Fe-Modified TiO₂ Photocatalyst for Effective Indoor Bacterial Inactivation Using LED Light: Toward Safer Disinfection Technologies.

ABSTRACT: Commercial TiO₂ P25 was modified with iron species using simple, mild and cost-effective synthesis conditions. The novel TiO₂-Fe material exhibits both high disinfectant activity and long stability under visible light irradiation. The bactericidal activity of the synthesized catalyst was assessed by its capability to inactivate Escherichia coli under both simulated solar and LED-visible light. XRD confirmed the structural integrity of the material, while diffuse reflectance spectroscopy evidenced its absorption in the visible region. Mössbauer and FTIR analysis of the TiO₂-Fe catalyst indicate that iron exists predominantly in the Fe³⁺ state in a Ti-O-Fe bond. Electrochemical studies allowed to correlate the reactivity with the conduction

SUBMITTER: Angulo R 

PROVIDER: S-EPMC12750386 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature