Preparation and characterization of magnetic nanocomposite catalysts with double Au nanoparticle layers | |
Rahman, Zia Ur1; Zhang TT(张婷婷)1,2; Cui SW(崔思文)1,2; Wang DA(王道爱)1![]() | |
刊名 | RSC Advances
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2015 | |
卷号 | 5期号:121页码:99697-99705 |
ISSN号 | 2046-2069 |
通讯作者 | 王道爱 |
英文摘要 | In this paper magnetic nanocomposite catalysts, with a single gold catalytic layer (Fe3O4@SiO2-Au and Fe3O4@SiO2-Au@mSiO2), double gold catalytic layers (Fe3O4@SiO2-Au@mSiO2-Au), and with one gold layer and one silver layer (Fe3O4@SiO2-Au@mSiO2-Ag), were prepared through simple steps. Different techniques were used for characterization of the as prepared nanocomposite catalysts, such as transmission electron microscopy (TEM), X-ray diffraction (XRD), a vibrating sample magnetometer (VSM), energy-dispersive X-ray spectroscopy (EDX) etc. The catalysts were used for the catalytic reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) in the presence of NaHB4. All the nanocomposite catalysts showed very good catalytic activity; however the nanocomposites with double catalytic layers (Fe3O4@SiO2-Au@mSiO2-Au and Fe3O4@SiO2-Au@mSiO2-Ag) showed excellent catalytic activity for the reduction reaction of 4-nitrophenol. Due to the magnetic core, the nanocomposite catalysts showed magnetic properties and can be easily separated and recycled many times without any loss in activity. In the case of nanocomposite catalysts with Au nanoparticles protected by silica (Fe3O4@SiO2-Au@mSiO2) indicated better recyclability compared to other nanocomposites. |
学科主题 | 材料科学与物理化学 |
收录类别 | SCI |
资助信息 | NSFC (21303227;21573259);the “Hundred Talents Program” of Chinese Academy of Sciences |
语种 | 英语 |
WOS记录号 | WOS:000365406800015 |
内容类型 | 期刊论文 |
源URL | [http://210.77.64.217/handle/362003/18864] ![]() |
专题 | 兰州化学物理研究所_固体润滑国家重点实验室 |
作者单位 | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Rahman, Zia Ur,Zhang TT,Cui SW,et al. Preparation and characterization of magnetic nanocomposite catalysts with double Au nanoparticle layers[J]. RSC Advances,2015,5(121):99697-99705. |
APA | Rahman, Zia Ur,Zhang TT,Cui SW,&Wang DA.(2015).Preparation and characterization of magnetic nanocomposite catalysts with double Au nanoparticle layers.RSC Advances,5(121),99697-99705. |
MLA | Rahman, Zia Ur,et al."Preparation and characterization of magnetic nanocomposite catalysts with double Au nanoparticle layers".RSC Advances 5.121(2015):99697-99705. |
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