Ultrasonic assisted rapid synthesis of high uniform super-paramagnetic microspheres with core-shell structure and robust magneto-chromatic ability | |
Department | OSSO国家重点实验室 |
Zhang WY(张文妍)1; Chen, Jiahua1; Wang, Wei2,3; Lu GX(吕功煊)4![]() | |
2017 | |
Source Publication | Journal of Magnetism and Magnetic Materials
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ISSN | 0304-8853 |
Volume | 426Pages:1-10 |
Abstract | Super-paramagnetic core-shell microspheres were synthesized by ultrasonic assisted routine under low ultrasonic irradiation powers. Compared with conventional routine, ultrasonic effect could not only improve the uniformity of the core-shell structure of Fe3O4@SiO2, but shorten the synthesis time in large scale. Owing to their hydrophilicity and high surface charge, the Fe3O4@SiO2 microspheres could be dispersed well in distilled water to form homogeneous colloidal suspension. The suspensions have favorable magneto-chromatic ability that they sensitively exhibit brilliant colorful ribbons by magnetic attraction. The colorful ribbons, which distributed along the magnetic lines, make morphology of the magnetic fields become “visible” to naked eyed. Those colorful ribbons originate from strong magnetic interaction between the microspheres and magnetic fields. Furthermore, the magneto-chromatic performance is reversible as the colorful ribbons vanished rapidly with the removing of magnetic fields. The silica layer effectively enhanced the acid resistance and surface-oxidation resistance of theFe3O4@SiO2 microspheres, so they could exhibit stable magnetic nature and robust magneto-chromatic property in acid environment. |
Keyword | Ultra-rapid Composite Optical Super-paramagnetic Magneto-chromatic |
Subject Area | 物理化学与绿色催化 |
DOI | 10.1016/j.jmmm.2016.11.052 |
Funding Organization | National Natural Science Fund of China (21173242;21673262;51502143);Jiangsu Provincial Natural Science Fund for Youths (Grant No. BK20130095;BK20150919);973 Programs of Department of Sciences and Technology of China (2013CB632404);Prospective Joint Research Project of Jiangsu Province (No. 2014016);Innovation Foundation for Scientific Research (2014-jit-n-06);Key University Science Research Project of Jiangsu Province (No. 15KJB430022);Postdoctoral Science Foundation of China (146819) |
Indexed By | SCI |
If | 2.630 |
Language | 英语 |
Funding Project | 环境催化与氢能研究组 |
compositor | 第四作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/21624 |
Collection | 羰基合成与选择氧化国家重点实验室(OSSO) |
Corresponding Author | Zhang WY(张文妍) |
Affiliation | 1.Jinling Inst Technol, Coll Mat Engn, Nanjing, Jiangsu, Peoples R China 2.Nanjing Tech Univ, Jiangsu Collaborat Innovat Ctr Adv Inorgan Funct, Nanjing, Jiangsu, Peoples R China 3.Nanjing Univ Informat Sci & Technol, Sch Phys & Optoelect Engn, Nanjing, Peoples R China 4.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China 5.Nanjing Tech Univ, Coll Mat Sci & Engn, State Key Lab Mat Oriented Chem Engn, Nanjing, Jiangsu, Peoples R China |
Recommended Citation GB/T 7714 | Zhang WY,Chen, Jiahua,Wang, Wei,et al. Ultrasonic assisted rapid synthesis of high uniform super-paramagnetic microspheres with core-shell structure and robust magneto-chromatic ability[J]. Journal of Magnetism and Magnetic Materials,2017,426:1-10. |
APA | Zhang WY.,Chen, Jiahua.,Wang, Wei.,Lu GX.,Hao, Lingyun.,...&张文妍.(2017).Ultrasonic assisted rapid synthesis of high uniform super-paramagnetic microspheres with core-shell structure and robust magneto-chromatic ability.Journal of Magnetism and Magnetic Materials,426,1-10. |
MLA | Zhang WY,et al."Ultrasonic assisted rapid synthesis of high uniform super-paramagnetic microspheres with core-shell structure and robust magneto-chromatic ability".Journal of Magnetism and Magnetic Materials 426(2017):1-10. |
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