Results 1 to 10 of about 2,930 (216)

The influence of Shewanella oneidensis MR-1 on the transformation of iron oxides and phosphorus in a red soil

open access: yesSoil and Water Research, 2022
In this study, Shewanella oneidensis MR-1, an iron (Fe)-reducing bacterium, was inoculated to a red soil, which was then incubated. Soil samples were taken regularly to analyse the variation of iron oxides and phosphorus (P) fractions. The results showed
Weimin Yu   +5 more
doaj   +1 more source

DCB dissolution of iron oxides in aeolian dust deposits controlled by particle size rather than mineral species

open access: yesScientific Reports, 2022
Dithionite-citrate-bicarbonate (DCB) treatment is a classical method for removing iron oxides from soil. The DCB-induced dissolution effects on iron oxides are controversial.
Qianqian Yang   +6 more
doaj   +1 more source

Statement on the validity and robustness of information provided on irradiated iron oxides [PDF]

open access: yesEFSA Journal, 2014
Following a Rapid Alert System for Food and Feed (RASFF) notification concerning the use of an unauthorised irradiated colouring agent (brown iron oxide) as coatings of food supplements, the European Commission asked EFSA to assess the scientific ...
European Food Safety Authority   +1 more
doaj   +1 more source

Effect of soaking time of dithionite–citrate–bicarbonate solution on strength and deformation characteristics of lateritic soil

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2023
This study aimed to reveal the influence of different free-iron-oxides contents on the strength and deformation characteristics of in situ lateritic soil.
Wei Bai   +5 more
doaj   +1 more source

Accelerated dissolution of iron oxides in ice [PDF]

open access: yesAtmospheric Chemistry and Physics, 2012
Iron dissolution from mineral dusts and soil particles is vital as a source of bioavailable iron in various environmental media. In this work, the dissolution of iron oxide particles trapped in ice was investigated as a new pathway of iron supply.
D. Jeong, K. Kim, W. Choi
doaj   +1 more source

The iron-oxidizing proteobacteria [PDF]

open access: yesMicrobiology, 2011
The ‘iron bacteria’ are a collection of morphologically and phylogenetically heterogeneous prokaryotes. They include some of the first micro-organisms to be observed and described, and continue to be the subject of a considerable body of fundamental and applied microbiological research.
Sabrina, Hedrich   +2 more
openaire   +2 more sources

Synthesis and heating effect of iron/iron oxide composite and iron oxide nanoparticles [PDF]

open access: yesSPIE Proceedings, 2007
Fe/Fe oxide nanoparticles, in which the core consists of metallic Fe and the shell is composed of Fe oxides, were obtained by reduction of an aqueous solution of FeCl3 within a NaBH4 solution, or, using a water-in-oil micro-emulsion with CTAB as the surfactant.
Q, Zeng   +4 more
openaire   +2 more sources

Formation of Iron Oxides by Surface Oxidation of Iron Plate

open access: yesCroatica Chemica Acta, 2012
Oxidation of iron plates (α-phase) at high temperatures and in atmospheric conditions was monitored. The composition of oxidation products was analyzed with XRD, Raman and Mössbauer spectros-copies, whereas the morphologies of oxidation products were inspected by FE-SEM.
Marciuš, Marijan   +3 more
openaire   +7 more sources

Iron oxides in the cryoconite of glaciers on the Tibetan Plateau: abundance, speciation and implications [PDF]

open access: yesThe Cryosphere, 2018
Cryoconite is a mixture of impurities and ice visually represented by dark colors present in the ablation zone of glaciers. As an important constituent of light-absorbing impurities on the glacier surface, iron oxides influence the radiative ...
Z. Cong   +11 more
doaj   +1 more source

Synergistic Ti-Fe Oxides on Fishbone-Derived Carbon Sulfonate: Enhanced Styrene Oxidation Catalysis

open access: yesIndonesian Journal of Chemistry, 2023
Fishbone-derived carbon sulfonate, modified through incipient wetness impregnation with titanium tetraisopropoxide and iron nitrate salts, displays catalytic activity in the oxidation of styrene with hydrogen peroxide (H2O2) as an oxidant.
Mukhamad Nurhadi   +4 more
doaj   +1 more source

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