Preparation and characterization of magnetic nanocomposite catalysts with double Au nanoparticle layers | |
Department | 固体润滑国家重点实验室 |
Rahman, Zia Ur1; Zhang TT(张婷婷)1,2; Cui SW(崔思文)1,2; Wang DA(王道爱)1; Wang DA(王道爱) | |
2015 | |
Source Publication | RSC Advances |
ISSN | 2046-2069 |
Volume | 5Issue:121Pages:99697-99705 |
Abstract | 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. |
Subject Area | 材料科学与物理化学 |
DOI | 10.1039/c5ra18119d |
Funding Organization | NSFC (21303227;21573259);the “Hundred Talents Program” of Chinese Academy of Sciences |
Indexed By | SCI |
If | 3.289 |
Language | 英语 |
Funding Project | 材料表面与界面行为研究组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/18864 |
Collection | 固体润滑国家重点实验室(LSL) |
Corresponding Author | Wang DA(王道爱) |
Affiliation | 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 |
Recommended Citation 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,&王道爱.(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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