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[1]汪苏平,黄 鑫,彭 敏,等.磁性纳米金催化剂的制备及其性能研究[J].武汉工程大学学报,2018,40(03):279-283.[doi:10. 3969/j. issn. 1674?2869. 2018. 03. 009]
 WANG Suping,HUANG Xin,PENG Min,et al.Preparation and Catalytic Properties of Nano-Gold Loaded on Magnetic Support[J].Journal of Wuhan Institute of Technology,2018,40(03):279-283.[doi:10. 3969/j. issn. 1674?2869. 2018. 03. 009]
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磁性纳米金催化剂的制备及其性能研究(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
40
期数:
2018年03期
页码:
279-283
栏目:
材料科学与工程
出版日期:
2018-06-26

文章信息/Info

Title:
Preparation and Catalytic Properties of Nano-Gold Loaded on Magnetic Support
文章编号:
20180309
作者:
汪苏平黄 鑫彭 敏吴江渝*
武汉工程大学材料科学与工程学院,湖北 武汉 430205
Author(s):
WANG Suping HUANG Xin PENG MinWU Jiangyu*
School of Materials Science and Engineering,Wuhan Institute of Technology,Wuhan 430205, China
关键词:
磁性纳米粒子纳米金催化还原对硝基苯酚
Keywords:
magnetic nanoparticles gold nanoparticles catalytic reduction p-nitrophenol
分类号:
TB383
DOI:
10. 3969/j. issn. 1674?2869. 2018. 03. 009
文献标志码:
A
摘要:
采用水热法制备Fe3O4纳米粒子,通过St?ber法在其表面均匀包覆一层SiO2,利用3-巯丙基三甲氧基硅烷对包硅磁性纳米粒子进行巯基修饰,将纳米金与带巯基的磁性纳米粒子结合制得磁性纳米催化剂。利用X射线衍射仪、透射电子显微镜、傅里叶红外分析仪对磁性纳米粒子进行表征,并研究了磁性纳米催化剂在不同条件下对对硝基苯酚还原反应的催化效率。结果表明:负载纳米金的磁性纳米催化剂平均粒径为323 nm。在实验条件下,催化对硝基苯酚还原反应可在6 min内完成,利用磁铁即可实现分离回收,重复利用8次催化效率仍在92%以上。
Abstract:
Iron oxide nanoparticles were prepared by hydrothermal method,and were coated with silica layer by a St?ber process. The silica-coated magnetic nanoparticles were modified with thiol groups with 3-mercaptopropyltrimethoxysilane,and gold nanoparticles were then immobilized on the surface to fabricate the magnetic nanocatalyst. The prepared magnetic catalyst was characterized by X-ray diffraction,transmission electron microscopy and Fourier transform infrared spectroscopy,and its catalytic performance was investigated through the reduction of p-nitrophenol. The results showed that the average diameter of magnetic nanocatalyst was about 323 nm. The reduction of p-nitrophenol was completed in 6 min under the optimal experimental conditions. The catalyst was easily recycled with a magnet, and its catalytic efficiency kept higher than 92% after 8 times of recycling use.

参考文献/References:

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备注/Memo

备注/Memo:

收稿日期:2017-10-26基金项目:武汉工程大学研究生教育创新基金(CX2016006);生物无机化学与药物湖北省重点实验室开放基金(BCMM201708)作者简介:汪苏平,硕士研究生。E-mail:wsp_job@163.com*通讯作者:吴江渝,博士,教授。E-mail:wujy@wit.edu.cn 引文格式:汪苏平,黄鑫,彭敏,等. 磁性纳米金催化剂的制备及其性能研究[J]. 武汉工程大学学报,2018,40(3):279-283.
更新日期/Last Update: 2018-06-28