Fe–Mn bimetallic catalyst to activate peroxymonosulfate (PMS) for efficient degradation of tetracycline: Mechanism insights and application for pharmaceutical wastewater

Journal of Cleaner Production, Год журнала: 2024, Номер 445, С. 141365 - 141365

Опубликована: Фев. 21, 2024

Язык: Английский

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Peroxymonosulfate (PMS) activated by magnetic Fe3O4 doped carbon quantum dots (CQDs) for degradation of Rhodamine B (RhB) under visible light: DFT calculations and mechanism analysis

Journal of Cleaner Production, Год журнала: 2023, Номер 426, С. 139202 - 139202

Опубликована: Окт. 5, 2023

Язык: Английский

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Selective degradation of organic pollutants by highly dispersed Fe, Ni anchored on nitrogen carbon activating persulfate system: Electron transfer promotion, the impact of pollutant redox and adsorption properties

Chemical Engineering Journal, Год журнала: 2024, Номер 490, С. 151585 - 151585

Опубликована: Апрель 23, 2024

Язык: Английский

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Unlocking the unique catalysts of CoTiO3/BiVO4@MIL-Fe(53) for improving Cr(VI) reduction and tetracycline degradation

Carbon Neutrality, Год журнала: 2024, Номер 3(1)

Опубликована: Июнь 1, 2024

Abstract Environmental contamination by hexavalent chromium (Cr(VI)) and antibiotic drug residues pose significant challenges to public health ecosystems. This study investigates the application of CoTiO 3 /BiVO 4 @MIL-Fe(53) (CT/BV@Fe-MOF) for reduction Cr(VI) degradation tetracycline (TCL) under visible light. After grafting an iron-based metal–organic framework MIL-Fe(53) on a modified composite, photogenerated electrons could easily be transferred from BiVO /Fe-MOF species via interfacial charge transfer. UV–vis diffuse reflectance spectroscopy showed that carriers were formed in response light absorption. The effect different operating parameters, including catalyst load, pH, initial Cr(VI), TCL concentration, was systematically evaluated during photocatalytic process. CT/BV@Fe-MOF composite exhibited 98.7% efficiency (50 ppm) 97.5% towards (30 within 90 min, resulting greater than pristine , Fe-MOF materials. displayed excellent stability over six cycles, highlighting its potential practical applications. In addition, plausible pathway using LC-ESI/MS analysis, while TEST program utilized investigate toxicity products generated

Язык: Английский

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Transformation of metoprolol in UV/PDS process: Role and mechanisms of degradation and polymerization

Journal of Hazardous Materials, Год журнала: 2024, Номер 472, С. 134498 - 134498

Опубликована: Апрель 30, 2024

Язык: Английский

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Amino-functionalized Fe/Co bimetallic MOFs for accelerated Fe (III)/Fe (II) cycling and efficient degradation of sulfamethoxazole in Fenton-like system

Frontiers in Chemistry, Год журнала: 2025, Номер 13

Опубликована: Март 25, 2025

Metal-organic frameworks (MOFs) are recognized as important Fenton-like materials for environmental remediation. However, their applications often hindered by slow cycling between Fe (III) and (II). This study aimed to address the (III)/Fe (II) limitation of Fe-MOFs through dual modification strategy: bimetallic amino functionalization. A series NH2-MOF(Fe, Co) catalysts with varying Fe/Co ratios were synthesized via a hydrothermal method evaluated sulfamethoxazole (SMX) degradation. The optimized catalyst (Fe/Co ratio = 7:3) exhibited substantially enhanced catalytic performance, SMX removal rate constant in H2O2 system being 3.2 43.5 times higher than those Fe-MOF/H2O2 system, respectively. demonstrated robust performance across wide pH range (3.05-7.00), addressing common systems. Physicochemical characterization revealed that was attributed two key factors: synergistic effect Co active center, improved electron transfer central metal due -NH2 These modifications effectively addressed redox limitation. proposed reaction mechanism provides insights into degradation pathways Co)/H2O2 system. presents an efficient stable MOF-based potential wastewater treatment

Язык: Английский

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One-step calcination of Ni/Co/Mn ternary catalysts from spent lithium-ion batteries for iopamidol degradation via peroxymonosulfate activation

Journal of Water Process Engineering, Год журнала: 2024, Номер 59, С. 104996 - 104996

Опубликована: Фев. 17, 2024

Язык: Английский

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Effect on the adsorption performance and mechanism of antibiotics tetracyclines by the magnetic biochar used peanut shells as raw materials

Materials Research Express, Год журнала: 2024, Номер 11(4), С. 045508 - 045508

Опубликована: Март 22, 2024

Abstract Widespread environmental pollution caused by the misuse of tetracyclines (TCs) has become a global issue, necessitating development water treatment materials for antibiotic removal. Magnetic biochar (MBC) possesses several advantages, including wide range raw material sources and low cost, making it potential adsorbent that overcomes limitations (BC) regarding solid–liquid separation. In this study, peanut shell-derived magnetic loaded with Fe 3 O 4 (Fe /BC) was prepared to study its adsorption performance factors TCs. The mechanism revealed using isotherms, kinetics thermodynamics. results showed total pore volume increased, surface oxygen-containing functional groups were formed before BC modification. pH range, /BC high TCs, an rate over 85%. Chemical main mechanism, hydrogen bonding, as well π - interactions, electrostatic intrapore diffusion hydrophobic interactions. Moreover, reusability obtaining cost analyzed, demonstrating promising application prospects. This will promote in removal antibiotics pollutants from water.

Язык: Английский

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The interfacial electric field enhanced piezo-catalytic performance of Bi2S3/Ni/CN composites for peroxymonosulfate activation advanced oxidation processes (AOP) systems

Journal of Alloys and Compounds, Год журнала: 2024, Номер 994, С. 174645 - 174645

Опубликована: Апрель 30, 2024

Язык: Английский

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Mechanisms and degradation pathways of tetracycline by Co7Fe3 nanoparticles anchored porous carbon activated peroxymonosulfate

Journal of Alloys and Compounds, Год журнала: 2024, Номер unknown, С. 177181 - 177181

Опубликована: Окт. 1, 2024

Язык: Английский

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