Fe3O4@SiO2@Ag-TiO2光催化降解染料废水

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中图分类号:TS195.644 文献标志码:A 文章编号:2097-2911-(2025)06-0045-08

Abstract:Core-shell Fe3O4@SiO2@TiO2 and Ag-doped Fe3O4@SiO2@Ag-TiO2 photocatalysts were successfully prepared by solvothermal method and sol-gel method.Superparamagnetic Fe3O4 asa magnetic core could realize the recycling of photocatalyst. The influence mechanism of silver doping on the structure and chemical properties of the photocatalyst was studied by XRD,UV-Vis DRS and TEM.Under simulated light conditions, 6% (2号 Fe3O4@SiO2@Ag-TiO2 catalyst showed excellent photocatalytic performance for 10mg/L methyl orange solution,and the degradationrate of dye wastewater reached 94.93% in 30min .Under the same experimental environment, after four cycles of experiments,the photocatalytic degradation rate of Fe3O4@SiO2@Ag-TiO2 was still above 89%

Keywords: Titanium dioxide; photocatalysis; silver doped; dye wastewater; sol-gel

随着工业的快速发展,含有大量有机染料的工业废水排放量与日俱增,如何高效、经济处理大量有毒、污染的工业染料废水是亟需解决的问题[1-3]。(剩余11657字)

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