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Geobatteries in environmental biogeochemistry: Electron transfer and utilization

Environmental Science and Ecotechnology 2024年第6期22卷 38-51页

作者： Shihao Cui Rui Wang Qing Chen Lorenzo Pugliese Shubiao Wu Department of Agroecology Aarhus UniversityBlichers Allé208830TjeleDenmark Department of Biological and Chemical Engineering Aarhus UniversityGustav Wieds Vej 108000AarhusDenmark Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation College of Resources and Environmental SciencesChina Agricultural UniversityBeijing100193China

The efficiency of direct electron flow from electron donors to electron acceptors in redox reactions is significantly influenced by the spatial separation of these ***,a class of redox-active substances naturally present in soil-water systems,act as electron reservoirs,reversibly donating,storing,and accepting *** capability allows the temporal and spatial decoupling of redox half-reactions,providing a flexible electron transfer *** this review,we systematically examine the critical role of geobatteries in influencing electron transfer and utilization in environmental biogeochemical *** redox-active centers within geobatteries,such as quinone-like moieties,nitrogen-and sulfur-containing groups,and variable-valent metals,possess the potential to repeatedly charge and *** characterization techniques,ranging from qualitative methods like elemental analysis,imaging,and spectroscopy,to quantitative techniques such as chemical,spectroscopic,and electrochemical methods,have been developed to evaluate this reversible electron transfer ***,current research on the ecological and environmental significance of geobatteries extends beyond natural soil-water systems(e.g.,soil carbon cycle)to engineered systems such as water treatment(e.g.,nitrogen removal)and waste management(e.g.,anaerobic digestion).Despite these advancements,challenges such as the complexity of environmental systems,difficulties in accurately quantifying electron exchange capacity,and scaling-up issues must be addressed to fully unlock their *** review underscores both the promise and challenges associated with geobatteries in responding to environmental issues,such as climate change and pollutant transformation.

关键词： geobattery Electron transfer Redox reactions

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