Changes in the structure of birnessite during siderophore-promoted dissolution: A time-resolved synchrotron X-ray diffraction study
Sign Up to like & getrecommendations! Published in 2018 at "Chemical Geology"
DOI: 10.1016/j.chemgeo.2017.11.003
Abstract: Abstract We used time-resolved synchrotron X-ray diffraction to follow the complete dissolution of synthetic triclinic Na-birnessite as promoted by the trihydroxamate siderophore desferrioxamine B (DFOB). Many microorganisms employ siderophores to increase the availability of Fe,… read more here.
Keywords: synchrotron ray; resolved synchrotron; time resolved; structure ... See more keywords
Adsorption and oxidation of 3-nitro-1,2,4-triazole-5-one (NTO) and its transformation product (3-amino-1,2,4-triazole-5-one, ATO) at ferrihydrite and birnessite surfaces.
Sign Up to like & getrecommendations! Published in 2018 at "Environmental pollution"
DOI: 10.1016/j.envpol.2018.04.034
Abstract: The emerging insensitive munitions compound (IMC) 3-nitro-1,2,4-triazole-5-one (NTO) is currently being used to replace conventional explosives such as 1,3,5-trinitro-1,3,5-triazacyclohexane (RDX), but the environmental fate of this increasingly widespread IMC remains poorly understood. Upon release from… read more here.
Keywords: triazole one; adsorption; oxidation; ato ... See more keywords
Effects of metal cations on coupled birnessite structural transformation and natural organic matter adsorption and oxidation
Sign Up to like & getrecommendations! Published in 2019 at "Geochimica et Cosmochimica Acta"
DOI: 10.1016/j.gca.2019.01.035
Abstract: Abstract Birnessite, a layered manganese (Mn) oxide, possesses extraordinary metal adsorption and oxidation activity, and thus imposes impacts on many biogeochemical processes. The reactivity of birnessite strongly relies on its Mn oxidation state composition (the… read more here.
Keywords: oxidation; adsorption; transformation; birnessite ... See more keywords
Oxidation of arsenite by self-regenerative bioactive birnessite in a continuous flow column reactor
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DOI: 10.1016/j.hydromet.2020.105416
Abstract: Abstract Naturally occurring manganese (Mn) oxide, biogenic birnessite ((Na, Ca, K)0.5 MnIII, IV2O4ยท1.5 H2O), is involved in the geochemical cycling of variety of metals including arsenic (As). This natural reaction was exploited in this study… read more here.
Keywords: iii oxidation; bioactive birnessite; column; oxidation ... See more keywords