研究目的
Investigating the synthesis, doping, and characterization of undoped and Ni-doped TiO2 thin films for photocatalytic applications.
研究成果
The Ni-doped TiO2 film showed higher photocatalytic activity under UV irradiation compared to the pure film, attributed to the presence of Ni atoms and better crystallization. The study demonstrates the feasibility of synthesizing and doping TiO2 films in a single process using a modified laser ion source.
研究不足
The study focuses on the photocatalytic activity under UV irradiation and does not extensively explore the visible light photocatalytic performance. The doping process is limited to nickel ions, and the effect of other dopants is not investigated.
1：Experimental Design and Method Selection:
The study utilized a modified laser ion source for simultaneous pulsed laser deposition (PLD) and low-energy ion implantation.
2：Sample Selection and Data Sources:
Pure and Ni-doped TiO2 films were synthesized on glass substrates.
3：List of Experimental Equipment and Materials:
A KrF excimer laser, rutile and nickel targets, and a Faraday cup for ion dose evaluation.
4：Experimental Procedures and Operational Workflow:
The process involved laser ablation for film synthesis and ion implantation for doping, followed by thermal treatment and characterization.
5：Data Analysis Methods:
Raman spectroscopy for crystalline phase analysis and methylene blue degradation tests for photocatalytic activity assessment.
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