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- Title
In‐situ Platinum Plasmon Resonance Effect Prompt Titanium Dioxide Nanocube Photocatalytic Hydrogen Evolution.
- Authors
Hu, Shan; Qiao, Panzhe; Fu, Yunqi; Li, Fuxiang; Xiao, Xudong; Zhao, Chen; Feng, Qingmao; Jiang, Baojiang
- Abstract
Herein, Pt‐decorated TiO2 nanocube hierarchy structure (Pt‐TNCB) was fabricated by a facile solvothermal synthesis and in‐situ photodeposition strategy. The Pt‐TNCB exhibits an excellent solar‐driven photocatalytic hydrogen evolution rate (337.84 μmol h−1), which is about 37 times higher than that of TNCB (9.19 μmol h−1). Interestingly, its photocatalytic property is still superior to TNCB with post modification Pt (1 wt %) (208.11 μmol h−1). The introduction of Pt efficiently extends the photoresponse of the composite material from UV to visible light region, simultaneously boosting their solar‐driven photocatalytic performance, which attribute to the porous structure, the sub size TNCB, the SPR effect of Pt NPs and strong interaction of two components. In fact, Pt NPs can enhance collective oscillations on delocalized electrons, which is conducive to capture electrons and hinder the recombination of photogenerated electron‐hole pairs, leading to the longer lifetime of photogenerated charges. The fabrication of Pt‐TNCB photocatalyst with SPR effect may provide a promising method to improve visible‐light photocatalytic activities for traditional photocatalysts. Pt‐decorated TiO2 nanocube construction was fabricated through a simple hydrothermal synthesis and in‐situ photodeposition strategy. It exhibited an excellent solar‐driven photocatalytic hydrogen evolution rate (337.84 μmol h−1), which attribute to the porous structure, the small size TiO2 nanocube and the in‐situ surface plasmonic resonance (SPR) effect of Pt nanoparticles.
- Subjects
SURFACE plasmon resonance; TITANIUM dioxide; PHOTOCATALYSTS; ELECTRON delocalization; EXCITON theory; BAND gaps
- Publication
Chemistry - An Asian Journal, 2019, Vol 14, Issue 4, p592
- ISSN
1861-4728
- Publication type
Article
- DOI
10.1002/asia.201801893