Atomic Hydrogen in Electrocatalytic Systems: Generation, Identification, and Environmental Applications

Water Research, Год журнала: 2022, Номер 223, С. 118994 - 118994

Опубликована: Авг. 18, 2022

Язык: Английский

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Mechanism of the application of single-atom catalyst-activated PMS/PDS to the degradation of organic pollutants in water environment: A review

Journal of Cleaner Production, Год журнала: 2023, Номер 397, С. 136468 - 136468

Опубликована: Фев. 23, 2023

Язык: Английский

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High-efficiency degradation of carbamazepine by the synergistic electro-activation and bimetals (FeCo@NC) catalytic-activation of peroxymonosulfate

Applied Catalysis B Environment and Energy, Год журнала: 2023, Номер 338, С. 123064 - 123064

Опубликована: Июль 3, 2023

Язык: Английский

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Electro-Induced Carbon Nanotube Discrete Electrodes for Sustainable Persulfate Activation

Environmental Science & Technology, Год журнала: 2022, Номер 56(19), С. 14019 - 14029

Опубликована: Сен. 5, 2022

In electrochemical advanced oxidation processes (EAOPs), the rate-limiting step is mass transfer of pollutants to electrodes due limited active surface areas. To this end, we established a three-dimensional (3D) EAOP system by coupling conventional graphite with dispersed carbon nanotubes (CNTs). The (particularly anode) induced electric field spontaneously polarized CNTs into reactive particle (CNT-PEs) in solution, which remarkably promoted activation peroxydisulfate (PDS) generate CNT-PDS* complexes and surface-bound radicals (SBRs). Based on excited potential (ECNT-PEs) at different positions 3D field, CNT-PEs were activated three states. (i) ECNT-PEs < Eorganic, are chemically inert toward DCP oxidation; (ii) Eorganic Ewater, will oxidize via an electron-transfer process (ETP); (iii) > both anode water produce SBRs. Thus, could be oxidized ETP form polychlorophenols CNT surface, causing rapid deactivation micro-electrodes. contrast, SBRs attack directly chloride ions hydroxylated products, maintaining cleanliness activity for long-term operations.

Язык: Английский

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Insights into reactive species generation and organics selective degradation in Fe-based heterogeneous Fenton-like systems: A critical review

Chemical Engineering Journal, Год журнала: 2022, Номер 454, С. 140126 - 140126

Опубликована: Ноя. 9, 2022

Язык: Английский

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Persulfate activated by non-thermal plasma for organic pollutants degradation: A review

Chemical Engineering Journal, Год журнала: 2023, Номер 470, С. 144094 - 144094

Опубликована: Июнь 16, 2023

Язык: Английский

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Challenges Relating to the Quantification of Ferryl(IV) Ion and Hydroxyl Radical Generation Rates Using Methyl Phenyl Sulfoxide (PMSO), Phthalhydrazide, and Benzoic Acid as Probe Compounds in the Homogeneous Fenton Reaction

Environmental Science & Technology, Год журнала: 2023, Номер 57(47), С. 18617 - 18625

Опубликована: Фев. 1, 2023

Ferryl ion ([FeIVO]2+) has often been suggested to play a role in iron-based advanced oxidation processes (AOPs) with its presence commonly determined using the unique pathway from methyl phenyl sulfoxide (PMSO) sulfone (PMSO2). However, we show here that products of PMSO, formed on reaction hydroxyl radical, enhance PMSO2 formation as result their complexation Fe(III) leading changes reactivity species homogeneous Fenton reaction. As such, PMSO should be used caution investigate [FeIVO]2+ AOPs these insights suggesting need reassess findings many previous studies which this reagent was used. The other common target compounds, phthalhydrazide and hydroxybenzoic acids, were also found modify rate extent iron cycling and/or redox reactions, either by probe compound itself formed. Overall, study highlights confounding effects aromatic compounds recognized if reliable mechanistic into are obtained.

Язык: Английский

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Photocatalysis-self-Fenton system over edge covalently modified g-C3N4 with high mineralization of persistent organic pollutants

Environmental Research, Год журнала: 2023, Номер 222, С. 115361 - 115361

Опубликована: Янв. 28, 2023

Язык: Английский

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Highly Efficient Fe^III‐initiated Self‐cycled Fenton System in Piezo‐catalytic Process for Organic Pollutants Degradation

Angewandte Chemie International Edition, Год журнала: 2023, Номер 62(32)

Опубликована: Июнь 15, 2023

Piezo-catalytic self-Fenton (PSF) system has been emerging as a promising technique for wastewater treatment, while the competing O2 reductive hydrogen peroxide (H2 ) production and FeIII reduction seriously limited reaction kinetics. Here, we develop two-electron water oxidative H2 (WOR-H2 coupled with over /BiOIO3 piezo-catalyst highly efficient PSF. It is found that presence of can simultaneously initiate WOR-H2 to FeII , thereby enabling rapid kinetics towards subsequent Fenton /FeII . The initiating PSF offers exceptional self-recyclable degradation pollutants rate constant sulfamethoxazole (SMZ) 3.5 times classic -PSF system. This study new perspective constructing systems shatters preconceived notion in reaction.

Язык: Английский

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Interstitial Boron Atoms in Pd Aerogel Selectively Switch the Pathway for Glycolic Acid Synthesis from Waste Plastics

Advanced Materials, Год журнала: 2024, Номер unknown

Опубликована: Июль 28, 2024

Abstract Electro‐reforming of poly(ethylene terephthalate) (PET) into valuable chemicals is garnering significant attention as it opens a mild avenue for waste resource utilization. However, achieving high activity and selectivity C2 products during ethylene glycol (EG) oxidation in PET hydrolysate on Pd electrocatalysts remains challenging. The strong interaction between carbonyl (*CO) intermediates leads to undesirable over‐oxidation poisoning sites, which hinders the highly efficient production. Herein, nonmetallic alloying strategy employed fabricate Pd‐boron alloy aerogel (PdB), wherein B atoms are induced regulate electron structure surface oxophilicity. This approach allows remarkable mass 6.71 A mg −1 , glycolic acid (GA) Faradaic efficiency (FE) 93.8%, stable 100 h cyclic electrolysis. In situ experiments density functional theory calculations reveal contributions inserted lattice effective EG‐to‐GA conversion. Interestingly, heightened oxophilicity regulated electronic by incorporation weakened *CO adsorption enhanced hydroxyl species affinity accelerate oxidative *OH adspecies formation, thereby synergistically avoiding boosting GA synthesis. work provides insights rational design high‐performance synthesis via an oxophilic motifs strategy.

Язык: Английский

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