Preparation of a novel Fe3O4@SiO2@Ni-La-B magnetic core-shell nanocomposite for catalytic hydrogenation

被引：21
作者：
Bai, Guoyi [1 ]
Shi, Lingjuan [1 ]
Zhao, Zhen [1 ]
Wang, Yalong [1 ]
Qiu, Mande [1 ]
Dong, Huixian [1 ]
机构：
[1] Hebei Univ, Coll Chem & Environm Sci, Key Lab Chem Biol Hebei Prov, Baoding City 071002, Hebei, Peoples R China
来源：
MATERIALS LETTERS | 2013年 / 96卷
基金：
中国国家自然科学基金;
关键词：
Nanocomposites; Magnetic materials; Core-shell; Amorphous materials; Hydrogenation; MICROSPHERES; NANOPARTICLES;
D O I：
10.1016/j.matlet.2013.01.018
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A novel Fe3O4@SiO2@Ni-La-B magnetic core-shell nanocomposite was prepared by a combination of the Stober method and self-assembly. In this process, Fe3O4 nanoparticles were first coated with amorphous silica, forming Fe3O4@SiO2 core-shell structural nanocomposites. Ni2+ and La3+ were then loaded onto the surface of Fe3O4@SiO2, followed by reduction with KBH4 to assemble a layer of Ni-La-B onto the surface of Fe3O4@SiO2. The obtained Fe3O4@SiO2@Ni-La-B core-shell nanocomposite has high saturation magnetization (20.6 emu/g), compared to that of Ni-La-B (only 0.4 emu/g). This magnetic core-shell nanocomposite showed high activity and good selectivity in the catalytic hydrogenation of benzophenone to benzhydrol, and can be easily separated and recycled after reaction. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：93 / 96
页数：4
相关论文
共 16 条
[1]   Ni-La-B amorphous alloys supported on SiO2 and γ-Al2O3 for selective hydrogenation of benzophenone [J].
Bai, Guoyi ;
Niu, Libo ;
Zhao, Zhen ;
Li, Na ;
Li, Fei ;
Qiu, Mande ;
He, Fei ;
Chen, Guofeng ;
Ma, Zheng .
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2012, 363 :411-416
[2]   Liquid-phase selective hydrogenation of benzophenone over ultrasonic-assisted Ni-La-B amorphous alloy catalyst [J].
Bai, Guoyi ;
Niu, Libo ;
Qiu, Mande ;
He, Fei ;
Fan, Xinxin ;
Dou, Haiyang ;
Zhang, Xuefeng .
CATALYSIS COMMUNICATIONS, 2010, 12 (03) :212-216
[3]   The grafting and release behavior of doxorubincin from Fe3O4@SiO2 core-shell structure nanoparticles via an acid cleaving amide bond:: the potential for magnetic targeting drug delivery [J].
Chen, F. H. ;
Gao, Q. ;
Ni, J. Z. .
NANOTECHNOLOGY, 2008, 19 (16)
[4]   Superparamagnetic high-magnetization microspheres with an Fe3O4@SiO2 core and perpendicularly aligned mesoporous SiO2 shell for removal of microcystins [J].
Deng, Yonghui ;
Qi, Dawei ;
Deng, Chunhui ;
Zhang, Xiangmin ;
Zhao, Dongyuan .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (01) :28-+
[5]   Multifunctional Mesoporous Composite Microspheres with Well-Designed Nanostructure: A Highly Integrated Catalyst System [J].
Deng, Yonghui ;
Cai, Yue ;
Sun, Zhenkun ;
Liu, Jia ;
Liu, Chong ;
Wei, Jing ;
Li, Wei ;
Liu, Chang ;
Wang, Yao ;
Zhao, Dongyuan .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2010, 132 (24) :8466-8473
[6]   Catalytic conversion of methane and CO2 to synthesis gas over a La2O3-modified SiO2 supported Ni catalyst in fluidized-bed reactor [J].
Gao, Jing ;
Hou, Zhaoyin ;
Guo, Jianzhong ;
Zhu, Yinghong ;
Zheng, Xiaoming .
CATALYSIS TODAY, 2008, 131 (1-4) :278-284
[7]   Effects of nickel ethylenediamine complex on the preparation of Ni-B amorphous alloy catalyst with ultrasonic assistance [J].
Guo, Jie ;
Hou, Yongjiang ;
Yang, Cuihua ;
Wang, Yaquan ;
Wang, Lina .
MATERIALS LETTERS, 2012, 67 (01) :151-153
[8]   Core-shell Fe3O4@SiO2 nanoparticles synthesized with well-dispersed hydrophilic Fe3O4 seeds [J].
Hui, Chao ;
Shen, Chengmin ;
Tian, Jifa ;
Bao, Lihong ;
Ding, Hao ;
Li, Chen ;
Tian, Yuan ;
Shi, Xuezhao ;
Gao, Hong-Jun .
NANOSCALE, 2011, 3 (02) :701-705
[9]   Preparation and characterization of magnetic luminescent nanocomposite particles [J].
Liu, Bing ;
Xie, Wanxing ;
Wang, Deping ;
Huang, Wenhai ;
Yu, Meijuan ;
Yao, Aihua .
MATERIALS LETTERS, 2008, 62 (17-18) :3014-3017
[10]   Magnetic nanoparticles:: Synthesis, protection, functionalization, and application [J].
Lu, An-Hui ;
Salabas, E. L. ;
Schueth, Ferdi .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2007, 46 (08) :1222-1244
12