Magnetite hollow spheres: solution synthesis, phase formation and magnetic property
Source abstract
Abstract
Polycrystalline magnetite hollow spheres with diameter of about 200 nm and shell thickness of 30–60 nm were prepared via a facile solution route. For the reaction, ethylene glycol (EG) served as the reducing agent and soldium acetate played the role of precipitator. In addition, polyvinylpyrrolidone (PVP) served as a surface stabilizer. The morphologies and structures were characterized by scanning electron microscopy, transmission electron microscopy and X-ray diffraction. The intermediate products at different stages were also studied to shed light on the evolution of phase formation. It revealed that the hollow structure formed via self-assembly of nanocrystallites (about 15 nm) using sodium acetate as mild precipitator. Evidences further pointed out that the Ostwald ripening process well explained the growth mechanism of the hollow structure. Magnetization measurements showed that the coercivity of magnetite hollow spheres at low temperature is about 200 Oe and the saturation magnetization is about 83 emu g−1, roughly 85% that of the bulk phase, close to the value of its solid counterpart. In addition, a freezing transition was observed at 25 K.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Characterization and Applications of Magnetic Nanoparticles · Geomagnetism and Paleomagnetism Studies · Minerals Flotation and Separation Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (36)
Show source-provided references
1. Aldea N, Turcu R, Nan A, Craciunescu I, Pana O, Yaning X, Wu Z, Bica D, Vekas L, Matei F (2009) Investigation of nanostructured Fe3O4 polypyrrole core-shell composites by X-ray absorbtion spectroscopy and X-ray diffraction using synchrotron radiation. J Nanopart Res 11(6):1429–143910.1007/s11051-008-9536-3 ↗
2. Butter K, Philipse AP, Vroege GJ (2002) Synthesis and properties of iron ferrofluids. J Magn Magn Mater 252:1–310.1016/S0304-8853(02)00620-0 ↗
3. Cong YH, Wang GL, Xiong MH, Huang Y, Hong ZF, Wang DL, Li JJ, Li LB (2008) A facile interfacial reaction route to prepare magnetic hollow spheres with tunable shell thickness. Langmuir 24(13):6624–662910.1021/la801124z ↗
4. Dadarlat D, Neamtu C, Streza M, Turcu R, Craciunescu I, Bica D, Vekas L (2008) High accuracy photopyroelectric investigation of dynamic thermal parameters of Fe3O4 and CoFe2O4 magnetic nanofluids. J Nanopart Res 10(8):1329–133610.1007/s11051-008-9386-z ↗
5. Deng Y, Qi D, Deng C, Zhang X, Zhao D (2008) Superparamagnetic high-magnetization microspheres with an Fe3O4@SiO2 core and perpendicularly aligned mesoporous SiO2 shell for removal of microcystins. J Am Chem Soc 130(1):28–2910.1021/ja0777584 ↗
6. Doyle PS, Bibette J, Bancaud A, Viovy JL (2002) Self-assembled magnetic matrices for DNA separation chips. Science 295(5563):223710.1126/science.1068420 ↗
7. Franger S, Berthet P, Dragos O, Baddour-Hadjean R, Bonville P, Berthon J (2007) Large influence of the synthesis conditions on the physico-chemical properties of nanostructured Fe3O4. J Nanopart Res 9(3):389–40210.1007/s11051-006-9105-6 ↗
8. Ge JP, Hu YP, Zhang TR, Huynh T, Yin YD (2008) Self-assembly and field-responsive optical diffractions of superparamagnetic colloids. Langmuir 24(7):3671–368010.1021/la7039493 ↗
9. Guo L, Liang F, Wen XG, Yang SH, He L, Zheng WZ, Chen CP, Zhong QP (2007) Uniform magnetic chains of hollow cobalt mesospheres from one-pot synthesis and their assembly in solution. Adv Funct Mater 17(3):425–43010.1002/adfm.200600415 ↗
10. Hong RY, Pan TT, Li HZ (2006) Microwave synthesis of magnetic Fe3O4 nanoparticles used as a precursor of nanocomposites and ferrofluids. J Magn Magn Mater 303:60–6810.1016/j.jmmm.2005.10.230 ↗
11. Huang J, Chen WM, Zhao W, Li YQ, Li XG, Chen CP (2009) One-dimensional chainlike arrays of Fe3O4 hollow nanospheres synthesized by aging iron nanoparticles in aqueous solution. J Phys Chem C 113(28):12067–1207110.1021/jp810662j ↗
12. Hung Y, Hsiao JK, Yao M, Chung TH, Lin YS, Wu SH, Hsu SC, Liu HM, Mou CY, Yang CS, Huang DM, Chen YC (2007) Bifunctional magnetic silica nanoparticles for highly efficient human stem cell labeling. Nano Lett 7(1):149–15410.1021/nl0624263 ↗
13. Jia BP, Gao L (2008) Morphological transformation of Fe3O4 spherical aggregates from solid to hollow and their self-assembly under an external magnetic field. J Phys Chem C 112(3):666–67110.1021/jp0763477 ↗
