首页|High-loading single-atom Pt/TiO2 mesoporous catalysts for superior photocatalytic oxidation of benzyl alcohol
High-loading single-atom Pt/TiO2 mesoporous catalysts for superior photocatalytic oxidation of benzyl alcohol
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NSTL
Elsevier
Photocatalysis utilized solar energy with metal oxide semiconductors has been considered as one of the attractive green routes for organics' conversion. The construction of high-density co-catalytic sites is essential for the surface reaction kinetics. In this work, a high-efficiency mesoporous TiO2 decorated with single atomic Pt loading of 1 at% (2.1 wt%) had been successfully achieved. The high specific surface area of mesopomus TiO2 affords adequate physical surface for the resident of atomic Pt, thus stabilizing a high areal density of single-atom reaction sites. The optimized single-atom Pt/TiO2 revealed a performance of 4.1 mmol/h/g(cat) for photocatalytic oxidation of benzyl alcohol under visible light irradiation that is 3.8 folds than that of Pt-modified commercial TiO2 photocatalysts. The reactivity will further enhance after the introduction of plasmonic Au nanoparticles and the finally sample (1 at% Pt-0.075 at% Au)/TiO2-MP exhibited salient activity (4.5 mmol/h/g eat ) and stability. This work paves a potential way to boost the performance of metal oxide semiconductors for green photocatalytic conversion of organics.
NSTL
Elsevier
