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Li N, Wang J, Liao T, Ma B, Chen Y, Li Y, Fan X, Peng W. Facilely tuning the coating layers of Fe nanoparticles from iron carbide to iron nitride for different performance in Fenton-like reactions. J Colloid Interface Sci 2024; 672:688-699. [PMID: 38865882 DOI: 10.1016/j.jcis.2024.06.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2024] [Revised: 05/25/2024] [Accepted: 06/04/2024] [Indexed: 06/14/2024]
Abstract
In this study, a series of Fe-based materials are facilely synthesized using MIL-88A and melamine as precursors. Changing the mass ratio of melamine and MIL-88A could tune the coating layers of generated zero-valent iron (Fe0) particles from Fe3C to Fe3N facilely. Compared to Fe/Fe3N@NC sample, Fe/Fe3C@NC exhibits better catalytic activity and stability to degrade carbamazepine (CBZ) with peroxymonosulfate (PMS) as oxidant. Free radical quenching tests, open-circuit potential (OCP) test and electron paramagnetic resonance spectra (EPR) prove that hydroxyl radicals (OH) and superoxide radical (O2-) are dominant reactive oxygen species (ROSs) with Fe/Fe3C@NC sample. For Fe/Fe3N@NC sample, the main ROSs are changed into sulfate radicals (SO4-) and high valent iron-oxo (Fe (IV)=O) species. In addition, the better conductivity of Fe3C is beneficial for the electron transfer from Fe0 to the Fe3C, thus could keep the activity of the surface sites and obtain better stability. DFT calculation reveals the better adsorption and activation ability of Fe3C than Fe3N. Moreover, PMS can also be adsorbed on the Fe sites of Fe3N with shorter FeO bonds and longer SO bonds than on Fe3C, the Fe (IV)=O is thus present in the Fe/Fe3N@NC/PMS system. This study provides a novel strategy for the development of highly active Fe-based materials for Fenton-like reactions and thus could promote their real application.
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Affiliation(s)
- Ningyuan Li
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
| | - Jun Wang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
| | - Tao Liao
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
| | - Biao Ma
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
| | - Ying Chen
- Department of Chemical Engineering, Tianjin Renai College, Tianjin 301636, China
| | - Yang Li
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China; Zhejiang Institute of Tianjin University, Shaoxing, Zhejiang 312300, China
| | - Xiaobin Fan
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China; Zhejiang Institute of Tianjin University, Shaoxing, Zhejiang 312300, China
| | - Wenchao Peng
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China; Zhejiang Institute of Tianjin University, Shaoxing, Zhejiang 312300, China.
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Zhao R, Chen D, Liu H, Tian H, Li R, Huang Y. FePO 4/WB as an efficient heterogeneous Fenton-like catalyst for rapid removal of neonicotinoid insecticides: ROS quantification, mechanistic insights and degradation pathways. JOURNAL OF HAZARDOUS MATERIALS 2024; 476:135068. [PMID: 39002487 DOI: 10.1016/j.jhazmat.2024.135068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 06/26/2024] [Accepted: 06/27/2024] [Indexed: 07/15/2024]
Abstract
Iron-based catalysts for peroxymonosulfate (PMS) activation hold considerable potential in water treatment. However, the slow conversion of Fe(III) to Fe(II) restricts its large-scale application. Herein, an iron phosphate tungsten boride composite (FePO4/WB) was synthesized by a simple hydrothermal method to facilitate the Fe(III)/Fe(II) redox cycle and realize the efficient degradation of neonicotinoid insecticides (NEOs). Based on electron paramagnetic resonance (EPR) characterization, scavenging experiments, chemical probe approaches, and quantitative tests, both radicals (HO• and SO4⋅-) and non-radicals (1O2 and Fe(IV)) were produced in the FePO4/WB-PMS system, with relative contributions of 3.02 %, 3.58 %, 6.24 %, and 87.16 % to the degradation of imidacloprid (IMI), respectively. Mechanistic studies revealed that tungsten boride (WB) promoted the reduction of FePO4, and the generated Fe(II) dominantly activated PMS through a two-electron transfer to form Fe(IV), while a minority of Fe(II) engaged in a one-electron transfer with PMS to produce SO4⋅-, HO•, and 1O2. In addition, four degradation pathways of NEOs were proposed by analyzing the byproducts using UPLC-Q-TOF-MS/MS. Besides, seed germination experiments revealed the biotoxicity of NEOs was significantly reduced after degradation via the FePO4/WB-PMS system. Meanwhile, the recycling experiments and continuous flow reactor experiments showed that FePO4/WB exhibited high stability. Overall, this study provided a new perspective on water remediation by Fenton-like reaction. ENVIRONMENTAL IMPLICATION: Neonicotinoids (NEOs) are a type of insecticide used widely around the world. They've been found in many aquatic environments, raising concerns about their possible negative effects on the environment and health. Iron-based catalysts for peroxymonosulfate (PMS) activation hold great promise for water purification. However, the slow conversion of Fe(III) to Fe(II) restricts its large-scale application. Herein, iron phosphate tungsten boride composite (FePO4/WB) was synthesized by a simple hydrothermal method to facilitate the Fe(III)/Fe(II) redox cycle and realize the efficient degradation of NEOs. The excellent stability and reusability provided a great prospect for water remediation.
