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Dehvari M, Babaei AA, Esmaeili S. Amplification of oxidative elimination of atrazine by Ultrasound/Ultraviolet–assisted Sono/Photocatalyst using a spinel cobalt ferrite–anchored MWCNT as peroxymonosulfate activator. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2022.114452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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2
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Farmand M, Jahanpeyma F, Gholaminejad A, Azimzadeh M, Malaei F, Shoaie N. Carbon nanostructures: a comprehensive review of potential applications and toxic effects. 3 Biotech 2022; 12:159. [PMID: 35814038 PMCID: PMC9259781 DOI: 10.1007/s13205-022-03175-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 03/25/2022] [Indexed: 12/17/2022] Open
Abstract
There is no doubt that nanotechnology has revolutionized our life since the 1970s when it was first introduced. Nanomaterials have helped us to improve the current products and services we use. Among the different types of nanomaterials, the application of carbon-based nanomaterials in every aspect of our lives has rapidly grown over recent decades. This review discusses recent advances of those applications in distinct categories, including medical, industrial, and environmental applications. The first main section introduces nanomaterials, especially carbon-based nanomaterials. In the first section, we discussed medical applications, including medical biosensors, drug and gene delivery, cell and tissue labeling and imaging, tissue engineering, and the fight against bacterial and fungal infections. The next section discusses industrial applications, including agriculture, plastic, electronic, energy, and food industries. In addition, the environmental applications, including detection of air and water pollutions and removal of environmental pollutants, were vastly reviewed in the last section. In the conclusion section, we discussed challenges and future perspectives.
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Affiliation(s)
- Maryam Farmand
- Department of Biology, Tehran University, PO Box: 14155-6619, Tehran, Iran
| | - Fatemeh Jahanpeyma
- Department of Medical Biotechnology, Faculty of Medical Science, Tarbiat Modares University, P.O. Box: 14115-111, Tehran, Iran
| | - Alieh Gholaminejad
- Regenerative Medicine Research Center, Isfahan University of Medical Sciences, PO Box: 73461-81746, Isfahan, Iran
| | - Mostafa Azimzadeh
- Medical Nanotechnology and Tissue Engineering Research Center, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, PO Box: 89195-999, Yazd, Iran.,Stem Cell Biology Research Center, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, PO Box: 89195-999, Yazd, Iran.,Department of Advanced Medical Sciences and Technologies, School of Paramedicine, Shahid Sadoughi University of Medical Sciences, PO Box: 8916188635, Yazd, Iran
| | - Fatemeh Malaei
- Department of Medical Biotechnology, Faculty of Medical Science, Tarbiat Modares University, P.O. Box: 14115-111, Tehran, Iran
| | - Nahid Shoaie
- Department of Medical Biotechnology, Faculty of Medical Science, Tarbiat Modares University, P.O. Box: 14115-111, Tehran, Iran
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3
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A Taguchi approach with electron-beam irradiation to optimize the efficiency of removing enrofloxacin from aqueous media. KOREAN J CHEM ENG 2022. [DOI: 10.1007/s11814-021-0995-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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4
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Wu S, Zhao H, Tang Z, Zhang J. Fabrication of a multi-dimensional CoFeO x catalyst for the efficient catalytic oxidation elimination of o-dichlorobenzene. NEW J CHEM 2022. [DOI: 10.1039/d2nj01976k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Multi-dimensional CoFeOx/CoOx with a 2D/1D structure exhibited outstanding catalytic activity and thermal stability in the catalytic elimination of o-DCB.
