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Superdispersible PVP-Coated Fe3O4 Nanocrystals Prepared by a "One-Pot" Reaction
Lu, Xianyong; Niu, Mu; Qiao, Ruirui; Gao, Mingyuan
2008-11-20
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY B
ISSN1520-6106
Volume112Issue:46Pages:14390-14394
AbstractPoly(N-vinyl-2-pyrrolidone) (PVP)-coated Fe3O4 nanocrystals were prepared by a "one-pot" synthesis through the pyrolysis of ferric triacetylacetonate (Fe(acac)(3)) in N-vinyl-2-pyrrolidone (NVP). The polymerization of NVP was followed by measuring the shear viscosity of the reaction mixture. The PVP molecules formed in the reaction mixture was investigated by gel permeation chromatography. As the resultant Fe3O4 nanocrystals presented superdispersibility in 10 different types of organic solvents and aqueous solutions with different pH, including 0.01 M phosphate-buffered saline buffer, their hydrodynamic properties in both organic and aqueous systems were investigated by dynamic light-scattering. The results indicated that the PVP-coated Fe3O4 nanocrystals can completely be dispersed forming stable colloidal solutions in both organic solvents and water. Fourier transform infrared spectroscopy results suggested that PVP interacted with Fe3O4 via its carbonyl groups. Further surface analysis by X-ray photoelectron spectroscopy revealed that there were both coordinating and noncoordinating segments of PVP on the particle surfaced the molar ratio between them was of 1:2.6.
DOI10.1021/jp8025072
Indexed BySCI
Language英语
WOS IDWOS:000260923400006
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:90[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/63250
Collection中国科学院化学研究所
Corresponding AuthorGao, Mingyuan
AffiliationChinese Acad Sci, Inst Chem, Key Lab Colloid Interface Sci & Chem Thermodynam, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Lu, Xianyong,Niu, Mu,Qiao, Ruirui,et al. Superdispersible PVP-Coated Fe3O4 Nanocrystals Prepared by a "One-Pot" Reaction[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2008,112(46):14390-14394.
APA Lu, Xianyong,Niu, Mu,Qiao, Ruirui,&Gao, Mingyuan.(2008).Superdispersible PVP-Coated Fe3O4 Nanocrystals Prepared by a "One-Pot" Reaction.JOURNAL OF PHYSICAL CHEMISTRY B,112(46),14390-14394.
MLA Lu, Xianyong,et al."Superdispersible PVP-Coated Fe3O4 Nanocrystals Prepared by a "One-Pot" Reaction".JOURNAL OF PHYSICAL CHEMISTRY B 112.46(2008):14390-14394.
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