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Affiliation(s)
- Rongrong Zhao
- College of Hydraulic & Environmental Engineering, China Three Gorges University, Yichang 443002, China; Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang 443002, China
| | - Danyi Chen
- College of Hydraulic & Environmental Engineering, China Three Gorges University, Yichang 443002, China; Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang 443002, China
| | - Honglin Liu
- College of Hydraulic & Environmental Engineering, China Three Gorges University, Yichang 443002, China; Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang 443002, China.
| | - Hailin Tian
- Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang 443002, China; College of Materials and Chemical Engineering, China Three Gorges University, Yichang 443002, China
| | - Ruiping Li
- College of Hydraulic & Environmental Engineering, China Three Gorges University, Yichang 443002, China; Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang 443002, China
| | - Yingping Huang
- College of Hydraulic & Environmental Engineering, China Three Gorges University, Yichang 443002, China; Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang 443002, China.
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Hjiri M, Bujaldón R, Lloreda J, Gómez E, Serrà A. Advanced degradation of organic pollutants using sonophotocatalytic peroxymonosulfate activation with CoFe 2O 4/Cu- and Ce-doped SnO 2 composites. CHEMOSPHERE 2024; 354:141656. [PMID: 38467197 DOI: 10.1016/j.chemosphere.2024.141656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 02/21/2024] [Accepted: 03/05/2024] [Indexed: 03/13/2024]
Abstract
The rampant upsurge of organic pollutants in aqueous media has become one of the major concerns nowadays. Finding non-specific catalysts that can target a wide range of organic pollutants is a key challenge. Eco-friendly oxidative radicals, such as promoted by peroxymonosulfate (PMS), are necessary for efficient water decontamination. We propose a multicomponent composite catalyst for activating PMS using a dual strategy of sonophotocatalysis. The composite integrates cobalt ferrite and Cu- or Ce-doped SnO2, with the at. % of doping metal and the mixture ratio carefully balanced. The top-performing architectures were able to decompose rhodamine B (20 ppm), a representative pollutant, in under 3 min and achieve over 70% mineralization in just 5 min. The synthesized nanocomposites demonstrated exceptional sonophotocatalytic performance, even when treating complex and diverse multipollutant solutions (80 ppm), achieving over 75% mineralization after 150 min. Considering their high stability and reusability, the proposed CoFe2O4/Cu- and Ce-doped SnO2 materials are among the state-of-the-art heterogeneous catalysts for mineralizing organic pollutants through PMS activation.