14. Karmakar S, Chakravorty A (1996) Carboxyl-bonded low-spin iron(III) chemistry of a family of coordination type cis-FeN4O2. Inorg Chem 35(7):1935–193910.1021/ic950976q ↗
15. Kovalenko MV, Bodnarchuk MI, Lechner RT, Hesser G, Schaffler F, Heiss W (2007) Fatty acid salts as stabilizers in size- and shape-controlled nanocrystal synthesis: the case of inverse spinel iron oxide. J Am Chem Soc 129(20):6352–635310.1021/ja0692478 ↗
16. Li XH, Zhang DH, Chen JS (2006) Synthesis of amphiphilic superparamagnetic ferrite/block copolymer hollow submicrospheres. J Am Chem Soc 128(26):8382–838310.1021/ja061460g ↗
17. Ling F, Lei J, Mai ZH, Zhu DB (2004) Polymer-controlled synthesis of Fe3O4 single-crystal nanorods. J Colloid Interf Sci 278(2):372–37510.1016/j.jcis.2004.06.019 ↗
18. Liu SH, Xing RM, Lu F, Rana RK, Zhu JJ (2009) One-pot template-free fabrication of hollow magnetite nanospheres and their application as potential drug carriers. J Phys Chem C 113(50):21042–2104710.1021/jp907296n ↗
19. Lou XW, Wang Y, Yuan CL, Lee JY, Archer LA (2006) Template-free synthesis of SnO2 hollow nanostructures with high lithium storage capacity. Adv Mater 18(17):2325–232910.1002/adma.200600733 ↗
20. Oliveira LCA, Petkowicz DI, Smaniotto A, Pergher SBC (2004) Magnetic zeolites: a new adsorbent for removal of metallic contaminants from water. Water Res 38(17):3699–370410.1016/j.watres.2004.06.008 ↗
21. Ostwald W (1900) On the assumed isomerism of red and yellow mercury oxide and the surface-tension of solid bodies. Z Phys Chem-Stoch Ve 34(4):495–50310.1515/zpch-1900-3431 ↗
22. Ottaviano L, Kwoka M, Bisti F, Parisse P, Grossi V, Santucci S, Szuber J (2009) Local surface morphology and chemistry of SnO2 thin films deposited by rheotaxial growth and thermal oxidation method for gas sensor application. Thin Solid Films 517(22):6161–616910.1016/j.tsf.2009.04.011 ↗
23. Puntes VF, Krishnan KM, Alivisatos AP (2001) Colloidal nanocrystal shape and size control: the case of cobalt. Science 291(5511):2115–211710.1126/science.1057553 ↗
24. Raj K, Moskowit B, Casciari R (1995) Advances in ferrofluid technology. J Magn Magn Mater 149:174–18010.1016/0304-8853(95)00365-7 ↗
25. Sun YG, Xia YN (2002) Shape-controlled synthesis of gold and silver nanoparticles. Science 298(5601):2176–217910.1126/science.1077229 ↗
26. Teo JJ, Chang Y, Zeng HC (2006) Fabrications of hollow nanocubes of Cu2O and Cu via reductive self-assembly of CuO nanocrystals. Langmuir 22(17):7369–737710.1021/la060439q ↗
27. Wang H, Zhu T, Zhao K, Wang WN, Wang CS, Wang YJ, Zhan WS (2004) Surface spin glass and exchange bias in Fe3O4 nanoparticles compacted under high pressure. Phys Rev B 70(9):09240910.1103/PhysRevB.70.092409 ↗
28. Wang RM, Chen YF, Fu YY, Zhang H, Kisielowski C (2005) Bicrystalline hematite nanowires. J Phys Chem B 109(25):12245–1224910.1021/jp051197q ↗
29. Wang N, Guo L, He L, Cao X, Chen CP, Wang RM, Yang SH (2007) Facile synthesis of monodisperse Mn3O4 tetragonal nanoparticles and their large-scale assembly into highly regular walls by a simple solution route. Small 3(4):606–61010.1002/smll.200600283 ↗
30. Wang DB, Song CX, Zhao YH, Yang ML (2008a) Synthesis and characterization of monodisperse iron oxides microspheres. J Phys Chem C 112(33):12710–1271510.1021/jp8031644 ↗
31. Wang N, Cao X, Kong DS, Chen WM, Guo L, Chen CP (2008b) Nickel chains assembled by hollow microspheres and their magnetic properties. J Phys Chem C 112(17):6613–661910.1021/jp710850n ↗
32. Zeng H, Li J, Liu JP, Wang ZL, Sun SH (2002) Exchange-coupled nanocomposite magnets by nanoparticle self-assembly. Nature 420(6914):395–39810.1038/nature01208 ↗
33. Zhang LY, Zhang YF (2009) Fabrication and magnetic properties of Fe3O4 nanowire arrays in different diameters. J Magn Magn Mater 321(5):L15–L2010.1016/j.jmmm.2008.09.036 ↗
34. Zhang WM, Wu XL, Hu JS, Guo YG, Wan LJ (2008) Carbon coated Fe3O4 nanospindles as a superior anode material for lithium-ion batteries. Adv Funct Mater 18(24):3941–394610.1002/adfm.200801386 ↗
35. Zhang GX, Liu YB, Zhang CF, Hu WQ, Xu WB, Li Z, Liang S, Cao JQ, Wang YX (2009) Aqueous immune magnetite nanoparticles for immunoassay. J Nanopart Res 11(2):441–44810.1007/s11051-008-9432-x ↗
36. Zhong LS, Hu JS, Liang HP, Cao AM, Song WG, Wan LJ (2006) Self-assembled 3D flowerlike iron oxide nanostructures and their application in water treatment. Adv Mater 18(18):242610.1002/adma.200600504 ↗