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Ultrasonic Synthesis and Application in Catalytic 4-Nitrophenols Reduction of Au/Fe3O4 |
Author Name | Affiliation | E-mail | GU Yan | Guangdong University of Technology, School of Chemical Engineering and Light Industry, Guangzhou 510006, China | | LIU Guan-Ting | Guangdong University of Technology, School of Chemical Engineering and Light Industry, Guangzhou 510006, China | | ZOU Cheng-Heng | Guangdong University of Technology, School of Chemical Engineering and Light Industry, Guangzhou 510006, China | | ZHANG Zhen | Guangdong University of Technology, School of Chemical Engineering and Light Industry, Guangzhou 510006, China | | LIU Juan | Guangdong University of Technology, School of Chemical Engineering and Light Industry, Guangzhou 510006, China | | SUN Ming | Guangdong University of Technology, School of Chemical Engineering and Light Industry, Guangzhou 510006, China | | CHENG Gao | Guangdong University of Technology, School of Chemical Engineering and Light Industry, Guangzhou 510006, China | | YU Lin | Guangdong University of Technology, School of Chemical Engineering and Light Industry, Guangzhou 510006, China | gych@gdut.edu.cn |
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Abstract: The Au/Fe3O4 catalyst was successfully prepared by the simple ultrasonic method and in-situ reduction method. Au was immobilized on the surface of Fe3O4 using APTES as an organic bridging bond to obtain monodisperse magnetic Au/Fe3O4. Au0 could not agglomerated in the condition of NH3+, so that it had high catalytic activity and stability. The results of XRD, HRTEM, EDS and XPS showed that Au/Fe3O4 has been prepared successfully. It was used to catalyze the reduction of 4-nitrophenols to 4-aminophenols, which showed high catalytic activity with rate constant of 0.225 6 min-1. The repeatability test showed that the catalyst had good stability. After 9 cycles of reaction, the conversion rate of the reaction was still 94%. |
Keywords: Au nanoparticles Fe3O4 4-nitrophenols catalytic reduction |
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GU Yan,LIU Guan-Ting,ZOU Cheng-Heng,ZHANG Zhen,LIU Juan,SUN Ming,CHENG Gao,YU Lin.Ultrasonic Synthesis and Application in Catalytic 4-Nitrophenols Reduction of Au/Fe3O4[J].Chinese Journal of Inorganic Chemistry,2017,33(5):787-795. |
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