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Formation of Fe(0)-nanoparticles via reduction of Fe(II) compounds by amino acids and their subsequent oxidation to iron oxides
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نویسنده
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klačanová k. ,fodran p. ,šimon p. ,rapta p. ,boča r. ,jorík v. ,miglierini m. ,kolek e. ,čaplovič l.
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منبع
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journal of chemistry - 2013 - دوره : 2013 - شماره : 0
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چکیده
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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°c,and the optimum ph was between 9.5 and 9.7. the metal iron 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 iron 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,mössbauer spectroscopy,magnetometry,thermogravimetry,and gc/ms. © 2013 k. klaanová et al.
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آدرس
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department of nutrition and food assessment,institute of biochemistry,nutrition and health protection,slovak university of technology,radlinského 9, Slovakia, flop inc.,mandová 37, Slovakia, department of physical chemistry,institute of physical chemistry and chemical physics,slovak university of technology,radlinského 9, Slovakia, department of physical chemistry,institute of physical chemistry and chemical physics,slovak university of technology,radlinského 9, Slovakia, department of inorganic chemistry,institute of inorganic chemistry,technology and materials,slovak university of technology,radlinského 9, Slovakia, department of inorganic chemistry,institute of inorganic chemistry,technology and materials,slovak university of technology,radlinského 9, Slovakia, department of nuclear physics and technology,institute of nuclear and physical engineering,slovak university of technology,ilkoviova 3, Slovakia, food research institute,priemyselná 4, Slovakia, institute of materials science,faculty of materials science and technology,slovak university of technology,paulínska 16, Slovakia
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Authors
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