Solvothermal synthesis of mesoporous magnetite nanoparticles for Cr(IV) ions uptake and microwave absorption
Shen, Peng1; Zhang, Haitao1; Zhang, Suojiang1; Yuan, Pei1; Yang, Yang2; Zhang, Qiang3; Zhang, Xixiang3
2016-05-12
发表期刊JOURNAL OF NANOPARTICLE RESEARCH
ISSN1388-0764
卷号18期号:5页码:129
摘要Colloidal mesoporous magnetite nanoparticles with tunable porosity were realized by a simple and scalable solvothermal route with the aid of AOT as ligands. AOT was used to induce the anisotropic crystal growth of smaller nanocrystals and restrain their tight aggregation so as to form more mesoscale pores. Morphologies and microstructures investigation by SEM and TEM revealed that the bigger nanoparticles were composed of smaller nanocrystals with an average size of 18 nm. A possible formation mechanism was proposed for the mesoporous nanoparticles. Study of nitrogen adsorption-desorption isotherm revealed that the Brunauer-Emmett-Teller 9BET) specific surface area of mesoporous nanoparticles is up to 209 m(2)/g, resulting from the slit-shaped pores created by the aggregation of polyhedral nanocrystals. Magnetic properties study indicated that the as-prepared nanoparticles are superparamagnetic at room temperature. Optimized mesoporous magnetite nanoparticles exhibit a maximum Cr(VI) ion sorption capacity of 12.9 mmol/g, and its absorption behavior followed a Freundlich model. Microwave absorption study indicated that porous nanoparticles own higher permeability values than that of solid nanoparticles, leading to a higher dielectric loss in the frequency range of 2-18 GHz.
关键词Nanoparticle Magnetic Properties Colloidal Ion Uptake Microwave Absorption
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1007/s11051-016-3442-x
收录类别SCI
语种英语
关键词[WOS]SURFACE-AREA ; IRON-OXIDES ; REMOVAL ; FE3O4 ; COMPOSITES ; MORPHOLOGY ; RELAXATION ; CR(VI) ; WATER ; FIELD
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science
WOS类目Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
项目资助者National Natural Science Foundation of China(21271175 ; National Key Basic Research Program of China (or 973 Program)(2014CB239701) ; One Hundred Talent Program (CAS) ; Instrument and Equipment Research and Development Project(YZ201221) ; 21127011)
WOS记录号WOS:000376270600003
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/21088
专题湿法冶金清洁生产技术国家工程实验室
作者单位1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing Key Lab Ion Liquids Clean Proc, Beijing 100190, Peoples R China
2.China Bldg Mat Acad, State Key Lab Green Bldg Mat, Beijing 100024, Peoples R China
3.King Abdullah Univ Sci & Technol, Phys Sci & Engn, Jeddah 239556900, Saudi Arabia
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Shen, Peng,Zhang, Haitao,Zhang, Suojiang,et al. Solvothermal synthesis of mesoporous magnetite nanoparticles for Cr(IV) ions uptake and microwave absorption[J]. JOURNAL OF NANOPARTICLE RESEARCH,2016,18(5):129.
APA Shen, Peng.,Zhang, Haitao.,Zhang, Suojiang.,Yuan, Pei.,Yang, Yang.,...&Zhang, Xixiang.(2016).Solvothermal synthesis of mesoporous magnetite nanoparticles for Cr(IV) ions uptake and microwave absorption.JOURNAL OF NANOPARTICLE RESEARCH,18(5),129.
MLA Shen, Peng,et al."Solvothermal synthesis of mesoporous magnetite nanoparticles for Cr(IV) ions uptake and microwave absorption".JOURNAL OF NANOPARTICLE RESEARCH 18.5(2016):129.
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