Sedimentation of Fe2O3 and metallic iron nanoparticles exhibiting Brownian movement

• Autorzy: Fornal P. , Stanek J.
• Konferencja: Proceedings of the 9th All - Polish Seminar on Mössbauer Spectroscopy OSSM'2012, 10-13 June 2012, Lublin - Kazimierz Dolny, Poland
• Języki publikacji: EN

Abstrakty

EN

Sedimentation of nanoparticles in water solutions was studied in situ by transmission Mössbauer spectroscopy in horizontal and vertical geometry. The studied specimens were Fe2O3 of a commercial pigment and metallic iron nanoparticles in slurry used in a water purification technology. The sedimentation is selective and leads to the gradual removing of the bigger particles from a solution. The iron nanoparticles in the solution are relatively chemically stable until, due to the drying, the sediment becomes exposed to the air.

Słowa kluczowe

EN

Brownian movement; nanoparticles; sedimentation

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2013
• Tom: Vol. 58, No. 1
• Strony: 39--42
• Opis fizyczny: Bibliogr. 7 poz., rys.

Twórcy

autor

Fornal P.

autor

Stanek J.

• Cracow University of Technology, Institute of Physics, 1 Podchorążych Str., 30-083 Kraków, Poland, Tel.: [phone], Fax: [phone],

Bibliografia

• 1. Bhide VG, Sundaram R, Bhasin HC, Bonchev T (1971) Effect of Brownian motion on the Mössbauer line shape. Phys Rev B 3:673–678
• 2. Fornal P, Stanek J (2008) Mobility of hematite submicron particles in water solutions of sugar. Acta Phys Pol A 114:1667–1673
• 3. Fornal P, Stanek J (2011) Brownian movement of inorganic nanoparticles in sediments. Acta Phys Pol A 119:12–14
• 4. Fornal P, Stanek J, Wilk A (2008) Mobility of microparticles in protein gel. Hyperfine Interact 185:81–86
• 5. Shozugawa K,Kuno A, Miura H, Matsuo M (2009) 57Fe Mössbauer study of specific iron species in the Antarctic Ocean sediments. J Nucl Radiochem Sci 10:13–17
• 6. Stanek J, Fornal P (2009) Mobility of inorganic nanoparticles in soft matter. Hyperfine Interact 190:75–85
• 7.Van Der Zee C, Slomp CP, Rancourt DG, De Lange GJ, Van Raaphorst W (2005) A Mössbauer spectroscopic study of the iron redox transition in eastern Mediterranean sediments. Geochim Cosmochim Acta 69:441–453