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Wang S, Xu J, Hu S. Tannic acid-assisted upcycling of Cu from waste printed circuit boards to an efficient peroxymonosulfate catalyst for the degradation of organic pollutants. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 921:170877. [PMID: 38360310 DOI: 10.1016/j.scitotenv.2024.170877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 02/08/2024] [Accepted: 02/08/2024] [Indexed: 02/17/2024]
Abstract
The recovery of metals from solid waste for use as heterogeneous catalysts to activate peroxymonosulfate (PMS) for organic wastewater treatment is a promising, environmentally friendly and economical strategy. Herein, we present a facile and versatile strategy for upcycling copper (Cu) from waste printed circuit boards (PCBs) to Cu oxides supported on a three-dimensional carbon framework (10PCBs-Cu-TA) with the aid of tannic acid (TA). Compared to the PCBs-Cu synthesized without TA, introducing TA into 10PCBs-Cu-TA reduced Cu leaching, enhanced crystallinity, promoted electron transfer, and increased the number of oxygen vacancies. Moreover, 10PCBs-Cu-TA exhibited superior catalytic activity in activating PMS for the degradation of reactive brilliant blue KN-R, exceeding the activity of 10Cu-TA prepared using commercial Cu(NO3)2·3H2O. This enhanced performance may be attributed to the higher specific surface area and oxygen vacancies of 10PCBs-Cu-TA. The 10PCBs-Cu-TA/PMS system also exhibited broad catalytic universality and adaptability to various contaminants and water matrices. Quenching experiments, electron paramagnetic resonance analysis, and electrochemical measurements indicated that radical and non-radical processes jointly contributed to KN-R degradation. The proposed strategy for upcycling Cu from waste PCBs into functional materials provides novel insights into the utilization of solid waste and the development of PMS activators.
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Affiliation(s)
- Shuhua Wang
- College of Resources and Environmental Science, Quanzhou Normal University, 398 Donghai Road, Quanzhou 362000, China.
| | - Jinghua Xu
- College of Resources and Environmental Science, Quanzhou Normal University, 398 Donghai Road, Quanzhou 362000, China
| | - Sisi Hu
- College of Resources and Environmental Science, Quanzhou Normal University, 398 Donghai Road, Quanzhou 362000, China
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do Carmo Dias G, de Souza NCS, de Souza EIP, Puiatti GA, Moreira RPL. Enhanced degradation of Direct Red 80 dye via Fenton-like process mediated by cobalt ferrite: generated superoxide radicals and singlet oxygen. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:28025-28039. [PMID: 38523211 DOI: 10.1007/s11356-024-32976-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 03/14/2024] [Indexed: 03/26/2024]
Abstract
Azo dyes, widely used in the textile industry, contribute to effluents with significant organic content. Therefore, the aim of this work was to synthesize cobalt ferrite (CoFe2O4) using the combustion method and assess its efficacy in degrading the azo dye Direct Red 80 (DR80). TEM showed a spherical structure with an average size of 33 ± 12 nm. Selected area electron diffraction and XRD confirmed the presence of characteristic crystalline planes specific to CoFe2O4. The amount of Co and Fe metals were determined by ICP-OES, indicating an n(Fe)/n(Co) ratio of 2.02. FTIR exhibited distinct bands corresponding to Co-O (455 cm-1) and Fe-O (523 cm-1) bonds. Raman spectroscopy detected peaks associated with octahedral and tetrahedral sites. For the first time, the material was applied to degrade DR80 in an aqueous system, with the addition of persulfate. Consistently, within 60 min, these trials achieved nearly 100% removal of DR80, even after the material had undergone five cycles of reuse. The pseudo-second-order model was found to be the most fitting model for the experimental data (k2 = 0.07007 L mg-1 min-1). The results strongly suggest that degradation primarily occurred via superoxide radicals and singlet oxygen. Furthermore, the presence of UV light considerably accelerated the degradation process (k2 = 1.54093 L mg-1 min-1). The material was applied in a synthetic effluent containing various ions, and its performance consistently approached 100% in the photo-Fenton system. Finally, two degradation byproducts were identified through HPLC-MS/MS analysis.
