Catalytic performance of FeCo2O4 spinel cobaltite for degradation of ethylparaben in a peroxymonosulfate activation process: Response surface optimization, reaction kinetics and cost estimation DOI
Burcu Palas

Journal of Molecular Structure, Journal Year: 2024, Volume and Issue: 1322, P. 140340 - 140340

Published: Oct. 10, 2024

Language: Английский

Do We Appropriately Detect and Understand Singlet Oxygen Possibly Generated in Advanced Oxidation Processes by Electron Paramagnetic Resonance Spectroscopy? DOI
Yang Zong, Long Chen, Yunqiao Zeng

et al.

Environmental Science & Technology, Journal Year: 2023, Volume and Issue: 57(25), P. 9394 - 9404

Published: June 13, 2023

Electron paramagnetic resonance (EPR) spectroscopy using sterically hindered amine is extensively applied to detect singlet oxygen (1O2) possibly generated in advanced oxidation processes. However, EPR-detectable 1O2 signals were observed not only the 1O2-dominated hydrogen peroxide (H2O2)/hypochlorite (NaClO) reaction but surprisingly also 1O2-absent Fe(II)/H2O2, UV/H2O2, and ferrate [Fe(VI)] process with even stronger intensities. By taking advantage of characteristic between 9,10-diphenyl-anthracene near-infrared phosphorescent emission 1O2, was excluded Fe(VI) process. The false detection ascribed direct piperidyl radical by reactive species [e.g., •OH Fe(VI)/Fe(V)/Fe(IV)] via transfer, followed molecular addition (forming a piperidylperoxyl radical) back generate nitroxide radical, as evidenced successful identification intermediate at 100 K theoretical calculations. Moreover, compared highly oxidative (e.g., high-valence Fe), much lower reactivity profound nonradiative relaxation H2O resulted it too selective inefficient organic contaminant destruction. This study demonstrated that EPR-based could be remarkably misled common thereby jeopardize understandings on 1O2.

Language: Английский

Citations

83

Singlet oxygen in environmental catalysis: Mechanisms, applications and future directions DOI
Zheng Qi, Xiaofeng Wu, Qin Li

et al.

Coordination Chemistry Reviews, Journal Year: 2025, Volume and Issue: 529, P. 216439 - 216439

Published: Jan. 16, 2025

Language: Английский

Citations

4

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

Yukun Pan,

Jiazhen Cao,

Mingyang Xing

et al.

ACS ES&T Engineering, Journal Year: 2023, Volume and Issue: 4(1), P. 19 - 46

Published: Aug. 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.

Language: Английский

Citations

30

Coupling N-doping and confined Co3O4 on carbon nanotubes by polydopamine coating strategy for pleiotropic water purification DOI

Wenlong Tu,

Gang Wang, Yue Zhang

et al.

Rare Metals, Journal Year: 2024, Volume and Issue: 43(7), P. 3146 - 3160

Published: April 3, 2024

Language: Английский

Citations

13

Non-radical oxidation driven by iron-based materials without energy assistance in wastewater treatment DOI

Yifeng Zeng,

Dongqin He,

Jianqiang Sun

et al.

Water Research, Journal Year: 2024, Volume and Issue: 264, P. 122255 - 122255

Published: Aug. 16, 2024

Language: Английский

Citations

9

N-Doped Co–Mn/C Dual Metal Oxide as an Activator of Peroxymonosulfate Considering Radical and Nonradical Pathways DOI
Li-Ming Sun, Bin Li, Ang Li

et al.

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(10), P. 11386 - 11400

Published: May 9, 2024

The Mn–Co dual-metal oxide is recognized as an effective activator for peroxymonosulfate (PMS), but its activation mechanism remains controversial. In this study, a Co/Mn–C–N (CMCN) nanocatalyst was synthesized using simple pyrolysis method, and catalytic activity along with the PMS comprehensively explored. findings indicated that synergistic effect of Mn Co within bimetallic composition significantly enhanced efficiency CMCN compared to those individual metal oxides (Mn–C–N Co–C–N). Bisphenol A underwent successful degradation 3 min in neutral environment, kinetic rate 1.59 min–1 total organic carbon removal 63.8%. Moreover, nanoparticles demonstrated remarkable stability reusability, maintaining their efficacy over four cycles. Employing series experiments analytical characterizations, novel proposed, involving both radical nonradical pathways. This involves oxidation pollutants through direct electron transfer process from metastable intermediate complexes. Notably, CMCN/PMS system exhibited robust resistance interference factors. research provides insights into development composites recalcitrant water pollutants.

Language: Английский

Citations

8

Progress in the Elimination of Organic Contaminants in Wastewater by Activation Persulfate over Iron-Based Metal–Organic Frameworks DOI Creative Commons
Keke Zhi, Jiajun Xu, Li Shi

et al.

Nanomaterials, Journal Year: 2024, Volume and Issue: 14(5), P. 473 - 473

Published: March 5, 2024

The release of organic contaminants has grown to be a major environmental concern and threat the ecology water bodies. Persulfate-based Advanced Oxidation Technology (PAOT) is effective at eliminating hazardous pollutants an extensive spectrum applications. Iron-based metal-organic frameworks (Fe-MOFs) their derivatives have exhibited great advantages in activating persulfate for wastewater treatment. In this article, we provide comprehensive review recent research progress on significant potential Fe-MOFs removing antibiotics, dyes, phenols, other from aqueous environments. Firstly, multiple approaches preparing Fe-MOFs, including MIL ZIF series were introduced. Subsequently, removal performance such as antibiotics sulfonamides tetracyclines (TC), dyes rhodamine B (RhB) acid orange 7 (AO7), phenols phenol bisphenol A (BPA) by various was compared. Finally, different degradation mechanisms, encompassing free radical pathways non-free elucidated. This explores synthesis methods application bodies, providing insights further refining preparation Fe-MOFs.

Language: Английский

Citations

7

Construction of Fenton-like systems based on hierarchical nanoconfinement for efficient antibiotic removal DOI

Lin-Lin Su,

Weisheng Hu, Xin He

et al.

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 116427 - 116427

Published: March 1, 2025

Language: Английский

Citations

0

Molybdenum incorporated cobalt ferrite nanoparticles as heterogeneous activators of peroxymonosulfate for efficient rhodamine B degradation: Catalytic studies and mechanistic investigations DOI

Amala Shaliya Joseph,

Reshma Karayat,

Suni Vasudevan

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162578 - 162578

Published: April 1, 2025

Language: Английский

Citations

0

Synchronous decomplexation and mineralization of copper complexes by activating peroxymonosulfate with magnetic bimetallic biochar derived from municipal sludge DOI

Jinxi Xie,

Zhijie Liang, Jingrui Zhang

et al.

Chemosphere, Journal Year: 2023, Volume and Issue: 338, P. 139358 - 139358

Published: June 26, 2023

Language: Английский

Citations

6