Summary
This experimental study examined how surface fluorination modifies the structural, morphological, surface and electronic properties of titanium dioxide (TiO₂) nanoparticles. Whilst fluorination did not alter the core structural or morphological properties, it induced significant changes in surface charge and electronic properties through intra-band-gap energy states. The resulting fluorinated TiO₂ showed enhanced photocatalytic activity for degrading poorly soluble pollutants such as 1-methylnaphthalene, with faster degradation kinetics than both pristine and benchmark commercial TiO₂ materials.
Regional applicability
This materials chemistry research has limited direct application to UK farming systems or soil health. However, findings on photocatalytic remediation of persistent organic pollutants such as polycyclic aromatic hydrocarbons could inform development of environmental remediation technologies applicable to contaminated land management in the UK context.
Key measures
X-ray diffraction, specific surface area, transmission and scanning electron microscopy, chemical and thermogravimetric analyses, diffuse reflectance spectroscopy, X-ray and UV photoelectron spectroscopies, time-resolved fluorescence spectroscopy, photoelectrochemical measurements, photocatalytic degradation kinetics of 1-methylnaphthalene
Outcomes reported
The study characterised surface and electronic properties of fluorinated TiO₂ nanoparticles and evaluated their photocatalytic activity for degrading 1-methylnaphthalene. Fluorinated TiO₂ demonstrated faster degradation kinetics compared to pristine TiO₂ and commercial TiO₂ P25.
Topic tags
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