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Which consequence results when high-energy photons induce electronic transitions in TiO₂?

A)Photocatalysis accelerates contaminant degradation
B)Resistivity increases with bandgap widening
C)Fluorescence reduces quantum dot efficiency
D)Work function affects anode stripping

💡 Explanation

Photocatalysis occurs, because electron-hole pairs generated by interband transitions in TiO₂ under UV illumination promote redox reactions. Therefore, pollutants decompose faster, rather than a change in bulk electronic properties because the photons directly alter the surface chemistry.

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