Preparation of polyamidoamine dendrimers functionalized magnetic graphene oxide for the adsorption of Hg(II) in aqueous solution
Ma, Ying-Xia; Xing, Dan; Shao, Wen-Jie; Du, Xue-Yan; La, Pei-Qing
2017-11
发表期刊JOURNAL OF COLLOID AND INTERFACE SCIENCE
ISSN0021-9797
卷号505页码:352-363
摘要In this study, using graphene oxide supported Fe3O4 nanoparticles as carriers, ethylenediamine and methyl acrylate as functional monomer, different generations of polyamidoamine dendrimers functionalized magnetic graphene oxide (MGO-PAMAM), up to generation 4.0, were successfully synthesized via step by step growth chemical grafting approach and magnetic separation technology. In the process of synthesizing dendrimers, the generation of dendrimers was increased with the increasing of reaction cycles. In other words, the dendrimers generation is determined from the number of branch iterations. The obtained MGO-PAMAM were characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), elemental analysis, X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA), vibrating sample magnetometer (VSM), nitrogen adsorption/desorption isotherm and Zeta potential analysis. The adsorption properties of the synthesized products for Hg(II) in aqueous solution were investigated by batch experiments. The results showed that the MGO-PAMAM with generation 3.0 of dendrimers (MGO-PAMAM-G3.0) has the maximum adsorption capacity of 113.71 mg.g(-1). The adsorption process of MGO-PAMAM-G3.0 for Hg(II) was well described by the pseudo-second-order kinetics model and the Langmuir isotherm model. The Hg(II) adsorbed on the surface of MGO-PAMAM-G3.0 was reduced to Hg(I) in the adsorption process. In addition, the MGO-PAMAM possesse good magnetic separation performance. (C) 2017 Elsevier Inc. All rights reserved.
关键词Magnetic graphene oxide Polyamidoamine Dendrimers Adsorption Hg(II)
DOI10.1016/j.jcis.2017.05.104
收录类别SCI ; SCIE
语种英语
资助项目National Natural Science Foundation of China[51403091] ; Postdoctoral Science Foundation of China[2015M572616]
WOS研究方向Chemistry
WOS类目Chemistry, Physical
WOS记录号WOS:000410464100038
出版者ACADEMIC PRESS INC ELSEVIER SCIENCE
EI入藏号20172403754980
EI主题词Mercury compounds
EI分类号701.2 Magnetism: Basic Concepts and Phenomena - 741.3 Optical Devices and Systems - 761 Nanotechnology - 801 Chemistry - 802.2 Chemical Reactions - 802.3 Chemical Operations - 804 Chemical Products Generally - 804.2 Inorganic Compounds - 815.1.1 Organic Polymers
引用统计
被引频次:89[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符https://ir.lut.edu.cn/handle/2XXMBERH/33033
专题研究生院
材料科学与工程学院
省部共建有色金属先进加工与再利用国家重点实验室
通讯作者Ma, Ying-Xia; Du, Xue-Yan
作者单位Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Key Lab Nonferrous Met Alloys & Proc, Minist Educ,Sch Mat Sci & Engn, Lanzhou 730050, Gansu, Peoples R China
第一作者单位省部共建有色金属先进加工与再利用国家重点实验室
通讯作者单位省部共建有色金属先进加工与再利用国家重点实验室
第一作者的第一单位省部共建有色金属先进加工与再利用国家重点实验室
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Ma, Ying-Xia,Xing, Dan,Shao, Wen-Jie,et al. Preparation of polyamidoamine dendrimers functionalized magnetic graphene oxide for the adsorption of Hg(II) in aqueous solution[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2017,505:352-363.
APA Ma, Ying-Xia,Xing, Dan,Shao, Wen-Jie,Du, Xue-Yan,&La, Pei-Qing.(2017).Preparation of polyamidoamine dendrimers functionalized magnetic graphene oxide for the adsorption of Hg(II) in aqueous solution.JOURNAL OF COLLOID AND INTERFACE SCIENCE,505,352-363.
MLA Ma, Ying-Xia,et al."Preparation of polyamidoamine dendrimers functionalized magnetic graphene oxide for the adsorption of Hg(II) in aqueous solution".JOURNAL OF COLLOID AND INTERFACE SCIENCE 505(2017):352-363.
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