Coupled iron cycling and organic matter transformation across redox interfaces

H Dong, Q Zeng, Y Sheng, C Chen, G Yu… - Nature Reviews Earth & …, 2023 - nature.com
Soils and sediments are major reservoirs of organic matter (OM), whose dynamic turnover
has a major impact on carbon cycling and global climate. OM in soils and sediments is …

[HTML][HTML] Interactions between organic matter and Fe oxides at soil micro-interfaces: Quantification, associations, and influencing factors

Q Li, W Hu, L Li, Y Li - Science of the Total Environment, 2023 - Elsevier
Iron (Fe) oxides are widely recognized to prevent the degradation of organic matter (OM) in
environments, thereby promoting the persistence of organic carbon (OC) in soils. Thus …

Redox oscillations activate thermodynamically stable iron minerals for enhanced reactive oxygen species production

G Zhao, M Tan, B Wu, X Zheng, R Xiong… - Environmental …, 2023 - ACS Publications
Reactive oxygen species (ROS) play key roles in driving biogeochemical processes. Recent
studies have revealed nonphotochemical electron transfer from redox-active substances …

Tide-triggered production of reactive oxygen species in coastal soils

G Zhao, B Wu, X Zheng, B Chen… - … Science & Technology, 2022 - ACS Publications
We report an unrecognized, tidal source of reactive oxygen species (ROS). Using a newly
developed ROS-trapping gel film, we observed hot spots for ROS generation within∼ 2.5 …

Insight into the photodegradation of microplastics boosted by iron (hydr) oxides

L Ding, X Guo, S Du, F Cui, Y Zhang, P Liu… - … science & technology, 2022 - ACS Publications
Iron (hydr) oxides as a kind of natural mineral actively participate in the transformation of
organic pollutants, but there is a large knowledge gap in their impacts on photochemical …

Redox-induced transformation of potentially toxic elements with organic carbon in soil

Z Xu, DCW Tsang - Carbon Research, 2022 - Springer
Soil organic carbon (SOC) is a crucial component that significantly affects the soil fertility,
soil remediation, and carbon sequestration. Here, we review the redox-induced …

Multiple effects of humic components on microbially mediated iron redox processes and production of hydroxyl radicals

R Han, Z Wang, J Lv, Z Zhu, GH Yu, G Li… - … Science & Technology, 2022 - ACS Publications
Microbially mediated iron redox processes are of great significance in the biogeochemical
cycles of elements, which are often coupled with soil organic matter (SOM) in the …

Natural sediments activating peroxydisulfate for in situ degradation of antibiotics under anoxic conditions: The critical role of surface-adsorbed and structural Fe (II)

W Liao, W Peng, P Liao, Y Xiao, W Xie, A Qian… - Chemical Engineering …, 2023 - Elsevier
Peroxydisulfate (PDS) is widely used in groundwater remediation systems. Previous studies
investigated its activation by natural sediments under oxic conditions. However, the role of …

Promotion of humic acid transformation by abiotic and biotic Fe redox cycling in nontronite

D Hu, Q Zeng, J Zhu, C He, Q Shi… - Environmental Science & …, 2023 - ACS Publications
The redox activity of Fe-bearing minerals is coupled with the transformation of organic matter
(OM) in redox dynamic environments, but the underlying mechanism remains unclear. In this …

Significant contribution of solid organic matter for hydroxyl radical production during oxygenation

C Yu, Y Lu, Y Zhang, A Qian, P Zhang… - Environmental …, 2022 - ACS Publications
Dark formation of hydroxyl radicals (• OH) from soil/sediment oxygenation has been
increasingly reported, and solid Fe (II) is considered as the main electron donor for O2 …