High-efficiency and magnetically separable nanocatalyst: β-cyclodextrin modified core–shell hybrid magnetic nanoparticles

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• 作者：Mi Zhou ; Songtao Cai ; Jie Li ; Xin Qian…
• 关键词：High ; efficiency ; Magnetically separable nanocatalyst ; Core–shell ; Hybrid magnetic nanoparticles
• 刊名：Journal of Inclusion Phenomena and Macrocyclic Chemistry
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：87
• 期：1-2
• 页码：45-51
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Organic Chemistry; Food Science; Crystallography and Scattering Methods;
• 出版者：Springer Netherlands
• ISSN：1573-1111
• 卷排序：87

文摘

A novel hybrid magnetic nanoparticle, which was fabricated by Fe₃O₄ nanoparticle modified with β-cyclodextrin (Fe₃O₄@SiO₂-GPTSCD), was prepared via a flexible method, including thermal decomposition, sol–gel process and ring-opening reaction of epoxy group. The structures had been characterized by fourier transform infrared spectra, transmission electron microscopy, and thermogravimetric analysis. The magnetic property of the resulting nanoparticles was kept, that they could be used for magnetic separation. Most excitingly, they showed high-efficiency catalytic activity with sodium hypochlorite and hydrogen peroxide as the oxidant in selective oxidation of benzyl alcohol, even higher than pure β-cyclodextrin (CD). It suggests that the hybrid nanoparticles are expected to be applied in more extensive fields, due to the combination of the activity of CD immobilized on the surface of nanoparticles and the characteristic of nanomaterials.