What question did this study set out to answer?

To investigate the molecular-level effects of iron reoxidation on dissolved organic matter in coastal sediments.

December 11, 2025Environmental Science & Technology

Molecular Alteration of Dissolved Organic Matter in Intertidal Sediments: The Role of Fe(II) Reoxidation

View Full Paper

Ask AI

Bookmark

Authors

HXHuifang XIAOTongji University ZZZhe ZhouTongji University JLJiangtao LiTongji University

Discussion

Member takes

Implication

Experiments reveal iron reoxidation alters organic matter and nutrient availability in coastal environments, indicating implications for biogeochemical cycling.

Key Points

To investigate the molecular-level effects of iron reoxidation on dissolved organic matter in coastal sediments.
Conducted controlled oxidation experiments in Changjiang Estuary porewaters
Utilized Fourier-transform ion cyclotron resonance mass spectrometry (FT-ICR-MS)
Analyzed changes in DOM composition and nutrient availability
Dissolved organic carbon (DOC) decreased by up to 37% due to iron reoxidation
Significant abiotic sulfurization and nitrogen incorporation into DOM observed
New aromatic and refractory polymeric structures formed in the DOM pool

Cite This Study

XIAO et al. (2025) studied this question.

synapsesocial.com/papers/69401b1e2d562116f28f7628 https://doi.org/10.1021/acs.est.5c06631

View Full Paper

Ask AI

Bookmark

Implication

Experiments reveal iron reoxidation alters organic matter and nutrient availability in coastal environments, indicating implications for biogeochemical cycling.

Molecular Alteration of Dissolved Organic Matter in Intertidal Sediments: The Role of Fe(II) Reoxidation

Discussion

Member takes

Implication

Key Points

Cite This Study

Molecular Alteration of Dissolved Organic Matter in Intertidal Sediments: The Role of Fe(II) Reoxidation

Discussion

Member takes

Implication

Key Points

Cite This Study

Also Consider

Also Consider