ArticleOpen veterinary journal2026
Titanium dioxide nanoparticles as a sustainable solution for soil and water polluted with naphthalene and phenanthrene.
Article in Open veterinary journal, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Polycyclic aromatic hydrocarbons (PAHs) are among the environmental pollutants that are classified according to the United States Environmental Protection Agency (USEPA) as a priority concern. Generally, the primary source of PAHs is the incomplete combustion of organic matter from sources like coal, oil, gas, wood, tobacco, and garbage. In addition, the natural sources that may cause PAH-environmental pollution are volcanic eruptions and natural oil seepage. Thus, a PAH-polluted environment poses risks to human and animal health. Among the compounds that were monitored in great concentrations in water and soil environments are naphthalene (Nap) and phenanthrene (Phe). Aim: This study aimed to remediate the environmental contamination of a PAH mixture using a minimal and effective dosage of titanium dioxide nanoparticles (TiO₂ NPs). Methods: A commercially available TiO₂ NPs were characterized using transmission electron microscopy and particle size distribution, while X-ray diffraction was used to characterize both the tested soil mineralogically and the TiO₂ NPs. In addition, the remediation efficacy of different TiO₂ NPs concentrations (125, 250, and 500 mg l Results: The results revealed that by increasing the TiO₂ NPs concentration, the remediation efficacy was increased. When the TiO₂ NPs concentration was increased from 125 to 500 mg l Conclusion: TiO₂ NPs have potent soil remediation efficacy, especially under dark conditions. The following factors should be considered for the best remediation efficacy: the source of light, catalyst concentration, and the pollutant itself. To the best of our knowledge, this is the first study to offer an environmentally sustainable, practical, and economically feasible solution for remediating polluted environments, especially subsurface soil, using low, safe TiO₂ NP doses.
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