Iron redox cycling in layered clay minerals and its impact on contaminant dynamics: A review

Q Fan, L Wang, Y Fu, Q Li, Y Liu, Z Wang… - Science of the Total …, 2023 - Elsevier
A majority of clay minerals contain Fe, and the redox cycling of Fe (III)/Fe (II) in clay minerals
has been extensively studied as it may fuel the biogeochemical cycles of nutrients and …

Recent advances in the roles of minerals for enhanced microbial extracellular electron transfer

G Dong, Y Chen, Z Yan, J Zhang, X Ji, H Wang… - … and Sustainable Energy …, 2020 - Elsevier
Minerals are ubiquitous in the natural environment and have close contact with
microorganisms. In various scenarios, microorganisms that harbor extracellular electron …

Degradation of 1, 4-dioxane by hydroxyl radicals produced from clay minerals

Q Zeng, H Dong, X Wang, T Yu, W Cui - Journal of hazardous materials, 2017 - Elsevier
Dioxane is causing a general concern as an emerging contaminant in groundwater
environment. Traditional remediation methods can be either inefficient or costly. In this study …

Reductive defluorination of Perfluorooctanesulfonic acid (PFOS) by hydrated electrons generated upon UV irradiation of 3-Indole-acetic-acid in 12-Aminolauric …

A Kugler, H Dong, C Li, C Gu, CE Schaefer, YJ Choi… - Water Research, 2021 - Elsevier
Per-and poly-fluoroalkyl substances (PFASs) are a class of persistent compounds that are
resistant to degradation. Here we developed an effective method of degrading …

Lignin-enhanced reduction of structural Fe (III) in nontronite: Dual roles of lignin as electron shuttle and donor

Y Sheng, H Dong, RK Kukkadapu, S Ni, Q Zeng… - … et Cosmochimica Acta, 2021 - Elsevier
Lignin is a major component of plant-derived soil organic matter (SOM) in soils and
sediments. Fe-bearing clay minerals are widely distributed in these environments and often …

Effect of ligands on the production of oxidants from oxygenation of reduced Fe-bearing clay mineral nontronite

Q Zeng, H Dong, X Wang - Geochimica et Cosmochimica Acta, 2019 - Elsevier
Oxygenation of reduced iron-bearing clay minerals produces highly reactive oxidants that
are capable of transforming a range of organic compounds, which is of great environmental …

Molecular transformation of petroleum compounds by hydroxyl radicals produced upon oxidation of reduced nontronite

Y Liu, Y Zhang, G Chen, Y Li, Q Zeng, J Hu… - … et Cosmochimica Acta, 2024 - Elsevier
At redox interfaces, the interaction between oxygen and structural Fe (II) in minerals
produces hydroxyl radicals (● OH); however, the specific reactivity and mechanisms of …

Coupled reduction of structural Fe (III) in nontronite and oxidation of petroleum hydrocarbons

Y Liu, S Shi, Q Zeng, Y Li, Y Chen, D Guo, D Hu… - … et Cosmochimica Acta, 2023 - Elsevier
Fe-bearing clay minerals are frequently present in oil reservoirs as potential electron
acceptor. Compounds in crude oil may mediate microbial reduction of structural Fe (III) in …

Reduced iron-containing clay minerals as antibacterial agents

X Wang, H Dong, Q Zeng, Q **a… - … Science & Technology, 2017 - ACS Publications
Previous work documented the general antibacterial mechanism of iron containing clays that
involved hydroxyl radical (• OH) production from soluble Fe2+, and attack of cell membrane …

Distinct assembly processes shape bacterial communities along unsaturated, groundwater fluctuated, and saturated zones

Y Sheng, G Li, H Dong, Y Liu, L Ma, M Yang… - Science of the Total …, 2021 - Elsevier
The subsurface soil environment through the unsaturated (vadose) zone and saturated
(below groundwater table) zone is one of the most active layers in the Earth's surface with …