Effect of iron oxide nanoparticles functionalization by citrate analyzed using Mossbauer spectroscopy

被引：4

作者：

Ushakov, Michael V. ^{[1
]}

Sousa, M. H. ^{[2
]}

Morais, Paulo C. ^{[3
,4
]}

Kuzmann, Erno ^{[5
]}

Semionkin, Vladimir A. ^{[1
]}

Oshtrakh, Michael I. ^{[1
]}

机构：

[1] Ural Fed Univ, Inst Phys & Technol, Ekaterinburg 620002, Russia

[2] Univ Brasilia, Fac Ceilandia, Green Nanotechnol Grp, BR-72220900 Brasilia, DF, Brazil

[3] Univ Catolica Brasilia, BR-70790160 Brasilia, DF, Brazil

[4] Univ Brasilia, Inst Phys, BR-70910900 Brasilia, DF, Brazil

[5] Eotvos Lorand Univ, Inst Chem, Lab Nucl Chem, Budapest, Hungary

来源：

HYPERFINE INTERACTIONS | 2020年 / 241卷 / 01期

关键词：

Mossbauer spectroscopy; Iron oxide nanoparticles; Surface functionalization; Hyperfine parameters;

D O I：

10.1007/s10751-020-1701-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

Comparison of the Mossbauer spectra of the as-prepared native iron oxide nanoparticles (IONs) and the citrate-functionalized IONs demonstrates differences in the spectral shapes at room temperature and variations of the Fe-57 hyperfine parameters at 80 K. The observed differences are claimed to result from capping the IONs with citrate, thus decreasing the particle-particle interaction while promoting interaction of the outer atomic layers of the IONs with the surface molecular coating.

引用

页数：9

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