Ultrasonic Synthesis and Application in Catalytic 4-Nitrophenols Reduction of Au/Fe3O4

被引：5

作者：

Gu Yan ^{[1
]}

Liu Guan-Ting ^{[1
]}

Zou Cheng-Heng ^{[1
]}

Zhang Zhen ^{[1
]}

Liu Juan ^{[1
]}

Sun Ming ^{[1
]}

Cheng Gao ^{[1
]}

Yu Lin ^{[1
]}

机构：

[1] Guangdong Univ Technol, Sch Chem Engn & Light Ind, Guangzhou 510006, Guangdong, Peoples R China

来源：

CHINESE JOURNAL OF INORGANIC CHEMISTRY | 2017年 / 33卷 / 05期

关键词：

Au nanoparticles; Fe3O4; 4-nitrophenols; catalytic reduction; GOLD; NANOCOMPOSITES; NANOPARTICLES; DEGRADATION; FABRICATION; PARTICLES; DYE;

D O I：

10.11862/CJIC.2017.102

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

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. Au 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%.

引用

页码：787 / 795

页数：9

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