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- W2364228894 abstract "Fe_3O_4 catalyst supported on spherical γ-Al2O3 was prepared with and without ultrasonic treatment during the impregnation step,and the heterogeneous catalytic oxidation of dimethoate wastewater was conducted with Fenton reagent.Then,the physical and chemical properties of the catalysts were analyzed by means of XRD,ICP-AES and SEM,especially the effect of Fe3O4 dispersity on γ-Al2O3.The results showed that the activity of the supported catalysts prepared with ultrasonic treatment for dimethoate was higher than those without ultrasonic treatment and the corresponding degradation rate doubled those of the catalyst obtained by impregnation.The probable cause was that for catalysts prepared with ultrasonic treatment,Fe_3O_4 was well dispersed on the catalyst surface with small particle size,or existed in non-crystalline amorphous state,and Fe content on the catalyst surface was higher than those without ultrasonic treatment." @default.
- W2364228894 created "2016-06-24" @default.
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- W2364228894 date "2007-01-01" @default.
- W2364228894 modified "2023-09-27" @default.
- W2364228894 title "Preparation of Fe_3O_4/γ-Al_2O_3 catalyst by ultrasonic impregnation and its characterization and catalytic activity" @default.
- W2364228894 hasPublicationYear "2007" @default.
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