Ce-doped CuCoO2 delafossite with switchable PMS activation pathway for tetracycline degradation

Chemical Engineering Journal, Год журнала: 2024, Номер 481, С. 148633 - 148633

Опубликована: Янв. 12, 2024

Язык: Английский

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Fenton-like membrane reactor assembled by electron polarization and defect engineering modifying Co3O4 spinel for flow-through removal of organic contaminants

Water Research, Год журнала: 2024, Номер 254, С. 121351 - 121351

Опубликована: Фев. 21, 2024

Язык: Английский

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Boosting charge transfer promotes photocatalytic peroxymonosulfate activation of S-doped CuBi2O4 nanorods for ciprofloxacin degradation: Key role of Ov–Cu–S and mechanism insight

Chemical Engineering Journal, Год журнала: 2024, Номер 494, С. 153075 - 153075

Опубликована: Июнь 12, 2024

Язык: Английский

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Metal−support interaction in single-atom electrocatalysts: A perspective of metal oxide supports

eScience, Год журнала: 2024, Номер 4(5), С. 100269 - 100269

Опубликована: Апрель 15, 2024

The discovery of single-atom catalysts (SACs) represents a groundbreaking advancement in the field catalysis over past decades. With in-depth exploration relevant structure-activity relationships, metal-support interaction (MSI) is widely adopted to elucidate variations electronic structure and coordination configuration atomic active sites on various kinds supports. Herein, we briefly summarize metal oxide supports for SACs fabrication, including distinctive characteristics supports, enlightening advancements support-based (MO-SACs), feasible preparation methods MO-SACs effective regulation strategies MSI effect MO-SACs. In addition, present our viewpoints outlook this stimulate rational design construction novel applied diverse renewable energy devices, while some universal suggestions are sincerely given provoke thoughtful considerations during research process.

Язык: Английский

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Cobalt leaching inhibition: Transforming coordination polymers into spherical Co3O4@NC catalysts for accelerated tetracycline degradation via enhanced PMS activation

Applied Surface Science, Год журнала: 2023, Номер 648, С. 158980 - 158980

Опубликована: Ноя. 23, 2023

Язык: Английский

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Constructing functional thermal-insulation-layer on Co3O4 nanosphere for reinforced local-microenvironment photothermal PMS activation in pollutant degradation

Journal of environmental chemical engineering, Год журнала: 2023, Номер 11(3), С. 109939 - 109939

Опубликована: Апрель 15, 2023

Язык: Английский

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Current Mechanism of Peroxymonosulfate Activation by Cobalt-Based Heterogeneous Catalysts in Degrading Organic Compounds

ACS ES&T Engineering, Год журнала: 2023, Номер 4(1), С. 19 - 46

Опубликована: Авг. 14, 2023

Persulfate based advanced oxidation processes (PS-AOPs) have been regarded as a mainstream degradation technology of organic compounds due to their high efficiency in wastewater treatment. In particular, peroxymonosulfate (PMS) has unique structure and chemical properties, which can be efficiently activated by Co-based catalysts produce active species with potential. These usually determine the subsequent an efficient process, while intrinsic reaction mechanism behind this complex process remains unclear therefore impedes continual development scientific community. Recently, density functional theory (DFT) calculations emerged powerful means identify electronic properties distinguish energy changes PMS activation system. With assistance quantum calculation, increasing investigations conducted focusing on explaining phenomenon that occurred experiments. However, these mainly contributed part sometimes even differ from each other, lacking comprehensive summary DFT calculation results. review, we introduce main uses catalytic PMS, provide recent application examples heterogeneous different structures, then discuss detail. Finally, research results method field are summarized, future focus challenges put forward, is conducive guiding practical design further PS-AOPs creating value products.

Язык: Английский

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Constructing High‐Performance Cobalt‐Based Environmental Catalysts from Spent Lithium‐Ion Batteries: Unveiling Overlooked Roles of Copper and Aluminum from Current Collectors

Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(32)

Опубликована: Май 15, 2024

Abstract Converting spent lithium‐ion batteries (LIBs) cathode materials into environmental catalysts has drawn more and attention. Herein, we fabricated a Co 3 O 4 ‐based catalyst from LiCoO 2 LIBs (Co ‐LIBs) found that the role of Al Cu current collectors on its performance is nonnegligible. The density functional theory calculations confirmed doping and/or upshifts d‐band center Co. A Fenton‐like reaction based peroxymonosulfate (PMS) activation was adopted to evaluate activity. Interestingly, strengthened chemisorption for PMS (from −2.615 eV −2.623 eV) shortened Co−O bond length 2.540 Å 2.344 Å) between them, whereas reduced interfacial charge‐transfer resistance 28.347 kΩ 6.689 kΩ) excepting enhancement above characteristics. As expected, degradation activity toward bisphenol ‐LIBs (0.523 min −1 ) superior prepared commercial CoC (0.287 ). Simultaneously, reasons improved were further verified by comparing with doped . This work reveals elements LIBs, which beneficial sustainable utilization LIBs.

Язык: Английский

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Phosphorus doped magnetic biochar activated PMS for effective degradation of pesticide in water: Targeted regulation of interfacial charge transfer by phosphorus doping

Separation and Purification Technology, Год журнала: 2024, Номер 340, С. 126739 - 126739

Опубликована: Фев. 14, 2024

Язык: Английский

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Multi‐Enzyme Mimetic MoCu Dual‐Atom Nanozyme Triggering Oxidative Stress Cascade Amplification for High‐Efficiency Synergistic Cancer Therapy

Angewandte Chemie International Edition, Год журнала: 2024, Номер 64(1)

Опубликована: Авг. 22, 2024

Single-atom nanozymes (SAzymes) with ultrahigh atom utilization efficiency have been extensively applied in reactive oxygen species (ROS)-mediated cancer therapy. However, the high energy barriers of reaction intermediates on single-atom sites and overexpressed antioxidants tumor microenvironment restrict amplification oxidative stress, resulting unsatisfactory therapeutic efficacy. Herein, we report a multi-enzyme mimetic MoCu dual-atom nanozyme (MoCu DAzyme) various catalytic active sites, which exhibits peroxidase, oxidase, glutathione (GSH) nicotinamide adenine dinucleotide phosphate (NADPH) oxidase mimicking activities. Compared Mo SAzyme, introduction Cu atoms, formation synergetic effects among enhance substrate adsorption reduce barrier, thereby endowing DAzyme stronger Benefiting from above enzyme-like activities, can not only generate multiple ROS, but also deplete GSH block its regeneration to trigger cascade stress. Additionally, strong optical absorption near-infrared II bio-window endows remarkable photothermal conversion performance. Consequently, achieves high-efficiency synergistic treatment incorporating collaborative therapy This work will advance applications DAzymes provide valuable insights for nanocatalytic

Язык: Английский

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