Tailoring surface defects in Plasma Electrolytic Oxidation (PEO) treated 2-D black TiO2: Post-treatment role, and intensification by peroxymonosulfate activation in visible light-driven photocatalysis

Combination of alkali treatment and Ag3PO4 loading effectively improves the photocatalytic activity of TiO2 nanoflowers

“…However, TiO 2 also has its own limitations. 7,8 On the one hand, TiO 2 has a wide band gap and requires high energy for electron transition, and so photogenerated carriers can only be generated by UV excitation. On the other hand, the recombination probability of photogenerated electrons and photogenerated holes in TiO 2 is high, and the lifetime of photogenerated carriers is short.…”

Relationship between Pd Facets and Surface Active Sites in Photocatalysis via NMR Molecular Probes

“…Catalysts have always been the dominant components in catalytic reactions. TiO 2 , C 3 N 4 , and CeO 2 are some common semiconductors that are also used as photocatalysts. − However, these simple semiconductor materials suffer from fast recombination between photoexcited electrons and holes, leading to low photocatalytic performances . To address this problem, loading precious metal cocatalysts on support materials has been proposed as an efficient method to generate Schottky junctions and improve the carrier-separation efficiency in an attempt to obtain better photocatalytic performance. , Pt metal, one of the most effective cocatalysts, is known for its superior photocatalytic behavior; however, its scarcity and high cost restrict its further application and development. , Pd can be an appropriate substitute for Pt because of its lower cost and higher activity. , However, the efficient use of catalysts still remains a challenge.…”