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Affiliation(s)
- Mokhtar Hjiri
- Department of Physics, College of Sciences, Imam Mohammad Ibn Saud Islamic University (IMSIU), SA-11623, Riyadh, Saudi Arabia; Laboratory of Physics of Materials and Nanomaterials Applied at Environment (LaPhyMNE), Faculty of Sciences in Gabes, Gabes University, TNSA-6079, Gabes, Tunisia
| | - Roger Bujaldón
- Grup d'Electrodeposició de Capes Primes i Nanoestructures (GE-CPN), Departament de Ciència de Materials i Química Física, Universitat de Barcelona, Martí i Franquès, 1, E-08028, Barcelona, Catalonia, Spain; Institute of Nanoscience and Nanotechnology (IN2UB), Universitat de Barcelona, Martí i Franquès, 1, E-08028, Barcelona, Catalonia, Spain
| | - Judit Lloreda
- Grup d'Electrodeposició de Capes Primes i Nanoestructures (GE-CPN), Departament de Ciència de Materials i Química Física, Universitat de Barcelona, Martí i Franquès, 1, E-08028, Barcelona, Catalonia, Spain; Institute of Nanoscience and Nanotechnology (IN2UB), Universitat de Barcelona, Martí i Franquès, 1, E-08028, Barcelona, Catalonia, Spain
| | - Elvira Gómez
- Grup d'Electrodeposició de Capes Primes i Nanoestructures (GE-CPN), Departament de Ciència de Materials i Química Física, Universitat de Barcelona, Martí i Franquès, 1, E-08028, Barcelona, Catalonia, Spain; Institute of Nanoscience and Nanotechnology (IN2UB), Universitat de Barcelona, Martí i Franquès, 1, E-08028, Barcelona, Catalonia, Spain
| | - Albert Serrà
- Grup d'Electrodeposició de Capes Primes i Nanoestructures (GE-CPN), Departament de Ciència de Materials i Química Física, Universitat de Barcelona, Martí i Franquès, 1, E-08028, Barcelona, Catalonia, Spain; Institute of Nanoscience and Nanotechnology (IN2UB), Universitat de Barcelona, Martí i Franquès, 1, E-08028, Barcelona, Catalonia, Spain.
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Wen L, Li X, Na Y, Chen H, Liu M, Yang S, Ding D, Wang G, Liu Y, Chen Y, Chen R. Surface reconstructed Fe@C 1000 for enhanced Fenton-like catalysis: Sustainable ciprofloxacin degradation and toxicity reduction. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 345:123534. [PMID: 38342432 DOI: 10.1016/j.envpol.2024.123534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 01/25/2024] [Accepted: 02/07/2024] [Indexed: 02/13/2024]
Abstract
The Fe-based catalysts typically undergo severe problems such as deactivation and Fe sludge emission during the peroxymonosulfate (PMS) activation, which commonly leads to poor operation and secondary pollution. Herein, an S-doped Fe-based catalyst with a core-shell structure (Fe@CT, T = 1000°C) was synthesized, which can solve the above issues via the dynamic surface evolution during the reaction process. Specifically, the Fe0 on the surface of Fe@C1000 could be consumed rapidly, leaving numerous pores; the Fe3C from the core would subsequently migrate to the surface of Fe@C1000, replenishing the consumed active Fe species. The X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) analyses demonstrated that the reaction surface reconstructed during the PMS activation, which involved the FeIII in-situ reduction by S species as well as the depletion/replenishment of effective Fe species. The reconstructed Fe@C1000 achieved near-zero Fe sludge emission (from 0.59 to 0.08-0.23 mg L-1) during 5 cycles and enabled the dynamic evolution of dominant reactive oxygen species (ROS) from SO4·- to FeIVO, sustainably improving the oxidation capacity (80.0-92.5% in following four cycles) to ciprofloxacin (CIP) and reducing the toxicity of its intermediates. Additionally, the reconstructed Fe@C1000/PMS system exhibited robust resistance to complex water matrix. This study provides a theoretical guideline for exploring surface reconstruction on catalytic activity and broadens the application of Fe-based catalysts in the contaminants elimination.
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Affiliation(s)
- Lanxuan Wen
- Yanshan Earth Critical Zone and Surface Fluxes Research Station, College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiaoping Li
- Yanshan Earth Critical Zone and Surface Fluxes Research Station, College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yun Na
- Qinghai Provincial Ecological Environment Planning and Environmental Protection Technology Center, No. 116, Nanshan East Road, Xining, 810007, China
| | - Huanyu Chen
- Yanshan Earth Critical Zone and Surface Fluxes Research Station, College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Meng Liu
- Yanshan Earth Critical Zone and Surface Fluxes Research Station, College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Shengjiong Yang
- Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, No. 13, Yanta Road, Xi'an, Shanxi, 710055, China
| | - Dahu Ding
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Gen Wang
- Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, No. 13, Yanta Road, Xi'an, Shanxi, 710055, China
| | - Yu Liu
- Yanshan Earth Critical Zone and Surface Fluxes Research Station, College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yang Chen
- Yanshan Earth Critical Zone and Surface Fluxes Research Station, College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Rongzhi Chen
- Yanshan Earth Critical Zone and Surface Fluxes Research Station, College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China; State Key Laboratory of Organic Geochemistry and Guangdong Key Laboratory of Environmental Protection and Resources Utilization, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China.
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