variability, dispersion significantly influenced granulation dispersed particles, which turn affected A predictive model developed to account for environmental factors potentially influencing urban environments. estimated that, depending composition, composite’s layer could remove up 1.067 g/m2 NO2 per year favorable Photocatalytic composites can act as environmentally beneficial contributing carbon-negative construction practices improving quality. highlights dual benefits offsetting embedded carbon emissions enhancing efficiency sustainable infrastructure.

Язык: Английский

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Strontium-Modified TiO2 Nanotubes for Efficient Photodegradation of Formic Acid

Arabian Journal for Science and Engineering, Год журнала: 2025, Номер unknown

Опубликована: Март 6, 2025

Язык: Английский

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Surface-Engineered MoOx/CN Heterostructures Enable Long-Term SF6 Photodegradation via Suppressed Fluoridation

Molecules, Год журнала: 2025, Номер 30(7), С. 1481 - 1481

Опубликована: Март 27, 2025

Sulfur hexafluoride (SF6), the strongest greenhouse gas, has great challenges in degradation because of its stable structure, posing significant environmental concerns. Photocatalysis offers an environmentally friendly, low-energy solution, but fluoride deposition on catalysts reduces their activity, thus limiting large-scale application. To prevent catalyst poisoning, we report a thin-layer graphitic carbon nitride (CN) material loaded with MoOx (CNM) that resists for long-term SF6 degradation. By combining molecular structure design and nanostructure regulation, construct photocatalyst enhanced charge carrier mobility reduced transport distances. We find CNM exhibits high specific surface area, increased contact between reactants active sites, efficient electron–hole separation due to Mo-N bonds, achieving efficiency 1.73 mmol/g after one day prolonged catalytic durability catalyst, which is eight times higher than pristine g-C3N4 (0.21 mmol/g). demonstrate potential CNMs low-energy, high-efficiency degradation, offering new approach mitigate impact this potent gas. envision study will inspire further research into advanced photocatalytic materials remediation, contributing global efforts combating climate change.

Язык: Английский

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Sustainable Innovation: Removal of Chromium (VI) from Wastewater from Plastic Chromium Plating Industries Using Rice Husk as Photocatalyst

Results in Engineering, Год журнала: 2025, Номер unknown, С. 104756 - 104756

Опубликована: Март 1, 2025

Язык: Английский

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Modification strategies of Bi-based photocatalysts for nitrogen fixation: A mini review

Materials Science in Semiconductor Processing, Год журнала: 2024, Номер 188, С. 109249 - 109249

Опубликована: Дек. 29, 2024

Язык: Английский

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