研究目的
To fabricate core-shell structured TiO2@In2O3 with high visible-light photocatalytic activity for the degradation of methyl orange (MO).
研究成果
TiO2@In2O3 composites with core-shell structure were successfully synthesized and showed higher visible-light photocatalytic activity for the degradation of MO than pure TiO2 and In2O3. The composites were stable and maintained high photocatalytic activity over multiple cycles.
研究不足
The study focuses on the photocatalytic degradation of MO under visible light, and the stability of the TiO2@In2O3 composites was tested over five cycles. Further optimization of the synthesis method and exploration of other photocatalytic applications could be areas for future research.
1：Experimental Design and Method Selection:
The study employed a solvothermal method to synthesize TiO2@In2O3 composites with core-shell structure.
2：Sample Selection and Data Sources:
Anatase TiO2 spheres were synthesized and used as the core, with In2O3 layers forming the shell.
3：List of Experimental Equipment and Materials:
Titanium tetraisopropoxide (TTIP), InNO3, CO(NH2)2, diethylene glycol (DEG), and other chemicals were used. Equipment included TEM (JEM-2010), XRD (Bruker D8 Advance), and UV-vis DRS (UV-2600, Shimadzu).
4：Experimental Procedures and Operational Workflow:
TiO2 precursor was synthesized and calcined to form anatase TiO2 spheres. In2O3 was then deposited on TiO2 via solvothermal treatment.
5：Data Analysis Methods:
The photocatalytic activity was evaluated by degrading MO under visible light irradiation, with degradation rates calculated based on UV-vis absorption spectra.
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