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Affiliation(s)
- Shixing Wu
- School of Petroleum and Chemical, Lanzhou University of Technology, Lanzhou 730050, China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, and National Engineering Research Center for Fine Petrochemical Intermediates, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Haijun Zhao
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, and National Engineering Research Center for Fine Petrochemical Intermediates, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
- Yantai Zhongke Research Institute of Advanced Materials and Green Chemical Engineering, Shandong Laboratory of Yantai Advanced Materials and Green Manufacturing, Yantai, 264006, China
| | - Zhicheng Tang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, and National Engineering Research Center for Fine Petrochemical Intermediates, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
- Yantai Zhongke Research Institute of Advanced Materials and Green Chemical Engineering, Shandong Laboratory of Yantai Advanced Materials and Green Manufacturing, Yantai, 264006, China
| | - Jiyi Zhang
- School of Petroleum and Chemical, Lanzhou University of Technology, Lanzhou 730050, China
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5
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Zhao J, Xiao P, Han S, Zulhumar M, Wu D. Preparation of magnetic copper ferrite nanoparticle as peroxymonosulfate activating catalyst for effective degradation of levofloxacin. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2022; 85:645-663. [PMID: 35100145 DOI: 10.2166/wst.2021.627] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Magnetic CuFe2O4 nanoparticles were successfully synthesized with a coprecipitation method at 500 °C calcination temperature, and were utilized to degrade levofloxacin (LEV) as a peroxymonosulfate (PMS) activator. The structure and composition of the nanocatalyst were characterized by a series of methods, including scanning electron microscopy, X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, X-ray diffraction, vibrating sample magnetometer and thermogravimetric analysis. The effects of the PMS concentration, the catalyst dosage, the LEV initial concentration, the pH value and the inorganic anions on the LEV degradation were also explored. The results revealed that the designed CuFe2O4/PMS system had high activity and excellent stability in the complex conditions. The degradation efficiency of LEV still reached above 80% after four recycles of CuFe2O4 catalyst. The reactive species quenching experiments and electron paramagnetic resonance analysis suggested the existence of superoxide radicals, single oxygen, hydroxy radicals and sulfate radicals, and the first two were dominant radical oxygen species. Based on the mechanism analyses, the efficient degradation of LEV was probably due to the continuous generation of reactive species under the condition of Fe(III)/Fe(II) and Cu(II)/Cu(I) redox cycles. The research provided a reasonable reference for the PMS activation mechanism-based spinel-type ferrite catalysis.
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Affiliation(s)
- Jing Zhao
- College of Forestry, Northeast Forestry University, Harbin 150040, China E-mail:
| | - Pengfei Xiao
- College of Forestry, Northeast Forestry University, Harbin 150040, China E-mail:
| | - Shuang Han
- College of Forestry, Northeast Forestry University, Harbin 150040, China E-mail:
| | - Musajan Zulhumar
- College of Forestry, Northeast Forestry University, Harbin 150040, China E-mail:
| | - Dedong Wu
- College of Forestry, Northeast Forestry University, Harbin 150040, China E-mail:
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6
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Magnetic Co-Co Prussian blue analogue catalyst for peroxymonosulfate activation to degrade organic dye. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119468] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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7
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Alhamd M, Tabatabaie T, Parseh I, Amiri F, Mengelizadeh N. Magnetic CuNiFe 2O 4 nanoparticles loaded on multi-walled carbon nanotubes as a novel catalyst for peroxymonosulfate activation and degradation of reactive black 5. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:57099-57114. [PMID: 34085196 DOI: 10.1007/s11356-021-14590-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 05/24/2021] [Indexed: 06/12/2023]
Abstract
Novel copper-nickel ferrite nanocatalyst loaded on multi-walled carbon nanotube (MWCNTs-CuNiFe2O4) was synthesized and applied to activate peroxymonosulfate (PMS) in the degradation of the reactive black 5 (RB5). The structure of the catalyst was well characterized by scanning electron microscope (SEM), Fourier-transform infrared spectroscopy (FTIR), and X-ray powder diffraction (XRD). The MWCNTs-CuNiFe2O4/PMS system showed a high performance in the degradation of RB5 with a kinetic rate of 1.5-2.5 times higher than homogeneous and heterogeneous systems. Maximum degradation efficiency (99.60%) was obtained at an initial pH of 7, catalyst dosage of 250 mg/L, PMS dosage of 4 mM, the temperature of 25 °C, and reaction time of 15 min. Anion experiments emphasized that the presence of nitrate, carbonate, and phosphate in the solution reduced the degradation efficiency by producing reactive species with low oxidation potential. The RB5 degradation rate evolved with temperature, and the activation energy was obtained to be 44.48 kJ/mol. The mechanism of PMS activation and production of free radicals was proposed based on tert-butyl alcohol (TBA), ethanol (EtOH), and potassium iodide (KI) scavengers. Trapping experiments showed that both sulfate (SO4•-) and hydroxyl (•OH) radicals are involved in the catalytic degradation of RB5. The effective treatment of real wastewater and tap water by the MWCNTs-CuNiFe2O4/PMS system requires a long reaction time. Gas chromatography-mass spectrometry (GC-MS) analysis indicated that RB5 can be degraded via methylation, decarboxylation, hydroxylation, and ring/chain cleavage pathways. The stable catalytic activity after three consecutive cycles suggested that MWCNTs-CuFe2O4 is a novel reusability catalyst in PMS activation.