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Affiliation(s)
- Gessica do Carmo Dias
- Departament of Chemistry, Universidade Federal de Viçosa (UFV), Av. Peter Henry Rolfs, S/N, Campus Universitário, Viçosa, MG, 36570-900, Brazil
| | - Noemi Cristina Silva de Souza
- Departament of Chemistry, Universidade Federal de Viçosa (UFV), Av. Peter Henry Rolfs, S/N, Campus Universitário, Viçosa, MG, 36570-900, Brazil
| | - Eduardo Israel Pimenta de Souza
- Departament of Chemistry, Universidade Federal de Viçosa (UFV), Av. Peter Henry Rolfs, S/N, Campus Universitário, Viçosa, MG, 36570-900, Brazil
| | - Gustavo Alves Puiatti
- Department of Civil Engineering, Universidade Federal de Viçosa (UFV), Av. Peter Henry Rolfs, S/N, Campus Universitário, Viçosa, MG, 36570-900, Brazil
| | - Renata Pereira Lopes Moreira
- Departament of Chemistry, Universidade Federal de Viçosa (UFV), Av. Peter Henry Rolfs, S/N, Campus Universitário, Viçosa, MG, 36570-900, Brazil.
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Ruan X, Wang H, Huang F, Wang F, Yang X. Degradation of 2, 4-dichlorophenol by peroxymonosulfate catalyzed by ZnO/ZnMn 2 O 4. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2024; 96:e10984. [PMID: 38298030 DOI: 10.1002/wer.10984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 12/29/2023] [Accepted: 01/06/2024] [Indexed: 02/02/2024]
Abstract
In this study, a highly efficient peroxymonosulfate (PMS) activator, ZnO/ZnMn2 O4 , was synthesized using a simple one-step hydrothermal method. The resulting bimetallic oxide catalyst demonstrated a homogenous and high-purity composition, showcasing synergistic catalytic activity in activating PMS for degrading 2, 4-dichlorophenol (2, 4-DCP) in aqueous solution. This catalytic performance surpassed that of individual ZnO, Mn2 O3 , and ZnMn2 O4 metal materials. Under the optimized conditions, the removal efficiency of 2, 4-DCP reached approximately 86% within 60 min, and the catalytic ability remained almost constant even after four cycles of recycling. The developed degradation system proved effective in degrading other azo-dye pollutants. Certain inorganic anions such as HPO4 - , HCO3 - , and NO3 - significantly inhibited the degradation of 2, 4-DCP, while Cl- and SO4 2- did not exhibit such interference. Results from electrochemical experiments indicated that the electron transfer ability of ZnO/ZnMn2 O4 surpassed that of individual metals, and electron transfer occurred between ZnO/ZnMn2 O4 and the oxidant. The primary active radicals responsible for degrading 2, 4-DCP were identified as SO4 •- , OH• and O2 •- , generated through the oxidation and reduction of PMS catalyzed by Zn (II) and Mn (III). Furthermore, X-ray photoelectron spectroscopy (XPS) analysis of the fresh and used catalysts revealed that the exceptional electron transfer ability of ZnO facilitated the valence transfer of Mn (III) and the transfer of electrons to the catalyst's oxygen surface, thus enhancing the catalytic efficiency. The analysis of radicals and intermediates indicates that the two main pathways for degrading 2, 4-DCP involve hydroxylation and radical attack on its aromatic ring. PRACTITIONER POINTS: A bimetallic ZnO/ZnMn2 O4 catalyst was synthesized and characterized. ZnO/ZnMn2 O4 can synergistically activate PMS to degrade 2, 4-DCP compared with single metal oxide. Three primary active radicals, O2 •- , • OH, and SO4 •- , were generated to promote the degradation. ZnO promoted electron transfer among the three species of Mn to facilitate oxidizing pollutants. Hydroxylation and radical attack on the aromatic ring of 2, 4-DCP are the two degradation pathways.
