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Microwave-assisted synthesis of magnetic Fe3O4-mesoporous magnesium silicate core-shell composites for the removal of heavy metal ions

文献类型：期刊论文

作者Zhao, Zhengfu1; Zhang, Xian1; Zhou, Hongjian1; Liu, Gang2; Kong, Mingguang1; Wang, Guozhong1
刊名MICROPOROUS AND MESOPOROUS MATERIALS
出版日期2017-04-01
卷号242期号:无页码:50-58
关键词Mesoporous Core-shell Nanostructures Microwave-assisted Toxic Metal Ions Competitive Adsorption Magnetic Separation
DOI10.1016/j.micromeso.2017.01.006
文献子类Article
英文摘要An ultrafast and facile microwave assisted hydrothermal approach was applied to synthesize magnetic Fe3O4-mesoporous magnesium silicate (FMMS) core-shell composites for effective removal of Cu2+, Cd2+ and Pb2+ from aqueous solutions. The FMMS composites have mesoporous magnesium silicate shells encapsulated Fe3O4 spheres core structures, and the mesoporous shell assembled by a large number of intercrossed nanosheets with a diameter of 4.0 nm pores, thus exhibited the excellent capability to remove Pb2+ (223.2 mg/g) and Cu2+ (53.5 mg/g) ions from aqueous solutions. The superior removal capacity of the FMMS composites can be ascribed to its mesoporous structures with abundant adsorption active sites. The competitive adsorption studies showed that the adsorbent affinity order of three metal ions by FMMS composites is Cu2+>Pb2+>Cd2+. It is noteworthy that the heavy metal ions could not only adsorb on the surface of FMMS composites, but also intercalate into the intercrossed nanosheets of mesoporous magnesium silicate shell, which reveals the synergistic effect of the electrostatic attraction, surface complexation and ion exchange coupled with the adsorption bonding with surface hydroxyl groups. Furthermore, the FMMS composites exhibited excellent sorption-regeneration performance, which can be easily separated and recovered by external magnet. All results demonstrated that the magnetic FMMS core-shell composite was a promising sorbent material for the preconcentration and separation of heavy metal ions from the waste water. (C) 2017 Elsevier Inc. All rights reserved.
WOS关键词MULTIWALLED CARBON NANOTUBES ; AQUEOUS-SOLUTION ; WASTE-WATER ; COMPETITIVE ADSORPTION ; FE3O4 NANOPARTICLES ; EFFICIENT REMOVAL ; METHYLENE-BLUE ; PB2+ ; MICROSPHERES ; SEPARATION
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science
语种英语
WOS记录号WOS:000397370300006
资助机构National Basic Research Program of China(2013CB934302) ; National Basic Research Program of China(2013CB934302) ; National Basic Research Program of China(2013CB934302) ; National Basic Research Program of China(2013CB934302) ; Natural Science Foundation of China(51472246 ; Natural Science Foundation of China(51472246 ; Natural Science Foundation of China(51472246 ; Natural Science Foundation of China(51472246 ; Anhui Provincial Natural Science Foundation of China(1408085MB39 ; Anhui Provincial Natural Science Foundation of China(1408085MB39 ; Anhui Provincial Natural Science Foundation of China(1408085MB39 ; Anhui Provincial Natural Science Foundation of China(1408085MB39 ; CAS Key Technology Talent Program and CAS/SAFEA International Partnership Program for Creative Research Teams of Chinese Academy of Sciences, China ; CAS Key Technology Talent Program and CAS/SAFEA International Partnership Program for Creative Research Teams of Chinese Academy of Sciences, China ; CAS Key Technology Talent Program and CAS/SAFEA International Partnership Program for Creative Research Teams of Chinese Academy of Sciences, China ; CAS Key Technology Talent Program and CAS/SAFEA International Partnership Program for Creative Research Teams of Chinese Academy of Sciences, China ; 21177132) ; 21177132) ; 21177132) ; 21177132) ; 1608085QE89) ; 1608085QE89) ; 1608085QE89) ; 1608085QE89) ; National Basic Research Program of China(2013CB934302) ; National Basic Research Program of China(2013CB934302) ; National Basic Research Program of China(2013CB934302) ; National Basic Research Program of China(2013CB934302) ; Natural Science Foundation of China(51472246 ; Natural Science Foundation of China(51472246 ; Natural Science Foundation of China(51472246 ; Natural Science Foundation of China(51472246 ; Anhui Provincial Natural Science Foundation of China(1408085MB39 ; Anhui Provincial Natural Science Foundation of China(1408085MB39 ; Anhui Provincial Natural Science Foundation of China(1408085MB39 ; Anhui Provincial Natural Science Foundation of China(1408085MB39 ; CAS Key Technology Talent Program and CAS/SAFEA International Partnership Program for Creative Research Teams of Chinese Academy of Sciences, China ; CAS Key Technology Talent Program and CAS/SAFEA International Partnership Program for Creative Research Teams of Chinese Academy of Sciences, China ; CAS Key Technology Talent Program and CAS/SAFEA International Partnership Program for Creative Research Teams of Chinese Academy of Sciences, China ; CAS Key Technology Talent Program and CAS/SAFEA International Partnership Program for Creative Research Teams of Chinese Academy of Sciences, China ; 21177132) ; 21177132) ; 21177132) ; 21177132) ; 1608085QE89) ; 1608085QE89) ; 1608085QE89) ; 1608085QE89)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/32947]  
专题合肥物质科学研究院_中科院固体物理研究所
作者单位1.Chinese Acad Sci, Anhui Key Lab Nanomat & Nanotechnol, Ctr Environm & Energy Nanomat, Inst Solid State Phys,Key Lab Mat Phys, Hefei 230031, Peoples R China
2.Chinese Acad Sci, Inst Appl Technol, Hefei Inst Phys Sci, Hefei 230031, Peoples R China
推荐引用方式
GB/T 7714		 Zhao, Zhengfu,Zhang, Xian,Zhou, Hongjian,et al. Microwave-assisted synthesis of magnetic Fe3O4-mesoporous magnesium silicate core-shell composites for the removal of heavy metal ions[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2017,242(无):50-58.
APA Zhao, Zhengfu,Zhang, Xian,Zhou, Hongjian,Liu, Gang,Kong, Mingguang,&Wang, Guozhong.(2017).Microwave-assisted synthesis of magnetic Fe3O4-mesoporous magnesium silicate core-shell composites for the removal of heavy metal ions.MICROPOROUS AND MESOPOROUS MATERIALS,242(无),50-58.
MLA Zhao, Zhengfu,et al."Microwave-assisted synthesis of magnetic Fe3O4-mesoporous magnesium silicate core-shell composites for the removal of heavy metal ions".MICROPOROUS AND MESOPOROUS MATERIALS 242.无(2017):50-58.

入库方式： OAI收割

来源：合肥物质科学研究院

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