Magnetic graphene oxide grafted with different hydrophobic chain lengths low-generation polyamidoamine dendrimers for adsorption of Pb(II) and Hg(II) in aqueous solution

doi:10.1002/pc.25122

	Magnetic graphene oxide grafted with different hydrophobic chain lengths low-generation polyamidoamine dendrimers for adsorption of Pb(II) and Hg(II) in aqueous solution
	Ma, Ying-Xia; Shao, Wen-Jie; Jin, Peng-Sheng; Kou, Ya-Lan; Li, Xin
刊名	Polymer Composites
	2019-03-01
卷号	40 期号:S2 页码:E1685-E1696
关键词	Addition reactions Adsorption isotherms Chain length Condensation reactions Dendrimers Fourier transform infrared spectroscopy Gas adsorption Grafting (chemical) Graphene Heavy metals Hydrophobicity Lead compounds Magnetism Metal ions Plastic products Transmission electron microscopy X ray photoelectron spectroscopy Adsorption capacities Adsorption properties Hydrophobic chain lengths Langmuir isotherm models Nitrogen adsorption Polyamidoamine dendrimers Pseudo-second-order kinetic models Vibrating sample magnetometer
ISSN号	02728397
DOI	10.1002/pc.25122
英文摘要	In this study, using hexamethylenediamine (HMD)-modified magnetic graphene oxide (HMGO-NH2) as carrier, HMD and methyl acrylate as function monomers, MGO grafted with longer hydrophobic chain length low-generation HMD type polyamidoamine dendrimers (HMGO-PAMAM-G1.0) was prepared by Michael addition and amidation condensation reaction. The obtained HMGO-PAMAM-G1.0 sample was characterized by transmission electron microscope, X-ray diffraction, Fourier transform infrared spectroscopy, nitrogen adsorption/desorption isotherms, thermal properties analysis, vibrating sample magnetometer, and X-ray photoelectron spectroscopy analysis. The adsorption properties for Pb(II) and Hg(II) heavy metal ions of HMGO-PAMAM-G1.0 and the magnetic graphene oxide grafted with shorter hydrophobic chain length low-generation ethylenediamine type polyamidoamine dendrimers (MGO-PAMAM-G1.0) reported in our previous work were explored. The results showed that the HMGO-PAMAM-G1.0 with longer hydrophobic chain length had higher adsorption capacity for Pb(II) and Hg(II) than MGO-PAMAM-G1.0 at the higher concentrations. The adsorption process of HMGO-PAMAM-G1.0 and MGO-PAMAM-G1.0 for Pb(II) and Hg(II) was well in agreement with pseudo-second-order kinetic model and the Langmuir isotherm model. The Pb(II) was only adsorbed on the sample, while the Hg(II) was partially reduced to Hg(I) in the adsorption process. POLYM. COMPOS., 40:E1685–E1696, 2019. © 2018 Society of Plastics Engineers. © 2018 Society of Plastics Engineers
WOS研究方向	Materials Science ; Polymer Science
语种	英语
出版者	John Wiley and Sons Inc.
WOS记录号	WOS:000482171700072
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/113942]
专题	材料科学与工程学院
作者单位	State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, School of Materials Science & Engineering, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Ma, Ying-Xia,Shao, Wen-Jie,Jin, Peng-Sheng,et al. Magnetic graphene oxide grafted with different hydrophobic chain lengths low-generation polyamidoamine dendrimers for adsorption of Pb(II) and Hg(II) in aqueous solution[J]. Polymer Composites,2019,40(S2):E1685-E1696.
APA	Ma, Ying-Xia,Shao, Wen-Jie,Jin, Peng-Sheng,Kou, Ya-Lan,&Li, Xin.(2019).Magnetic graphene oxide grafted with different hydrophobic chain lengths low-generation polyamidoamine dendrimers for adsorption of Pb(II) and Hg(II) in aqueous solution.Polymer Composites,40(S2),E1685-E1696.
MLA	Ma, Ying-Xia,et al."Magnetic graphene oxide grafted with different hydrophobic chain lengths low-generation polyamidoamine dendrimers for adsorption of Pb(II) and Hg(II) in aqueous solution".Polymer Composites 40.S2(2019):E1685-E1696.