Metal-organic framework-derived diatomic catalysts for environmental remediation: Synthesis, applications and improvement strategies

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 526, P. 216357 - 216357

Published: Nov. 29, 2024

Language: Английский

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Fluorinated Defect-Engineered Acetylenic Polymers with Separated Active Centers for Switching the Photosensitized Activation Pathway of Peroxymonosulfate

ACS Catalysis, Journal Year: 2024, Volume and Issue: 14(3), P. 1405 - 1418

Published: Jan. 11, 2024

The engineering of conjugated acetylenic polymers (CAPs) has great potential for photosensitized oxyanion activation, wherein their catalytic performance can be further advanced by incorporating artificial defects, while relevant reports are rare. Herein, we deliberately introduce the fluorinated defect into structure poly(1,3,5-triethynylbenzene) (PTEB) via copper-surface mediated Glaser polycondensation (denote as PTEB-Fx). PTEB-Fx exhibits a surface with an abundance acetylene moieties that possess strong affinity capturing oxyanions through preferential binding to peroxy-bonds oxyanions. Meanwhile, adjacent defects effectively delocalize π-electrons, narrow optical bandgap, and facilitate charge separation, thereby optimizing kinetics thermodynamics peroxymonosulfate (PMS) activation. Such spatial separated active centers leads synergistic effect involving enhanced oxidation ability holes (h+) elongation O–H bond in PMS, which triggers switch activation pathway toward oxidative generation singlet oxygen (1O2), opposed conventional reductive course yielding radical species (•OH SO4•–). Additionally, featuring inherent self-standing merit overcomes challenges associated limited light energy utilization cumbersome retrieval powder photosensitizers, thus broadening its large-scale application.

Language: Английский

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Continuous peroxymonosufate activation for antibiotics degradation via fluorine-free-Ti3C2Tx-CoFe2O4 hydrogel beads: performance, mechanism and application

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 358, P. 124441 - 124441

Published: July 25, 2024

Language: Английский

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Prussian blue analogue-derived high-entropy alloy nanoarchitectonics for efficient Fenton-like catalysis

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(17), P. 10081 - 10089

Published: Jan. 1, 2024

The FeCoMnNiCuNC system accelerates the simultaneous generation of versatile Fe IV O and ˙OH by cooperation highly active Fe, Co, Mn sites secondary Ni, Cu sites, along with promoting efficiency in oxidating emerging pollutants.

Language: Английский

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Surface defect and carbonyl engineering of CNTs via oxygen-plasma etching: Oriented production of singlet oxygen from peroxymonosulfate activation

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 337, P. 126454 - 126454

Published: Jan. 20, 2024

Language: Английский

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Regulating the type of nitrogen to improve the performance of Co–N/C with a confinement effect in peroxymonosulfate activation for the effective degradation of organic pollutants

Environmental Science Nano, Journal Year: 2024, Volume and Issue: 11(5), P. 2010 - 2020

Published: Jan. 1, 2024

Three Co–N/C-based catalysts with different types of nitrogen are prepared and employed to activate peroxymonosulfate for tetracycline degradation.

Language: Английский

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Tris(triazolo)triazine‐Based Covalent Organic Frameworks for Efficiently Photocatalytic Hydrogen Peroxide Production

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(45)

Published: July 1, 2024

Abstract Two‐dimensional covalent organic frameworks (2D‐COFs) have recently emerged as fascinating scaffolds for solar‐to‐chemical energy conversion because of their customizable structures and functionalities. Herein, two tris(triazolo)triazine‐based COF materials (namely COF‐JLU51 COF‐JLU52) featuring large surface area, high crystallinity, excellent stability photoelectric properties were designed constructed the first time. Remarkably, gave an outstanding H 2 O production rate over 4200 μmol g −1 h with reusability in pure water under one standard sun light, that higher than its isomorphic COF‐JLU52 most reported metal‐free materials, owing to superior generation, separation transport photogenerated carriers. Experimental theoretical researches prove photocatalytic process undergoes a combination indirect 2e − reduction reaction (ORR) 4e oxidation (WOR). Specifically, ultrahigh yield 7624.7 apparent quantum 18.2 % was achieved 1 : ratio benzyl alcohol system. This finding contributes novel, nitrogen‐rich high‐quality also designate bright future solar transformations.

Language: Английский

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Generating 1O2 and CoIV=O through efficient peroxymonosulfate activation by ZnCo2O4 nanosheets for pollutant control

Nano Research, Journal Year: 2024, Volume and Issue: 17(9), P. 8025 - 8035

Published: July 25, 2024

Language: Английский

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Spatial Axial Oxygen Coordination of CoSA-N2O1/MXene Single-Atom Catalyst with Electron-Depleted Active Site for Selective 1O2 Generation

Applied Catalysis B Environment and Energy, Journal Year: 2025, Volume and Issue: unknown, P. 125378 - 125378

Published: April 1, 2025

Language: Английский

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The insights into facet-dependent catalytic performance of Cu2O in peroxymonosulfate activation for effective degradation of antibiotics

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 353, P. 128318 - 128318

Published: June 6, 2024

Language: Английский

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