Abstract
Endeavoring to the imperative and challenging issue of developing efficient and applicable visible light responsive photocatalysts, we demonstrate a general and versatile route for modifying TiO2-based photocatalysts through surface chlorination, making the chlorinated photocatalysts work efficiently in both the UV and visible regions. The chlorine acted not only as a key component, endowing TiO2 with fascinating visible light activity, but also as an effective promoter, rendering both visible light and UV photocatalysts with remarkably enhanced activity. The increase in oxygen vacancies and the chain transfer reaction initiated by chlorine radicals were mainly responsible for the remarkable improvement in activity.
Published Version
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