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Affiliation(s)
- Xinchao Ruan
- School of Environment Engineering, Wuhan Textile University, Wuhan, China
- Research Center for Clean Production of Textile Dyeing and Printing, Ministry of Education, Wuhan Textile University, Wuhan, China
| | - Huan Wang
- School of Environment Engineering, Wuhan Textile University, Wuhan, China
| | - Fengyun Huang
- School of Environment Engineering, Wuhan Textile University, Wuhan, China
| | - Fanye Wang
- School of Environment Engineering, Wuhan Textile University, Wuhan, China
| | - Xiaojun Yang
- School of Environment Engineering, Wuhan Textile University, Wuhan, China
- Research Center for Clean Production of Textile Dyeing and Printing, Ministry of Education, Wuhan Textile University, Wuhan, China
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El Allaoui B, Benzeid H, Zari N, Qaiss AEK, Bouhfid R. Cellulose beads supported CoFe 2O 4: A novel heterogeneous catalyst for efficient rhodamine B degradation via advanced oxidation processes. Int J Biol Macromol 2024; 259:128893. [PMID: 38159693 DOI: 10.1016/j.ijbiomac.2023.128893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 12/01/2023] [Accepted: 12/17/2023] [Indexed: 01/03/2024]
Abstract
In this study, a novel mechanical process was used to produce cellulose beads (CB). These beads were then doped with cobalt ferrite nanoparticles (CoFe2O4 NPs) to serve as catalysts for the degradation of rhodamine B (RhB) through peroxymonosulfate (PMS) activation. The physical and chemical properties of CoFe2O4 and CoFe2O4@CB catalysts were characterized using X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM) combined with energy dispersive X-ray spectrometer (EDX), scanning transmission electron microscopy (STEM) techniques, and thermogravimetric analysis (TGA). To optimize RhB degradation efficiency, Response Surface Methodology (RSM) was employed, utilizing the Box-Behnken design (BBD). Under the optimized conditions of a catalyst dosage of 0.40 g/L, PMS dosage of 0.98 mM, RhB concentration of 40 mg/L, pH of 5.27, and reaction time of 60 min, a remarkable degradation efficiency of 98.51 % was achieved at a temperature of 25 °C. In quenching experiments, 1O2, SO4•-, and HO• species are produced in the CoFe2O4@CB/PMS system, with 1O2, and SO4•- species dominating RhB degradation. Remarkably, the new CoFe2O4@CB catalyst has demonstrated exceptional stability and reusability, validated by recycling tests (up to 78 % of RhB degradation efficiency after a 5-cycle experiment) and subsequent characterizations (FTIR, SEM, and EDX) emphasizing unchanged bands, uniform distribution, and consistent composition after reuse cycles. These results demonstrate the effectiveness of mechanically produced CoFe2O4@CB catalysts for advanced oxidation processes (AOPs), with promising applications in wastewater treatment.
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Affiliation(s)
- Brahim El Allaoui
- Moroccan Foundation of Advanced Science Innovation and Research MAScIR, Composites and Nanocomposites Center, Rabat Design Center, Madinat Al Irfane, Rabat, Morocco; Laboratoire de Chimie Analytique, Faculté de Médecine et de Pharmacie, Université Mohammed V de Rabat, Rabat, Morocco; Mohammed VI Polytechnic University, Lot 660 Hay Moulay Rachid, Ben Guerir 43150, Morocco
| | - Hanane Benzeid
- Laboratoire de Chimie Analytique, Faculté de Médecine et de Pharmacie, Université Mohammed V de Rabat, Rabat, Morocco
| | - Nadia Zari
- Moroccan Foundation of Advanced Science Innovation and Research MAScIR, Composites and Nanocomposites Center, Rabat Design Center, Madinat Al Irfane, Rabat, Morocco; Mohammed VI Polytechnic University, Lot 660 Hay Moulay Rachid, Ben Guerir 43150, Morocco
| | - Abou El Kacem Qaiss
- Moroccan Foundation of Advanced Science Innovation and Research MAScIR, Composites and Nanocomposites Center, Rabat Design Center, Madinat Al Irfane, Rabat, Morocco; Mohammed VI Polytechnic University, Lot 660 Hay Moulay Rachid, Ben Guerir 43150, Morocco
| | - Rachid Bouhfid
- Moroccan Foundation of Advanced Science Innovation and Research MAScIR, Composites and Nanocomposites Center, Rabat Design Center, Madinat Al Irfane, Rabat, Morocco; Mohammed VI Polytechnic University, Lot 660 Hay Moulay Rachid, Ben Guerir 43150, Morocco.