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Affiliation(s)
- Mehdi Alhamd
- Department of Environment, College of Environmental Engineering, Branch Bushehr, Islamic Azad University, Bushehr, Iran
| | - Tayebeh Tabatabaie
- Department of Environment, College of Environmental Engineering, Branch Bushehr, Islamic Azad University, Bushehr, Iran.
| | - Iman Parseh
- Department of Environmental Health Engineering, Behbahan Faculty of Medical Sciences, Behbahan, Iran.
| | - Fazel Amiri
- Department of Environment, College of Environmental Engineering, Branch Bushehr, Islamic Azad University, Bushehr, Iran
| | - Nezamaddin Mengelizadeh
- Department of Environmental Health Engineering, Faculty of Evaz Health, Research Center of Health, Safety and Environment, Larestan University of Medical Sciences, Larestan, Iran
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Balarak D, Mengelizadeh N, Rajiv P, Chandrika K. Photocatalytic degradation of amoxicillin from aqueous solutions by titanium dioxide nanoparticles loaded on graphene oxide. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:49743-49754. [PMID: 33942261 DOI: 10.1007/s11356-021-13525-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 03/15/2021] [Indexed: 05/27/2023]
Abstract
The photocatalytic degradation of amoxicillin (AMX) by titanium dioxide nanoparticles loaded on graphene oxide (GO/TiO2) was evaluated under UV light. Experimental results showed that key parameters such as initial pH, GO/TiO2 dosage, UV intensity, and initial AMX concentration had a significant effect on AMX degradation. Compared to the photolysis and adsorption processes, the AMX degradation efficiency was obtained to be more than 99% at conditions including pH of 6, the GO/TiO2 dosage of 0.4 g/L, the AMX concentration of 50 mg/L, and the intensity of 36 W. Trapping tests showed that all three hydroxyl radical (OH•), superoxide radical (O2•-), and hole (h+) were produced in the photocatalytic process; however, h+ plays a major role in AMX degradation. Under UV irradiation, GO/TiO2 showed excellent stability and recyclability for 4 consecutive reaction cycles. The analysis of total organic carbon (TOC) suggested that AMX could be well degraded into CO2 and H2O. The formation of NH4+, NO3-, and SO42- as a result of AMX degradation confirmed the good mineralization of AMX in the GO/TiO2/UV process. The toxicity of the inlet and outlet samples of the process has been investigated by cultivation of Escherichia coli and Streptococcus faecalis, and the results showed that the condition is suitable for the growth of organisms. The photocatalytic degradation mechanism was proposed based on trapping and comparative tests. Based on the results, the GO/TiO2/UV process can be considered as a promising technique for AMX degradation due to photocatalyst stability, high mineralization efficiency, and effluent low toxicity.
