Formation of Fe(0)-Nanoparticles via Reduction of Fe(II) Compounds by Amino Acids and Their Subsequent Oxidation to Iron Oxides

被引：48
|
作者：
Klacanova, K. [1 ]
Fodran, P. [2 ]
Simon, P. [3 ]
Rapta, P. [3 ]
Boca, R. [4 ]
Jorik, V. [4 ]
Miglierini, M. [5 ]
Kolek, E. [6 ]
Caplovic, L'. [7 ]
机构：
[1] Slovak Univ Technol Bratislava, Fac Chem & Food Technol, Inst Biochem Nutr & Hlth Protect, Dept Nutr & Food Assessment, Bratislava 81237, Slovakia
[2] FLOP Inc, Bratislava 85110, Slovakia
[3] Slovak Univ Technol Bratislava, Fac Chem & Food Technol, Inst Phys Chem & Chem Phys, Dept Phys Chem, Bratislava 81237, Slovakia
[4] Slovak Univ Technol Bratislava, Fac Chem & Food Technol, Inst Inorgan Chem Technol & Mat, Dept Inorgan Chem, Bratislava 81237, Slovakia
[5] Slovak Univ Technol Bratislava, Fac Elect Engn & Informat Technol, Inst Nucl & Phys Engn, Dept Nucl Phys & Technol, Bratislava 81219, Slovakia
[6] Food Res Inst, Bratislava 82475, Slovakia
[7] Slovak Univ Technol, Fac Mat Sci & Technol, Inst Mat Sci, Trnava 91724, Slovakia
来源：
JOURNAL OF CHEMISTRY | 2013年 / 2013卷
关键词：
NANOPARTICLES;
D O I：
10.1155/2013/961629
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Iron nanoparticles were prepared by the reduction of central Fe(II) ion in the coordination compounds with amino acid ligands. The anion of the amino acid used as a ligand acted as the reducing agent. Conditions for the reduction were very mild; the temperature did not exceed 52 degrees C, and the optimum pH was between 9.5 and 9.7. The metal ion precipitated as a mirror on the flask or as a colloid in water. Identification of the product was carried out by measuring UV/VIS spectra of the iron nanoparticles in water. The ion nanoparticles were oxidized by oxygen yielding a mixture of iron oxides. Oxidation of Fe(0) to Fe(II) took several seconds under air. The size and properties of iron oxide nanoparticles were studied by UV/VIS, TEM investigation, RTG diffractometry, Mossbauer spectroscopy, magnetometry, thermogravimetry, and GC/MS.
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页数：10
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