Synthesis of magnetic graphene oxide grafted polymaleicamide dendrimer nanohybrids for adsorption of Pb(II) in aqueous solution | |
Ma, Ying-Xia; Kou, Ya-Lan; Xing, Dan; Jin, Peng-Sheng; Shao, Wen-Jie; Li, Xin; Du, Xue-Yan; La, Pei-Qing | |
2017-10-15 | |
发表期刊 | JOURNAL OF HAZARDOUS MATERIALS |
ISSN | 0304-3894 |
卷号 | 340页码:407-416 |
摘要 | In this paper, using maleic anhydride and ethylenediamine as functional monomers, graphene oxide (GO) loaded magnetic Fe3O4 nanoparticles modified by (3-Aminopropyl) triethoxysilane as support, magnetic graphene oxide grafted polymaleicamide dendrimer (GO/Fe3O4-g-PMAAM) nanohybrids were fabricated by divergent method and magnetic separation technology. The obtained samples were characterized by transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, elementary analyzer and vibrating sample magnetometer. The effects of PMAAM generations, solution pH, Pb(II) initial concentration, temperature and contact time on the adsorption property of the samples for Pb(II) in aqueous solution were studied. The results demonstrated that nitrogen content and adsorption capacity of the as-synthesized samples with amino terminal groups were all higher than their adjacent generations PMAAM with carboxyl terminal groups. Moreover, with increasing generations of PMAAM grafted on to the GO/Fe3O4, the nitrogen content and the adsorption capacity of the samples with the same terminal groups gradually increased. The maximum adsorption capacity of GO/Fe3O4-g-G3.0 for Pb(II) was 181.4 mg g(-1) at 298K. The rising of temperature was beneficial for the adsorption. The adsorption kinetics had a better agreement with pseudo-second-order equation, and equilibrium data followed the Langmuir model. (C) 2017 Elsevier B.V. All rights reserved. |
关键词 | Graphene oxide Fe3O4 nanoparticles Polymaleicamide dendrimer Adsorption Pb(II) |
DOI | 10.1016/j.jhazmat.2017.07.026 |
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 | Engineering ; Environmental Sciences & Ecology |
WOS类目 | Engineering, Environmental ; Environmental Sciences |
WOS记录号 | WOS:000409149800042 |
出版者 | ELSEVIER SCIENCE BV |
EI入藏号 | 20173003969359 |
EI主题词 | Lead compounds |
EI分类号 | 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 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/33055 |
专题 | 研究生院 材料科学与工程学院 |
通讯作者 | Ma, Ying-Xia |
作者单位 | Lanzhou Univ Technol, Sch Mat Sci & Engn, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China |
第一作者单位 | 材料科学与工程学院 |
通讯作者单位 | 材料科学与工程学院 |
第一作者的第一单位 | 材料科学与工程学院 |
推荐引用方式 GB/T 7714 | Ma, Ying-Xia,Kou, Ya-Lan,Xing, Dan,et al. Synthesis of magnetic graphene oxide grafted polymaleicamide dendrimer nanohybrids for adsorption of Pb(II) in aqueous solution[J]. JOURNAL OF HAZARDOUS MATERIALS,2017,340:407-416. |
APA | Ma, Ying-Xia.,Kou, Ya-Lan.,Xing, Dan.,Jin, Peng-Sheng.,Shao, Wen-Jie.,...&La, Pei-Qing.(2017).Synthesis of magnetic graphene oxide grafted polymaleicamide dendrimer nanohybrids for adsorption of Pb(II) in aqueous solution.JOURNAL OF HAZARDOUS MATERIALS,340,407-416. |
MLA | Ma, Ying-Xia,et al."Synthesis of magnetic graphene oxide grafted polymaleicamide dendrimer nanohybrids for adsorption of Pb(II) in aqueous solution".JOURNAL OF HAZARDOUS MATERIALS 340(2017):407-416. |
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