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Affiliation(s)
- Davoud Balarak
- Department of Environmental Health, Health Promotion Research Center, Zahedan University of Medical Sciences, Zahedan, Iran.
| | - Nezamaddin Mengelizadeh
- Research Center of Health, Safety and Environment, Department of Environmental Health Engineering, Evaz Faculty of Health, Larestan University of Medical Sciences, Larestan, Iran
| | - Periakaruppan Rajiv
- Department of Biotechnology, Karpagam Academy of Higher Education, Eachanari post, Coimbatore, Tamil Nadu, 641021, India
| | - Kethineni Chandrika
- Department of Biotechnology, Koneru Lakshmaiah Education Foundation, Vaddeswaram, Guntur, AP, 52250, India.
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9
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Tang S, Zhao M, Yuan D, Li X, Wang Z, Zhang X, Jiao T, Ke J. Fe 3O 4 nanoparticles three-dimensional electro-peroxydisulfate for improving tetracycline degradation. CHEMOSPHERE 2021; 268:129315. [PMID: 33352517 DOI: 10.1016/j.chemosphere.2020.129315] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 11/10/2020] [Accepted: 12/12/2020] [Indexed: 06/12/2023]
Abstract
In this work, Fe3O4 nanoparticle employed as the three-dimensional electrode, were introduced into the electro-oxidation system with peroxydisulfate to improve the tetracycline (TC) degradation. The coprecipitation method prepared Fe3O4 was proved to be the irregular sphere-like form through the characterizations of XRD, SEM, N2 adsorption isotherms, and XPS. By the contrast experiments, the EO-Fe3O4-PDS exhibited the outstanding TC degradation capability, which achieved 86.53% after 60 min treatment with current intensity of 20 mA cm-2, Fe3O4 dose of 0.2 g L-1, PDS amount of 2 mmol L-1, initial pH 4.5, and TC concentration of 25 mg L-1. Besides, the influence of current intensity, Fe3O4 dosage, PDS concentration, and beginning pH on the TC degradation was investigated systemically. The consecutive five recycles of Fe3O4 demonstrated that a favorable stability for the coupling process. The EO-Fe3O4-PDS could improve the PDS decomposition and H2O2 production. The sulfate and hydroxyl radicals both took charge of the antibiotic degradation as certified by scavenger test. The TC degradation evolution was presented based on the HPLC-MS analyses of degradation byproducts.
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Affiliation(s)
- Shoufeng Tang
- Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China; State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, PR China
| | - Mengzhen Zhao
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, PR China
| | - Deling Yuan
- Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China; State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, PR China.
| | - Xue Li
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, PR China
| | - Zetao Wang
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, PR China
| | - Xiaoyu Zhang
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, PR China
| | - Tifeng Jiao
- Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China; State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, PR China.
| | - Jun Ke
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430074, PR China
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Mengelizadeh N, Mohseni E, Dehghani MH. Heterogeneous activation of peroxymonosulfate by GO-CoFe2O4 for degradation of reactive black 5 from aqueous solutions: Optimization, mechanism, degradation intermediates and toxicity. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.114838] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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11
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Lin Y, Mo X, Zhang Y, Nie M, Yan C, Wu L. Selective degradation of acetaminophen from hydrolyzed urine by peroxymonosulfate alone: performances and mechanisms. RSC Adv 2021; 11:40022-40032. [PMID: 35494137 PMCID: PMC9044530 DOI: 10.1039/d1ra07891g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 12/02/2021] [Indexed: 11/29/2022] Open
Abstract
