研究目的
Investigating the photocatalytic degradation of Acid Brown-43 dye using synthesized SiO2/TiO2 and SiO2/Al2O3 nanocomposites under solar light irradiation.
研究成果
The synthesized SiO2/TiO2 and SiO2/Al2O3 nanocomposites demonstrated high photocatalytic activity for the degradation of Acid Brown-43 dye under solar light irradiation. The efficiency of degradation increased with contact time and catalyst dosage, indicating the potential of these materials for environmental remediation applications.
研究不足
The study focuses on the degradation of a specific dye (Acid Brown-43) under solar light irradiation. The scalability of the synthesis method and the applicability to other pollutants or under different light sources were not explored.
1：Experimental Design and Method Selection:
The study employed a chemical precipitation technique using microwave irradiation for the synthesis of SiO2/TiO2 and SiO2/Al2O3 nanocomposites. The photocatalytic activity was evaluated under solar light irradiation.
2：Sample Selection and Data Sources:
Acid Brown-43 dye was used as the model pollutant. The nanocomposites were characterized using SEM, EDAX, and TEM analysis.
3：List of Experimental Equipment and Materials:
Instruments used include a Spectrophotometer (Genesys 10uv, Thermo Electron Corporation), SEM (JOEL, JSM-3690LV), EDAX (JOEL, JED-2300 analyzer), and TEM (JEOL-TEM2100). Chemicals included Titanium tetra isopropoxide, silicic acid, THF, ethanol, isopropyl alcohol, hydrochloric acid, and Aluminium chloride.
4：0). Chemicals included Titanium tetra isopropoxide, silicic acid, THF, ethanol, isopropyl alcohol, hydrochloric acid, and Aluminium chloride.
Experimental Procedures and Operational Workflow:
4. Experimental Procedures and Operational Workflow: The nanocomposites were synthesized via sol-gel technique, characterized, and then used in photocatalytic degradation experiments under varying conditions of time and catalyst dosage.
5：Data Analysis Methods:
The degradation efficiency was calculated based on absorbance measurements before and after irradiation using a UV-Visible spectrophotometer.
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