Computer Science
Scientific paper
May 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991gecoa..55.1289s&link_type=abstract
Geochimica et Cosmochimica Acta, vol. 55, Issue 5, pp.1289-1294
Computer Science
4
Scientific paper
Fe(II)-dependent nitrite reduction was studied in oxygen-free reaction flasks at pH values from 6.0 to 8.5 and in the presence and absence of the Fe(III) oxyhydroxide lepidocrocite ( -FeOOH). When ionic Fe 2+ was added to flasks containing lepidocrocite, rapid Fe 2+ consumption and release of H + took place. The solid phase turned dark and contained magnetite (Fe 3 O 4 ). This reaction was independent of the presence of NO 2 - . However, rapid NO 2 - reduction primarily to N 2 O was observed only after the Fe 2+ binding to lepidocrocite was initiated; insignificant NO 2 - reduction was observed in control flasks without lepidocrocite. Both Fe 2+ binding and associated H + release and NO 2 - reduction were negligible at pH values of 7.0 and below, but increased dramatically as pH was raised to 8.5. The Fe(II) associated with a reactive complex formed during Fe 2+ binding to lepidocrocite, and not the ionic Fe 2+ , seemed responsible for the reduction of NO 2 - . The catalytic effect of Fe(III) oxyhydroxide may stimulate Fe(II)dependent formation of N 2 O from NO 2 - (chemodenitrification) in geochemical systems such as sediments and subsoils.
Sørensen Jan
Thorling Lærke
No associations
LandOfFree
Stimulation by lepidocrocite (7-FeOOH) of Fe(II)-dependent nitrite reduction does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Stimulation by lepidocrocite (7-FeOOH) of Fe(II)-dependent nitrite reduction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stimulation by lepidocrocite (7-FeOOH) of Fe(II)-dependent nitrite reduction will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1037537