研究目的
To investigate the impact of Fe-doped TiO2 prepared by sol-gel and dip-coating process on CO2 reduction performance under visible and UV light illumination.
研究成果
Fe doping enhances the CO2 reduction performance of TiO2 under both UV and visible light. The double overlapping arrangement of Fe/TiO2 photocatalysts is particularly effective, showing a significant increase in CO production under UV light. The study suggests that optimizing the base material and doping conditions can further improve photocatalytic performance.
研究不足
The study is limited by the specific base materials used (netlike glass fiber and Cu disc) and the doping condition (Fe at 10wt%). The effect of other dopants or base materials was not explored. The study also did not investigate the magnetic properties of the prepared Fe/TiO2.
1：Experimental Design and Method Selection:
The study employed sol-gel and dip-coating processes to prepare Fe-doped TiO2 films on netlike glass fiber and Cu disc. The photocatalytic performance was evaluated under Xe lamp illumination with and without UV light.
2：Sample Selection and Data Sources:
Netlike glass fiber and Cu disc were used as base materials for coating Fe/TiO2 films. The characterization was done using SEM and EPMA.
3：List of Experimental Equipment and Materials:
Equipment included SEM (JXA-8530F, JEOL Ltd.), EPMA (JXA-8530F, JEOL Ltd.), Xe lamp (L2175, Hamamatsu Photonics K.K.), and sharp cut filter (SCF-49.5C-42L, SIGMA KOKI Co. Ltd.). Materials included [(CH3)2CHO]4Ti, anhydrous C2H5OH, distilled water, HCl, and Fe powders.
4：5C-42L, SIGMA KOKI Co. Ltd.). Materials included [(CH3)2CHO]4Ti, anhydrous C2H5OH, distilled water, HCl, and Fe powders.
Experimental Procedures and Operational Workflow:
4. Experimental Procedures and Operational Workflow: The base materials were dipped into Fe/TiO2 sol solution, dried, and fired. The CO2 reduction performance was tested under Xe lamp illumination with and without UV light, with gas samples analyzed by FID gas chromatograph.
5：Data Analysis Methods:
The concentration of CO produced was measured and compared among different photocatalysts and illumination conditions.
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