Electronic structure modulation of iron sites with fluorine coordination enables ultra-effective H2O2 activation

Nature Communications, Год журнала: 2024, Номер 15(1)

Опубликована: Март 12, 2024

Abstract Electronic structure modulation of active sites is critical important in Fenton catalysis as it offers a promising strategy for boosting H 2 O activation. However, efficient generation hydroxyl radicals (•OH) often limited to the unoptimized coordination environment sites. Herein, we report rational design and synthesis iron oxyfluoride (FeOF), whose strongly coordinate with most electronegative fluorine atoms characteristic moiety F-(Fe(III)O 3 )-F, effective activation potent •OH generation. Results demonstrate that plays pivotal role lowering local electron density optimizing electronic structures sites, thus facilitating rate-limiting adsorption subsequent peroxyl bond cleavage reactions. Consequently, FeOF exhibits significant pH-adaptive yield (~450 µM) high selectivity, which 1 ~ orders magnitude higher than state-of-the-art iron-based catalysts, leading excellent degradation activities against various organic pollutants at neutral condition. This work provides fundamental insights into function atomic level, may inspire sustainable environmental remediation.

Язык: Английский

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One-pot solvothermal synthesis of Cu–Fe-MOF for efficiently activating peroxymonosulfate to degrade organic pollutants in water:Effect of electron shuttle

Chemosphere, Год журнала: 2024, Номер 352, С. 141333 - 141333

Опубликована: Фев. 7, 2024

Язык: Английский

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Progress in copper-based supported heterogeneous electro-Fenton catalysts

Chemical Engineering Journal, Год журнала: 2024, Номер 486, С. 150217 - 150217

Опубликована: Март 7, 2024

Язык: Английский

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Gambling of homogeneous and heterogeneous Fenton in wastewater treatment

Cell Reports Physical Science, Год журнала: 2024, Номер 5(5), С. 101966 - 101966

Опубликована: Май 1, 2024

Employing Fenton technology for efficiently removing pollutants in water stands as a significant method. Within the domain of traditional techniques, there exist both homogeneous and heterogeneous systems. Homogeneous systems tackle iron sludge concerns through incorporation co-catalysts, whereas adeptly manipulate surface microenvironments adjust active sites, enabling pollutant degradation across wide range pH. Each system boasts distinct advantages limitations. This perspective critically examines existing challenges associated solutions reactions comprehensive analysis typical case studies. The focus is on evaluating industrial potential these systems, forecasting future developmental trends, fostering more robust sustainable advancement within context carbon peaking neutrality goals.

Язык: Английский

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Site-designed dual-active-center catalysts for co-catalysis in advanced oxidation processes

npj Materials Sustainability, Год журнала: 2025, Номер 3(1)

Опубликована: Янв. 7, 2025

Abstract Advanced Oxidation Processes (AOPs) are promising for treating persistent pollutants, yet challenges arise due to the step-wise oxidants activation process, which traditional single-active-center catalysts struggle facilitate effectively. Recently, dual-active-center have emerged as a solution by enabling synergistic reactions. This review covers advances in these catalysts, their co-catalytic mechanisms, and applications electro-Fenton, photocatalytic, peroxymonosulfate-, pollutant-as-electron-donor based Fenton-like processes, along with active site design considerations future challenges.

Язык: Английский

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Recent advances in the application of natural iron and clay minerals in heterogeneous electro-Fenton process

Current Opinion in Electrochemistry, Год журнала: 2024, Номер 46, С. 101495 - 101495

Опубликована: Март 26, 2024

Язык: Английский

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Modulating the electronic structures of Fe3C-based catalyst by surface sulfidation to facilitate H2O2 activation

Applied Catalysis B Environment and Energy, Год журнала: 2024, Номер 353, С. 124076 - 124076

Опубликована: Апрель 16, 2024

Язык: Английский

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Electron transfer mediated activation of periodate by contaminants to generate 1O2 by charge-confined single-atom catalyst

Nature Communications, Год журнала: 2024, Номер 15(1)

Опубликована: Ноя. 5, 2024

The electron transfer process (ETP) is able to avoid the redox cycling of catalysts by capturing electrons from contaminants directly. However, ETP usually leads formation oligomers and reduction oxidants anions. Herein, charge-confined Fe single-atom catalyst (Fe/SCN) with Fe-N3S1 configuration was designed achieve ETP-mediated contaminant activation oxidant limiting number gained generate 1O2. Fe/SCN-activate periodate (PI) system shows excellent degradation performance due combination Experiments DFT calculations show that Fe/SCN-PI* complex strong oxidizing ability triggers ETP, while effect allows single-electronic PI In Fe/SCN + system, 100% selectivity dechlorination ring-opening 1O2 generation realize transformation large-molecule into small-molecule biodegradable products. Furthermore, anti-interference application potential. This work pioneers active species using ETP's activate oxidants, which provides a perspective on design via effect. process, always form lack ROS. Here, authors achieved mediated charge confined catalyst.

Язык: Английский

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Boosting peroxymonosulfate activation with a composite of highly dispersed FeS2 nanoparticles anchored on N-doped biochar for efficient tetracycline degradation

Journal of environmental chemical engineering, Год журнала: 2024, Номер 12(3), С. 113027 - 113027

Опубликована: Май 11, 2024

Язык: Английский

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Electro-Fenton degradation of pefloxacin using MOFs derived Cu, N co-doped carbon as a nanocomposite catalyst

Environmental Pollution, Год журнала: 2024, Номер 355, С. 124198 - 124198

Опубликована: Май 21, 2024

Язык: Английский

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