研究目的
To synthesize a ternary nanocomposite of Fe3O4@rGO@AgI for enhanced photocatalytic degradation of phenol under visible light irradiation.
研究成果
The ternary Fe3O4@rGO@AgI nanocomposite exhibited superior photocatalytic performance for phenol degradation under UV light, attributed to the synergistic effects of its components. The nanocomposite showed excellent stability and recyclability, making it a promising candidate for practical applications in water treatment.
研究不足
The study focused on the degradation of phenol under specific conditions. The scalability and cost-effectiveness of the synthesis method for industrial applications were not addressed.
1：Experimental Design and Method Selection
The ternary nanocomposite was synthesized by a re?ux method. Prior to the formation of the ternary system, tetraethyl orthosilicate (TEOS) and 3-aminopropyl triethoxysilane (APTES) were used to assist amino functional groups to reduce the tendency of Fe3O4 agglomeration.
2：Sample Selection and Data Sources
Phenol was used as the model pollutant. The photocatalytic performance was evaluated by measuring the degradation of phenol under UV irradiation.
3：List of Experimental Equipment and Materials
Materials included NaNO3, Graphite powder, H2SO4, H2O2 (30%), KMnO4, NaOH, Isopropyl alcohol, NH3·H2O (25 wt%), FeSO4·7H2O, AgNO3, and NaI. Equipment included XRD, FESEM, TEM, TGA, FTIR, and PL spectroscopy.
4：Experimental Procedures and Operational Workflow
The synthesis involved the preparation of Fe3O4, GO, and then the ternary nanocomposite Fe3O4@rGO@AgI. Photocatalytic experiments were conducted under UV light, and samples were analyzed by HPLC.
5：Data Analysis Methods
The degradation efficiency was calculated using the Langmuir–Hinshelwood kinetic model. The photocatalytic performance was evaluated based on the degradation percentage of phenol.
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