研究目的
Investigating the effect of Pt nanoparticles size and TiO2 morphology on the photocatalytic activity under UV and visible light irradiation.
研究成果
The photocatalytic activity of Pt‐TiO2 composites under UV and visible light is strongly affected by the morphology of platinum nanoparticles deposited on the surface of TiO2. The tight control of Pt morphology allows the design of highly active materials with enhanced photocatalytic performance.
研究不足
The study focuses on the effect of Pt nanoparticles size and TiO2 morphology on photocatalytic activity, but does not extensively explore the underlying mechanisms or potential applications beyond phenol degradation.
1：Experimental Design and Method Selection:
The study used microemulsion and wet‐impregnation methods for the synthesis of Pt nanoparticles on TiO2 supports.
2：Sample Selection and Data Sources:
Commercial TiO2 samples (ST‐01 and P25), nanotubes, faceted particles, and mesoporous spheres were used as supports.
3：List of Experimental Equipment and Materials:
XRD, TEM, XPS, BET surface area analyzer, DR/UV‐vis spectrophotometer, and action spectrum analysis equipment were used.
4：Experimental Procedures and Operational Workflow:
Pt nanoparticles were deposited on TiO2 supports, followed by characterization and photocatalytic activity testing.
5：Data Analysis Methods:
The size and distribution of Pt nanoparticles were analyzed using TEM and XRD. Photocatalytic activity was evaluated by phenol degradation rates under UV and visible light.
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