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Fdez-Sanromán A, Rosales E, Pazos M, Sanromán A. One-pot synthesis of bimetallic Fe-Cu metal-organic frameworks composite for the elimination of organic pollutants via peroxymonosulphate activation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-30026-5. [PMID: 37853214 DOI: 10.1007/s11356-023-30026-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Accepted: 09/18/2023] [Indexed: 10/20/2023]
Abstract
A series of bimetallic of FeCu metal-organic frameworks (MOFs) have been synthesised using a solvothermal process by varying the ratio between the two metals. Further, the bimetallic MOF catalysts were characterised by X-ray powder diffraction, scanning electron microscopy, and infrared spectroscopy techniques. Their catalytic properties for activation of peroxymonosulphate (PMS) have been tested by the removal of a model dye, rhodamine B. As a result, NH2-Fe2.4Cu1-MOF demonstrated the highest degradation, the effect of the ratio NH2-Fe2.4Cu1-MOF/PMS has been studied, and the main reactive species have been assessed. The application of these MOFs in powder form is difficult to handle in successive batch or flow systems. Thus, this study assessed the feasibility of growing NH2-Fe2,4Cu1-MOF on polyacrylonitrile (PAN) spheres using the one-pot solvothermal synthesis method. The optimisation of the catalytic activity of the synthesised composite (NH2-Fe2.4Cu1-MOF@PAN) has been evaluated by response surface methodology using a central composite face-centred experimental design matrix and selecting as independent variables: time, PMS concentration, and catalyst dosage. Based on the results, the optimisation of the operational conditions has been validated. At 2.5 mM PMS, 90 min, and 1.19 g·L-1 of catalyst dosage, maximum degradation (80.92%) has been achieved, which doubles the removal values obtained in previous studies with other MOFs. In addition, under these conditions, the catalyst has been proven to maintain its activity and stability for several cycles without activity loss.
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Affiliation(s)
- Antía Fdez-Sanromán
- Department of Chemical Engineering, CINTECX, Universidade de Vigo, Campus Universitario As Lagoas-Marcosende, 36310, Vigo, Spain.
| | - Emilio Rosales
- Department of Chemical Engineering, CINTECX, Universidade de Vigo, Campus Universitario As Lagoas-Marcosende, 36310, Vigo, Spain
| | - Marta Pazos
- Department of Chemical Engineering, CINTECX, Universidade de Vigo, Campus Universitario As Lagoas-Marcosende, 36310, Vigo, Spain
| | - Angeles Sanromán
- Department of Chemical Engineering, CINTECX, Universidade de Vigo, Campus Universitario As Lagoas-Marcosende, 36310, Vigo, Spain
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Wang Q, Lu J, Yu M, Li H, Lin X, Nie J, Lan N, Wang Z. Sulfur vacancy rich MoS 2/FeMoO 4 composites derived from MIL-53(Fe) as PMS activator for efficient elimination of dye: Nonradical 1O 2 dominated mechanism. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 333:121990. [PMID: 37301457 DOI: 10.1016/j.envpol.2023.121990] [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: 03/25/2023] [Revised: 05/19/2023] [Accepted: 06/07/2023] [Indexed: 06/12/2023]
Abstract
A novel MoS2/FeMoO4 composite was synthesized for the first time by introducing an inorganic promoter MoS2 into the MIL-53(Fe)-derived PMS-activator. The prepared MoS2/FeMoO4 could effectively activate peroxymonosulfate (PMS) toward 99.7% of rhodamine B (RhB) degradation in 20 min, and achieve a kinetic constant of 0.172 min-1, which is 10.8, 43.0 and 3.9 folds higher than MIL-53, MoS2 and FeMoO4 components, respectively. Both Fe(II) and sulfur vacancies are identified as the main active sites on catalyst surface, where sulfur vacancies can promote adsorption and electron migration between peroxymonosulfate and MoS2/FeMoO4 to accelerate peroxide bond activation. Besides, the Fe(III)/Fe(II) redox cycle was improved by reductive Fe0, S2- and Mo(IV) species to further boost PMS activation and RhB degradation. Comparative quenching experiment and in-situ electron paramagnetic resonance (EPR) spectra verified that SO4•-, •OH, 1O2 and O2•- were produced in the MoS2/FeMoO4/PMS system, while 1O2 dominates RhB elimination. In addition, the influences of various reaction parameters on RhB removal were examined and the MoS2/FeMoO4/PMS system exhibits good performance over a wide pH and temperature range, as well as coexistence with common inorganic ions and humic acid (HA). This study provides a new strategy for preparing MOF-derived composite with simultaneous introduction of MoS2 promotor and rich sulfur vacancies, and enables new insight into radical/nonradical pathway in PMS activation process.
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Affiliation(s)
- Qiao Wang
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, China.
| | - Jiahong Lu
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, China.
| | - Meirui Yu
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, China.
| | - Huarui Li
- School of Civil Engineering, Yantai University, Yantai, 264005, PR China.
| | - Xinhong Lin
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, China.
| | - Jinxu Nie
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, China.
| | - Nan Lan
- Guangdong Jiuyu Engineering and Technology Consulting Co., Ltd, Guangzhou, 510635, PR China.
| | - Zhihong Wang
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, China.
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