Owing to the high concentration of pharmaceuticals in urine, the degradation of these organic pollutants before their environmental release is highly desired. Peroxymonosulfate (PMS) is a desirable oxidant that can be applied to environmental remediation; however, the performance and mechanism of PMS for the degradation of pharmaceuticals in the urine matrix have not been investigated. Herein, PMS was first discovered to efficiently degrade typical pharmaceuticals in hydrolyzed urine (HU) by selecting acetaminophen (ACE) as a target compound. Quenching experiments revealed that singlet oxygen (1O2) and hydroxyl radicals (HO˙) were observed in the HU/PMS system, but the principal reactive species (RS) responsible for ACE removal was 1O2. The major constituents of HU, including SO42− and organics (creatine, creatinine and hippuric acid), hardly affected the elimination of ACE, whereas Cl−, H2PO4− and NH4+ would accelerate ACE degradation. Besides, HCO3− slightly inhibited this process. The ACE degradation efficiency was enhanced using photo-irradiation, including sunlight and visible light, although increasing the reaction temperature could, interestingly, hardly accelerate the degradation rate of ACE. Three-dimensional excitation–emission matrices (3D-EEMs) have indicated that other intermediates that have a higher fluorescence intensity might be generated in the HU/PMS system. Finally, nine intermediate products were determined and the degradation pathways of ACE were proposed. Overall, the results of this study illustrated that PMS is an efficient oxidant for the degradation of ACE in HU. Owing to the high concentration of pharmaceuticals in urine, the degradation of these organic pollutants before their environmental release is highly desired.![]()
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Affiliation(s)
- Yiting Lin
- School of Geography and Environment, Key Laboratory of Poyang Lake Wetland and Watershed Research, Ministry of Education, Jiangxi Normal University, Nanchang 330022, China
| | - Xiting Mo
- School of Geography and Environment, Key Laboratory of Poyang Lake Wetland and Watershed Research, Ministry of Education, Jiangxi Normal University, Nanchang 330022, China
| | - Yamin Zhang
- School of Geography and Environment, Key Laboratory of Poyang Lake Wetland and Watershed Research, Ministry of Education, Jiangxi Normal University, Nanchang 330022, China
| | - Minghua Nie
- School of Geography and Environment, Key Laboratory of Poyang Lake Wetland and Watershed Research, Ministry of Education, Jiangxi Normal University, Nanchang 330022, China
- Key Laboratory of Eco-geochemistry, Ministry of Natural Resource, Beijing 100037, China
| | - Caixia Yan
- School of Geography and Environment, Key Laboratory of Poyang Lake Wetland and Watershed Research, Ministry of Education, Jiangxi Normal University, Nanchang 330022, China
| | - Leliang Wu
- School of Geography and Environment, Key Laboratory of Poyang Lake Wetland and Watershed Research, Ministry of Education, Jiangxi Normal University, Nanchang 330022, China
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Mohammadi Amini M, Mengelizadeh N. Catalytic degradation of mefenamic acid by peroxymonosulfate activated with MWCNTs-CoFe 2O 4: influencing factors, degradation pathway, and comparison of activation processes. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:45324-45335. [PMID: 32789633 DOI: 10.1007/s11356-020-10427-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 08/06/2020] [Indexed: 06/11/2023]
Abstract
The cobalt ferrite loaded on multi-walled carbon nanotubes (MWCNTs-CoFe2O4) was synthesized and used as a novel catalyst for the degradation of mefenamic acid (MFA) in the presence of peroxymonosulfate (PMS). The results showed that MWCNTs-CoFe2O4 has higher catalytic performance in the activation of PMS and degradation of MFA compared with MWCNTs, Co2+, Fe2+, and CoFe2O4. The highest kinetic constant rate (0.0198 min-1) and MFA degradation (97.63%) were obtained at pH = 7, PMS = 4 mM, catalyst = 500 mg/L, MFA = 10 mg/L, and time = 150 min. MFA degradation accelerated with increasing PMS and catalyst dosage but decreased by initial pH. The influence of different anions and water matrix on the catalytic system was investigated, and the results explained a decrease in the MFA rate in the presence of the interfering substances. Scavenging experiments showed that both sulfate radical anion (SO4•-) and hydroxyl radical (•OH) were effective on MFA degradation, but SO4•- had a greater effect on the degradation of MFA. In addition, the stability and recyclability of MWCNTs-CoFe2O4 were evaluated in the consecutive reaction cycle; the MFA degradation rate reached 89.75% after 4 cycles of reaction. The MFA degradation products were identified by gas chromatography-mass spectrometry (GC-MS) and their degradation pathway was suggested. Finally, a comparison was conducted among the methods used for PMS activation, and the results showed that the cobalt ferrite-based catalyst has high degradation efficiency. However, ultrasound, heat, and ultraviolet (UV) processes can be used to improve the degradation rate of the MWCNTs-CoFe2O4/PMS system at different reaction times.
