Generation and engineering applications of sulfate radicals in environmental remediation

Chemosphere, Journal Year: 2023, Volume and Issue: 339, P. 139659 - 139659

Published: July 27, 2023

Language: Английский

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Modulating electronic structure of active sites on iron-based nanoparticles enhances peroxymonosulfate activation

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 354, P. 124138 - 124138

Published: April 29, 2024

Language: Английский

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Hydroxyl radicals in ozone-based advanced oxidation of organic contaminants: A review

Environmental Chemistry Letters, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 2, 2024

Language: Английский

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Catalytic activity and reaction mechanisms of single-atom metals anchored on nitrogen-doped carbons for peroxymonosulfate activation

Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 459, P. 132133 - 132133

Published: July 23, 2023

Language: Английский

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Synthesis and Characterization of a New Nanocatalyst Based on Keggin-Type Polyoxovanadate/Nickel-Zinc Oxide, PV₁₄/NiZn₂O₄, as a Potential Material for Deep Oxidative Desulfurization of Fuels

Energy & Fuels, Journal Year: 2023, Volume and Issue: 37(13), P. 9474 - 9486

Published: June 14, 2023

On account of the undesirable sulfur compounds in gasoline, a new heterogeneous catalyst (PV14/NiZn2O4) was synthesized successfully by immobilizing Keggin-type polyoxovanadate (K9[PV14O42]·11H2O) (abbreviated as PV14) on surface nickel-zinc oxide (NiZn2O4). The physicochemical characteristics nanocomposite well its individual constituents were identified Fourier transform infrared (FTIR), ultraviolet–visible (UV–vis), X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive (EDX), and thermogravimetric analysis-differential thermogravimetry (TGA-DTG) techniques. characterization outcomes indicated that PV14 uniformly dispersed over NiZn2O4. PV14/NiZn2O4 nanocatalyst served for catalytic oxidative desulfurization (Cat-ODS) real gasoline model fuel oils (MFOs) with 3 mL H2O2/AcOH oxidizing agent (volume ratio 2:1). optimum conditions Cat-ODS process obtained using 0.1 g at 35 °C after 60 min under atmospheric pressure. Based experimental results described above, it observed total concentration present authentic underwent substantial reduction from 0.4987 to 0.0143 wt %, denoting an efficiency 96%. Moreover, elimination MFOs, which are difficult remove, could reach up 95% same reaction conditions. Furthermore, efficacy sustained five cycles, without any notable performance. Finally, mechanism proposed through generation oxo–peroxo intermediate species.

Language: Английский

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Cobalt doping amount determines dominant reactive species in peroxymonosulfate activation via porous carbon catalysts co-doped by cobalt and nitrogen

Journal of Environmental Sciences, Journal Year: 2023, Volume and Issue: 138, P. 212 - 226

Published: April 6, 2023

Language: Английский

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Current insight into enhanced strategies and interaction mechanisms of hydrogel materials for phosphate removal and recovery from wastewater

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 892, P. 164514 - 164514

Published: June 1, 2023

Language: Английский

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Electronic Phosphide–Support Interactions in Carbon-Supported Molybdenum Phosphide Catalysts Derived from Metal–Organic Frameworks

Nano Letters, Journal Year: 2023, Volume and Issue: 23(23), P. 10955 - 10963

Published: Nov. 16, 2023

Interfacial interaction in carbon-supported catalysts can offer geometric, electronic, and compositional effects that be utilized to regulate catalytically active sites, while this is far from being systematically investigated phosphide catalysts. Here, we proposed a novel concept of electronic phosphide-support (EPSI), which was confirmed by using molybdenum (MoP) supported on nitrogen-phosphorus codoped carbon (NPC) as model catalyst (MoP@NPC). Such strong EPSI could not only stabilize MoP low-oxidation state under environmental conditions but also its structure, leading reduced dissociation energy the oxygen-containing intermediates enhancing catalytic activity for oxidative desulfurization. The removal dibenzothiophene over MoP@NPC high 100% with turnover frequency (TOF) value 0.0027 s-1, 33 times higher than without EPSI. This work will open new avenues development high-performance

Language: Английский

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Electron Delocalization Disentangles Activity-Selectivity Trade-Off of Transition Metal Phosphide Catalysts in Oxidative Desulfurization

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: 58(33), P. 14895 - 14905

Published: Aug. 8, 2024

Breaking the activity-selectivity trade-off has been a long-standing challenge in catalysis. Here, we proposed nanoheterostructure engineering strategy to overcome metal phosphide catalysts for oxidative desulfurization (ODS) of fuels. Experimental and theoretical results demonstrated that electron delocalization was key driver simultaneously achieve high activity selectivity molybdenum (MoP)/tungsten (WP) catalyst. The not only promoted catalytic pathway transition from predominant radicals singlet oxygens H

Language: Английский

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Mechanochemical driven oxidative desulfurization of high-sulfur petroleum coke over [Bpy]PMoVn coupled with amide-based binary deep eutectic solvents

Chemical Engineering Science, Journal Year: 2024, Volume and Issue: unknown, P. 121021 - 121021

Published: Nov. 1, 2024

Language: Английский

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