Active iron phases regulate the abiotic transformation of organic carbon during redox fluctuation cycles of paddy soil

N Chen, Q Fu, T Wu, P Cui, G Fang, C Liu… - Environmental …, 2021 - ACS Publications
Iron (Fe) phases are tightly linked to the preservation rather than the loss of organic carbon
(OC) in soil; however, during redox fluctuations, OC may be lost due to Fe phase-mediated …

Enhanced aging of polystyrene microplastics in sediments under alternating anoxic-oxic conditions

S Chen, Y Yang, X Jing, L Zhang, J Chen, C Rensing… - Water Research, 2021 - Elsevier
Aging of microplastics (MPs)(ie, degradation and weathering) is ubiquitous in the
environment. The MP aging process is thought to be limited to light and static areas, while …

Mutual interactions between reduced Fe-bearing clay minerals and humic acids under dark, oxygenated conditions: hydroxyl radical generation and humic acid …

Q Zeng, X Wang, X Liu, L Huang, J Hu… - … science & technology, 2020 - ACS Publications
Hydroxyl radicals (· OH) exert a strong impact on the carbon cycle due to their nonselective
and highly oxidizing nature. Reduced iron-containing clay minerals (RIC) are one of the …

Mechanistic insight into humic acid-enhanced hydroxyl radical production from Fe (II)-bearing clay mineral oxygenation

C Yu, Y Zhang, Y Lu, A Qian, P Zhang… - Environmental …, 2021 - ACS Publications
Hydroxyl radical (• OH) production by electron transfer from Fe (II)-bearing clay minerals to
oxygen has been increasingly reported. However, the influence of ubiquitous coexisting …

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 …

Contaminant degradation by• OH during sediment oxygenation: dependence on Fe (II) species

W Xie, S Yuan, M Tong, S Ma, W Liao… - Environmental …, 2020 - ACS Publications
It has been documented that contaminants could be degraded by hydroxyl radicals (• OH)
produced upon oxygenation of Fe (II)-bearing sediments. However, the dependence of …

Active iron species driven hydroxyl radicals formation in oxygenation of different paddy soils: Implications to polycyclic aromatic hydrocarbons degradation

N Chen, D Huang, G Liu, L Chu, G Fang, C Zhu… - Water Research, 2021 - Elsevier
The frequently occurring redox fluctuations in paddy soil are critical to the cycling of redox-
sensitive elements (eg, iron (Fe) and carbon) due to the driving of microbial processes …

Mechanisms of electron transfer from structrual Fe (II) in reduced nontronite to oxygen for production of hydroxyl radicals

S Yuan, X Liu, W Liao, P Zhang, X Wang… - … et Cosmochimica Acta, 2018 - Elsevier
Production of hydroxyl radicals (radical dot OH) has been recently revealed upon
oxygenation of sediments in redox-dynamic subsurface environments. In particular, Fe (II) …

Self-endowed magnetic photocatalysts derived from iron-rich sludge and its recycling in photocatalytic process for tetracycline degradation

X Liu, H Wang, C Wang, L Zhao, H Pan, Y Liu… - Bioresource …, 2024 - Elsevier
The disposal of iron-rich sludge by landfill or incineration poses environmental risks and
wastes resources. The utilization of iron-rich sludge for magnetic material preparation offers …