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Affiliation(s)
- Maryam Mohammadi Amini
- Department of Environmental Health Engineering, School of Public Health, Alborz University of Medical Sciences, Karaj, Iran
| | - Nezamaddin Mengelizadeh
- Research Center of Health, Safety and Environment, Department of Environmental Health Engineering, Faculty of Evaz Health, Larestan University of Medical Sciences, Lar, Larestan, Iran.
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Ashrafi S, Mengelizadeh N, Dadban Shahamat Y, Zare MR, Jalil M, Berizi Z, Shooshtarian MR, Parvizimehr A, Zolghadr R. Multi-walled carbon nanotubes-CoFe 2 O 4 nanoparticles as a reusable novel peroxymonosulfate activator for degradation of Reactive Black 5. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2020; 92:969-974. [PMID: 31904156 DOI: 10.1002/wer.1291] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2019] [Revised: 11/27/2019] [Accepted: 12/10/2019] [Indexed: 06/10/2023]
Abstract
In this study, CoFe2 O4 nanoparticles supported on multi-walled carbon nanotubes (MWCNTs), as novel peroxymonosulfate (PMS) activator, were synthesized for degradation of Reactive Black 5 (RB5). The results showed that the maximum removal efficiencies of RB5 (100%), chemical oxygen demand (83.12%), and total organic carbon (65.5%) could happen at pH of 7, catalyst dosage of 100 mg/L, PMS dosage of 2 mM, RB5 concentration of 50 mg/L, and time of 30 min. The results of the temperature effect showed that the activation energy (Ea = 20.92 kJ/mol) for the synthesized catalyst is much lower compared to other studies. The PMS/MWCNTs-CoFe2 O4 system had higher decolorization efficiency and kinetic rates compared to other adsorption and oxidation systems. Quenching experiments proved that RB5 was degraded by sulfate and hydroxyl radicals. The MWCNTs-CoFe2 O4 catalyst showed suitable stability and reusability even after five consecutive catalytic reactions. The continuous treatment of RB5 in real water resources was performed using catalyst packed in a column reactor, and its results showed the high efficiency of the column in the catalytic treatment of the dye at long reaction time. Based on the proposed degradation pathway, the azo bands and the naphthalene structure of RB5 are oxidized to compounds with low molecular weight. PRACTITIONER POINTS: MWCNTs-CoFe2 O4 was used as a novel recyclable catalyst for the activation of peroxymonosulfate and dye degradation. The rate of dye degradation and peroxymonosulfate activation by MWCNTs-CoFe2 O4 was much higher than that of the catalysts alone. Radical SO 4 · - , with contribution percentage of 73.20%, was the main agent for degradation of Reactive Black 5 dye. MWCNTs-CoFe2 O4 in the dye degradation process showed excellent stability and reusability, lower activation energy, and easier separation. The dye degradation products were identified by gas chromatography and UV-vis spectrophotometric analyses, and their degradation pathway was suggested.
