Synthesis and characterization of magnetically recyclable Ag nanoparticles immobilized on Fe3O4@C nanospheres with catalytic activity

被引：40
作者：
Li, Wei-hong [1 ]
Yue, Xiu-ping [1 ]
Guo, Chang-sheng [2 ]
Lv, Jia-pei [2 ]
Liu, Si-si [2 ]
Zhang, Yuan [2 ]
Xu, Jian [2 ]
机构：
[1] Taiyuan Univ Technol, Coll Environm Sci & Engn, Taiyuan 030024, Shanxi, Peoples R China
[2] Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
来源：
APPLIED SURFACE SCIENCE | 2015年 / 335卷
基金：
中国国家自然科学基金;
关键词：
Fe3O4; Silver deposition; Nanocomposite; Catalytic activity; FACILE SYNTHESIS; NANOCOMPOSITES; ANTIBACTERIAL; REDUCTION; COMPOSITE;
D O I：
10.1016/j.apsusc.2015.01.207
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A novel approach for the synthesis of Ag-loaded Fe3O4@C nanospheres (Ag-Fe3O4@C) was successfully developed. The catalysts possessed a carbon-coated magnetic core and grew active silver nanoparticles on the outer shell using hydrazine monohydrate as the AgNO3 reductant in ethanol. The morphology, inner structure, and magnetic properties of the as-prepared composites were studied with transmission electron microscopy (TEM), X-ray powder diffraction (XRD), fourier translation infrared spectroscopy (FT-IR), and vibrating sample magnetometer (VSM) techniques. Catalytic activity was investigated by degrading rhodamine B (RhB) in the designed experiment. The obtained products were monodispersed and bifunctional with high magnetization, as well as exhibited excellent catalytic activity toward organic dye with 98% of RhB conversion within 20 min in the presence of NaBH4. The product also exhibited convenient magnetic separability and maintained high catalytic activity after six cycle runs. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：23 / 28
页数：6
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