TiO₂-Based Materials for (Photo)Catalysis

Dear Colleagues,

In recent years, oxide-based photocatalysts have emerged as crucial materials to face environmental and energy issues. The photocatalytic process involves the creation of electron/hole pairs and their subsequent transfer to the particle surface to perform the desired reduction and oxidation processes. The key requirement to obtain efficient photocatalysts is to engineer the band edge positions to produce the appropriate redox species and to efficiently absorb solar radiation. In this context, different approaches have been proposed, including doping with metal impurities or nonmetal atoms, preparation of oxygen-deficient oxide materials, and coupling with narrow band gap semiconductors. Shape-engineering is also emerging as an additional strategy to finely tune the physicochemical properties of photocatalytic materials to optimize surface reactivity and selectivity.

The present Special Issue of Catalysts is aimed at showing the current state-of-the-art in the synthesis, characterization, and modeling of oxide-based materials employed in advanced photocatalytic applications, including CO₂ reduction, water splitting, and environmental remediation.

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