Articles with "abiotic reduction" as a keyword



Selenite Stable Isotope Fractionation during Abiotic Reduction by Sodium Sulfide.

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Published in 2024 at "Environmental science & technology"

DOI: 10.1021/acs.est.4c03607

Abstract: Reduction of Se(IV) by sulfur reducing bacteria (SRB) can remove Se from groundwater either by direct respiration or the production of H2S(g) and subsequent abiotic reduction. This study examined abiotic Se(IV) reduction by H2S(g) to… read more here.

Keywords: fractionation; selenite stable; abiotic reduction; reduction ... See more keywords

Spontaneous Abiotic Reduction of Arsenate to Arsenite Mediated by Structural Fe(II) Resulting from Abundant Oxygen Vacancy Clusters in Poorly Crystalline Ferrihydrite in Drought Environments.

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Published in 2025 at "Environmental science & technology"

DOI: 10.1021/acs.est.4c10674

Abstract: The reduction of As(V) to As(III) has been proposed as an undesirable process, increasing the mobility and toxicity of arsenic. Although most studies revealed that As(V) reduction occurs in the aqueous phase, it remains unclear… read more here.

Keywords: spectroscopy; abiotic reduction; oxygen vacancy; vacancy clusters ... See more keywords
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Testing Abiotic Reduction of NAD+ Directly Mediated by Iron/Sulfur Minerals.

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Published in 2021 at "Astrobiology"

DOI: 10.1089/ast.2021.0035

Abstract: Life emerged in a geochemical context, possibly in the midst of mineral substrates. However, it is not known to what extent minerals and dissolved inorganic ions could have facilitated the evolution of biochemical reactions. Herein,… read more here.

Keywords: iron sulfide; testing abiotic; mediated iron; abiotic reduction ... See more keywords