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Affiliation(s)
- Sara Ashrafi
- Department of Environmental Health, Health Sciences Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - Nezamaddin Mengelizadeh
- Department of Environmental Health Engineering, Faculty of Evaz Health, Research Center of Health, Safety and Environment, Larestan University of Medical Sciences, Larestan, Iran
| | - Yousef Dadban Shahamat
- Department of Environmental Health Engineering, Faculty of Health, Environmental Health Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | - Mohammad Reza Zare
- Department of Environmental Health Engineering, Faculty of Evaz Health, Larestan University of Medical Sciences, Larestan, Iran
| | - Mohammad Jalil
- Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Zohreh Berizi
- Department of Environmental Health Engineering, Faculty of Evaz Health, Larestan University of Medical Sciences, Larestan, Iran
| | - Mohammad Reza Shooshtarian
- Department of Environmental Health Engineering, Faculty of Evaz Health, Larestan University of Medical Sciences, Larestan, Iran
| | - Ali Parvizimehr
- Department of Environmental Health Engineering, Faculty of Evaz Health, Larestan University of Medical Sciences, Larestan, Iran
| | - Razieh Zolghadr
- Department of Health Education and Promotion, Faculty of Evaz Health, Larestan University of Medical Sciences, Larestan, Iran
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14
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Jang J, Shahzad A, Woo SH, Lee DS. Magnetic Ti 3C 2T x (Mxene) for diclofenac degradation via the ultraviolet/chlorine advanced oxidation process. ENVIRONMENTAL RESEARCH 2020; 182:108990. [PMID: 31816586 DOI: 10.1016/j.envres.2019.108990] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 11/12/2019] [Accepted: 11/30/2019] [Indexed: 06/10/2023]
Abstract
In this study, a magnetic titanium carbide (Ti3C2Tx) MXene was synthesized through a one-step chemical co-precipitation method using ammonium bifluoride as a mild etchant and was investigated for photocatalytic degradation of diclofenac (DCF) via the ultraviolet (UV)/chlorine process. The DCF degradation was enhanced by the generation of active radicals such as the hydroxyl radical and reactive chlorine species compared with that resulting from UV and chlorination treatment alone as well as UV/H2O2 processes at pH 7. The first-order rate constant of the UV/chlorine process was 0.1025 min-1, which is 12.7 and 6.8 times higher than those of the only UV and UV/H2O2 processes, respectively. Magnetic nanoparticles on the surfaces of Ti3C2Tx sheets not only enhanced the adsorption capacity of the synthesized composite but also increased the rate of electron transfer in solution. In addition, the effects of different operating conditions such as magnetic Ti3C2Tx dose, pH, and initial chlorine concentration on DCF degradation were investigated. Magnetic Ti3C2Tx showed high stability and photodegradation efficiency during seven consecutive degradation reaction cycles. The derivatives of DCF during the photocatalytic degradation process were also investigated based on the observed intermediate products and a degradation pathway was proposed. Thus the synthesized magnetic Ti3C2Tx is a simple and affordable photocatalyst, which can significantly enhance DCF degradation in the UV/chlorine advanced oxidation process.
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Affiliation(s)
- Jiseon Jang
- R&D Institute of Radioactive Wastes, Korea Radioactive Waste Agency, 174 Gajeong-ro, Yuseong-gu, Daejeon, 34129, Republic of Korea
| | - Asif Shahzad
- Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, Republic of Korea
| | - Seung Han Woo
- Department of Chemical and Biological Engineering, Hanbat National University, 125 Dongseo-daero, Yuseong-gu, Daejeon, 34158, Republic of Korea.
| | - Dae Sung Lee
- Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, Republic of Korea.
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15
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Esfandyari Y, Saeb K, Tavana A, Rahnavard A, Fahimi FG. Effective removal of cefazolin from hospital wastewater by the electrocoagulation process. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2019; 80:2422-2429. [PMID: 32245934 DOI: 10.2166/wst.2020.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The present study evaluated the treatment of hospital wastewater by the electrocoagulation process using aluminum and iron electrodes. The effects of pH, voltage and reaction time on the removal efficiencies of the antibiotic cefazolin, chemical oxygen demand (COD) and turbidity were investigated. The results showed that by increasing reaction time and input voltage, the removal efficiency of pollutants was increased. The highest removal efficiency of cefazolin, COD, and turbidity occurred at neutral pH, which may have been related to the formation of aluminum hydroxide (Al(OH)3) flocs through the combination of aluminum released from the surface of the electrode and the hydroxide ions present in the solution. The conductivity of the treated wastewater at neutral to alkaline pH decreased compared to acidic pH, which may have been due to the adsorption of anions and cations from the solution by the Al(OH)3 flocs. The electrode and energy consumption in the present study was higher than in other studies, which may have been due to the high concentration of COD in and the turbidity of the solution.
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