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Effect of immobilized amine density on cadmium(II) adsorption capacities for ethanediamine-modified magnetic poly-(glycidyl methacrylate) microspheres
Dong, Tingting1,2; Yang, Liangrong1; Pan, Feng1; Xing, Huifang1; Wang, Li1; Yu, Jiemiao1; Qu, Hongnan1,2,3; Rong, Meng1,2; Liu, Huizhou1
2017-04-01
Source PublicationJOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
ISSN0304-8853
Volume427Pages:289-295
Abstract

A series of ethanediamine (EDA) - modified magnetic poly-(glycidyl methacrylate) (m-PGMA-EDA) microspheres with different amine density were synthesized and their cadmium saturation adsorption capacities were examined. The results showed that the cadmium saturation adsorption capacity increased with the immobilized amine density. However, they did not show strong positive linear correlation in the whole range of amine density examined. The molar ratio of amine groups to the adsorbed cadmium decreased with the increase of amine density and eventually reached a minimum value about 4. It suggested that low immobilized amine density led to low coordination efficiency of the amine. It is hypothesized that the immobilized amine groups needed to be physically close enough to form stable amine-metal complex. When the amine density reached to a critical value 1.25 m mol m(-2), stable amine-cadmium complex (4: 1 N/Cd) was proposed to form. To illustrate the coordination mechanism (structure and number) of amine and Cd, FT-IR spectra of m-PGMA-EDA and m-PGMA- EDA-Cd, and X-ray photoelectron spectroscopy (XPS) of PGMA-EDA and PGMA-EDA-Cd were examined and analyzed.

KeywordCadmium Magnetic Pgma Eda Coordination
SubtypeArticle
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1016/j.jmmm.2016.10.074
Indexed BySCI
Language英语
WOS KeywordTransfer Radical Polymerization ; Aqueous-solution ; Metal-ions ; Selective Removal ; Waste-water ; Adsorbent ; Separation ; Complexes ; Cr(Vi) ; Ethylenediamine
WOS Research AreaMaterials Science ; Physics
WOS SubjectMaterials Science, Multidisciplinary ; Physics, Condensed Matter
Funding OrganizationNational Natural Science Foundation of China(21676273) ; National Key Natural Science Foundation of China(21136009 ; National Technology Research and Development Program of China(2015CB251402) ; Youth Innovation Promotion Association, CAS(2016043) ; Li Foundation USA, Inc. ; U1507203)
WOS IDWOS:000397199400051
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/22150
Collection生化工程国家重点实验室
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China
Recommended Citation
GB/T 7714
Dong, Tingting,Yang, Liangrong,Pan, Feng,et al. Effect of immobilized amine density on cadmium(II) adsorption capacities for ethanediamine-modified magnetic poly-(glycidyl methacrylate) microspheres[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,2017,427:289-295.
APA Dong, Tingting.,Yang, Liangrong.,Pan, Feng.,Xing, Huifang.,Wang, Li.,...&Liu, Huizhou.(2017).Effect of immobilized amine density on cadmium(II) adsorption capacities for ethanediamine-modified magnetic poly-(glycidyl methacrylate) microspheres.JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,427,289-295.
MLA Dong, Tingting,et al."Effect of immobilized amine density on cadmium(II) adsorption capacities for ethanediamine-modified magnetic poly-(glycidyl methacrylate) microspheres".JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 427(2017):289-295.
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