Multi-channel electron transfer induced by polyvanadate in metal-organic framework for boosted peroxymonosulfate activation

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Aug. 22, 2024

Catalytic peroxymonosulfate (PMS) activation processes don't solely rely on electron transfer from dominant metal centers due to the complicated composition and interface environment of catalysts. Herein synthesis a cobalt based metal-organic framework containing polyvanadate [V4O12]4− cluster, Co2(V4O12)(bpy)2 (bpy = 4,4'-bipyridine), is presented. The catalyst demonstrates superior degradation activity toward various micropollutants, with higher highest occupied molecular orbital (HOMO), via nonradical attack. X-ray absorption spectroscopy density functional theory (DFT) calculations demonstrate that Co sites act as both PMS trapper donor. In situ spectral characterizations DFT reveal terminal oxygen atoms in sponge could interact hydrogen form bonds, promoting generation SO5* intermediate dynamic pull direct process. Further, exhibits long-term water purification ability, up 40 h, towards actual wastewater discharged an ofloxacin production factory. This work not only presents efficient for environmental remediation pathway, but also provides fundamental insights into Fenton-like reaction mechanism. Peroxymonosulfate might centers. Here, authors found formation bond between [V4O12] 4− provided extra channel achieving activation.

Language: Английский

---

The critical role of minerals in persulfate-based advanced oxidation process: Catalytic properties, mechanism, and prospects

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 482, P. 148969 - 148969

Published: Jan. 22, 2024

Language: Английский

---

Atomic‐Level Engineered Cobalt Catalysts for Fenton‐Like Reactions: Synergy of Single Atom Metal Sites and Nonmetal‐Bonded Functionalities

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(32)

Published: April 30, 2024

Abstract Single atom catalysts (SACs) are atomic‐level‐engineered materials with high intrinsic activity. Catalytic centers of SACs typically the transition metal (TM)–nonmetal coordination sites, while functions coexisting non‐TM‐bonded functionalities usually overlooked in catalysis. Herein, scalable preparation carbon‐supported cobalt‐anchored (CoCN) controlled Co─N sites and free functional N species is reported. The role metal‐ nonmetal‐bonded for peroxymonosulfate (PMS)‐driven Fenton‐like reactions first systematically studied, revealing their contribution to performance improvement pathway steering. Experiments computations demonstrate that 3 C plays a vital formation surface‐confined PMS* complex trigger electron transfer promote kinetics because optimized electronic state Co centers, nonmetal‐coordinated graphitic act as preferable pollutant adsorption additional PMS activation accelerate transfer. Synergistically, CoCN exhibits ultrahigh activity p ‐hydroxybenzoic acid oxidation, achieving complete degradation within 10 min an turnover frequency 0.38 −1 , surpassing most reported materials. These findings offer new insights into versatile inspire rational design high‐performance complicated heterogeneous systems.

Language: Английский

---

The activation of PMS for PFOA degradation by adjustable metal stripping Fe/Co/N@BC catalysts: Degradation performance with single-line oxygen and high-valent metal oxides as the main active substances

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 351, P. 127589 - 127589

Published: May 22, 2024

Language: Английский

---

Puissant synergistic effect between g-C3N4 and MIL-100(Fe) for highly stable enhanced activation of H2O2 to degrade antibiotic tetracycline hydrochloride

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(3), P. 112537 - 112537

Published: March 18, 2024

Language: Английский

---

Understanding the multiple roles of electrified MXene filter toward boosting the Fenton-like reaction

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 343, P. 127092 - 127092

Published: March 12, 2024

Language: Английский

---

Boosted adsorption and oxidation performances in peroxymonosulfate (PMS)-based heterogeneous fenton-like reactions via P, N co-doping strategy

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 354, P. 128587 - 128587

Published: June 27, 2024

Language: Английский

---

6PPD-quinone degradation by unactivated peroxymonosulfate via direct oxidation and enhanced generation of 1O2

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159307 - 159307

Published: Jan. 1, 2025

Language: Английский

---

CoFe-prussian blue analogues@MXenes membrane activated peroxymonosulfate through enhanced electron transfer for nanoconfined catalytic degradation of bisphenol A: The crucial role of 1O2

Journal of Membrane Science, Journal Year: 2025, Volume and Issue: unknown, P. 123738 - 123738

Published: Jan. 1, 2025

Language: Английский

---

Fe doping strategy induces peroxymonosulfate activation by ZIF-67 through a non-radical reaction pathway with dominant 1O2 generation

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 343, P. 127158 - 127158

Published: March 19, 2024

Language: Английский

---