Preparation and characterization of graphite nanosheets decorated with Fe3O4 nanoparticles used in the immobilization of glucoamylase

doi:10.1016/j.carbon.2012.02.080

	Preparation and characterization of graphite nanosheets decorated with Fe3O4 nanoparticles used in the immobilization of glucoamylase
	Ma, Ying-Xia 1,2; Li, Yan-Feng 1; Zhao, Guang-Hui 1; Yang, Liu-Qing 1; Wang, Jian-Zhi 1; Shan, Xin 1; Yan, Xu 1
刊名	CARBON
	2012-07
卷号	50 期号:8 页码:2976-2986
关键词	Fourier transform infrared spectroscopy Gas adsorption Graphite High resolution transmission electron microscopy Hybrid materials Inverse problems Magnetic materials Magnetism Magnetite Nanoparticles Nanosheets Reusability Synthesis (chemical) Thermogravimetric analysis X ray photoelectron spectroscopy 3-aminopropyltriethoxysilane Amino functionalization Coprecipitation method Fe3O4 nanoparticles Graphite nano-sheets Large specific surface areas Magnetic sensitivity Nitrogen adsorption
ISSN号	0008-6223
DOI	10.1016/j.carbon.2012.02.080
英文摘要	Graphite nanosheets (GNSs) decorated with Fe3O4 nanoparticles were synthesized by an inverse coprecipitation method. The Fe3O4-GNS hybrid material was characterized by transmission electron microscopy, Fourier transform infrared spectroscopy, Raman spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy, nitrogen adsorption/desorption isotherms, thermogravimetry and magnetic hysteresis studies. We demonstrated that the Fe3O4-GNS hybrid material had a flexible interleaved structure, a large specific surface area, high magnetic sensitivity, and good thermal stability. The amino functionalization of the material with 3-aminopropyltriethoxysilane produced a magnetic material that was used in the immobilization of glucoamylase by using glutaraldehyde as a coupling reagent. The results showed that the immobilized glucoamylase exhibited excellent activity and reusability. (C) 2012 Elsevier Ltd. All rights reserved.
资助项目	Opening Foundation of State Key Laboratory of Applied Organic Chemistry[SKLAOC-2009-35]
WOS研究方向	Chemistry ; Materials Science
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000303616700036
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/34891]
专题	材料科学与工程学院
通讯作者	Li, Yan-Feng
作者单位	1.Lanzhou Univ, Inst Biochem Engn & Environm Technol, Coll Chem & Chem Engn, State Key Lab Appl Organ Chem,Key Lab Nonferrous, Lanzhou 730000, Peoples R China 2.Lanzhou Univ Technol, Sch Mat Sci & Engn, State Key Lab Gansu Adv Nonferrous Met Mat, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Ma, Ying-Xia,Li, Yan-Feng,Zhao, Guang-Hui,et al. Preparation and characterization of graphite nanosheets decorated with Fe3O4 nanoparticles used in the immobilization of glucoamylase[J]. CARBON,2012,50(8):2976-2986.
APA	Ma, Ying-Xia.,Li, Yan-Feng.,Zhao, Guang-Hui.,Yang, Liu-Qing.,Wang, Jian-Zhi.,...&Yan, Xu.(2012).Preparation and characterization of graphite nanosheets decorated with Fe3O4 nanoparticles used in the immobilization of glucoamylase.CARBON,50(8),2976-2986.
MLA	Ma, Ying-Xia,et al."Preparation and characterization of graphite nanosheets decorated with Fe3O4 nanoparticles used in the immobilization of glucoamylase".CARBON 50.8(2012):2976-2986.