The hydrated ferric oxides
نویسندگان
چکیده
منابع مشابه
Abstract No. pan0505 Sorption of Heavy Metal Contaminants onto Hydrated Ferric Oxides: Mechanistic Modeling using X-ray Absorption Spectroscopy
No. pan0505 Sorption of Heavy Metal Contaminants onto Hydrated Ferric Oxides: Mechanistic Modeling using X-ray Absorption Spectroscopy P. Trivedi, D. Sparks (U. Delaware) and K. Pandya (NRL) Beamline(s): X11A Introduction: Iron oxides are ubiquitous in soils and aquatic sediments as discrete particles or coatings on other mineral and organic materials. They play a significant role in controllin...
متن کاملUranium extraction from laboratory-synthesized, uranium-doped hydrous ferric oxides.
The extractability of uranium (U) from synthetic uranium-hydrous ferric oxide (HFO) coprecipitates has been shown to decrease as a function of mineral ripening, consistent with the hypothesis that the ripening process will decrease uranium lability. To evaluate this process, three HFO suspensions were coprecipitated with uranyl (UO2(2+)) and maintained at pH 7.0 +/- 0.1. Uranyl was added to the...
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Using X-ray powder diffraction and high resolution electron microscopy the peculiarities of the structural arrangement of y-femc oxide microcrystals prepared with the thermal treatment of acircular magnetite and plasmochemist~y were studied. Both samples were found to have a complete structural equivalence: distortion of the basic spinel-like unit cell is not observed, whereas ordered distribut...
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Calcium-Silicate-Hydrate (C–S-–H) is a structurally complex material that is the primary binding phase of all Portland cement concrete materials. C–S-–H is typically considered as an assemblage of discrete nanoscale particles whose interactions are governed by nanoscale friction and interfacial cohesion. Despite the critical role of interparticle forces on mechanics of granular materials, such ...
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This article describes the formation of reactive oxygen species as a result of the oxidation of dissolved sulfide by Fe(III)-containing sediments suspended in oxygenated seawater over the pH range 7.00 and 8.25. Sediment samples were obtained from across the coastal littoral zone in South Carolina, US, at locations from the beach edge to the forested edge of a Spartina dominated estuarine salt ...
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ژورنال
عنوان ژورنال: American Journal of Science
سال: 1919
ISSN: 0002-9599
DOI: 10.2475/ajs.s4-47.281.311