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Chen J, Mu W, Chang C. In-situ construct CuInS 2/Bi/Bi 2MoO 6 S-scheme/Schottky dual heterojunctions catalyst for enhanced photocatalytic degradation of diclofenac sodium. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 351:124077. [PMID: 38705447 DOI: 10.1016/j.envpol.2024.124077] [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: 03/10/2024] [Revised: 04/24/2024] [Accepted: 04/28/2024] [Indexed: 05/07/2024]
Abstract
In this paper, the S-scheme/Schottky heterojunction photocatalyst (CuInS2/Bi/Bi2MoO6, CIS/Bi/BMO) was successfully constructed via a facile in-situ solvothermal method, aimed at enhancing its photocatalytic performance. The results of the study on the photocatalytic degradation of diclofenac sodium (DCF) under simulated solar light irradiation revealed that the as-prepared composite exhibited remarkable catalytic efficiency in comparison to the pristine Bi2MoO6 and CuInS2. The plasmonic bismuth (Bi) was formed during the solvothermal process. Subsequently, CuInS2 and Bi were grown on the surface of Bi2MoO6 leading to forming CIS/BMO S-scheme heterojunction, along with a Schottky junction between Bi and Bi2MoO6. The use of ethylene glycol as a support was the main reason for the significant improvement in photocatalytic efficiency in the degradation of DCF. Moreover, the probable photocatalytic mechanisms for the degradation of DCF had been proposed based on the active species quenching experiments. The eleven degradation products were detected by HPLC-MS, and the degradation reaction pathway of DCF was deduced. Additionally, the CIS/Bi/BMO photocatalyst exhibited a consistently high removal rate after four cycles. This study proposes a new strategy for designing efficient S-scheme/Schottky heterojunction photocatalysts for solar energy conversion.
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Affiliation(s)
- Junlin Chen
- College of Chemistry and Materials Engineering, Bohai University, Jinzhou 121013, China
| | - Weina Mu
- College of Environmental and Chemical Engineering, Dalian University, Dalian 116622, China
| | - Chun Chang
- College of Chemistry and Materials Engineering, Bohai University, Jinzhou 121013, China; College of Environmental and Chemical Engineering, Dalian University, Dalian 116622, China.
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2
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Fergani S, Zazoua H, Saadi A, Touati S, Boudjemaa A, Bachari K. Activation of peroxymonosulfate by Co2SnO4/Co3O4/SnO2 material for the effective degradation of diclofenac. REACTION KINETICS MECHANISMS AND CATALYSIS 2023. [DOI: 10.1007/s11144-023-02381-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/28/2023]
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3
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Deena S, Vedanayaki S, Sathish T, Dao MU, Rajasimman M, Saravanan R, Prakash P. Magnetic Co/CoOx@NCNT catalysts for activation of potassium peroxymonosulfate to deteriorate phenol from wastewater. ENVIRONMENTAL RESEARCH 2023; 216:114763. [PMID: 36356663 DOI: 10.1016/j.envres.2022.114763] [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: 10/07/2022] [Revised: 11/04/2022] [Accepted: 11/06/2022] [Indexed: 06/16/2023]
Abstract
Phenols are of much toxicological and they must be effectively removed from the wastewater from industries as well as sewage treatment. Such removal demands a special and strong composite. So, this piece of research aims to activate Potassium peroxymonosulfate (PPMS) with the large surface area of magnetite nitrogen-fixed porous carbon nanotube composites (Co/CoOx@NCNT). Increases in the graphitization degree and structural control brought about by the incorporation of reduced Graphite oxide (rGO) significantly increased the catalyst activity of Co/CoOx@NCNT. It was found that PPMS activation for phenol removal by Co/CoOx@NCNT was nearly as effective as by homogeneous Co2+, with nearly 100% removal efficiency in 10 min. Both high reusability and high recycling of Co/CoOx@NCNT were accomplished simultaneously by proving the technology of viability in practical applications. The PPMS activation mechanism in the Co/CoOx@NCNT/PPMS system was driven by the electron transmission from contaminants to PPMS through the sp2- hybrid carbon nanotubes and nitrogen system. The selectivity of the Co/CoOx@NCNT/PPMS system to remove diverse organic compounds was determined by batch experiments. Due to the insignificant impact of radicals reactive on pollutant breakdown, the ability to inhibit species (such as Cl- and natural organic materials) from a minor role was significantly decreased. These results not only shed light on the process of PPMS heterogeneous activation but also provided a framework for the balanced project of highly effective nanocarbon-based catalysts for PPMS activation.
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Affiliation(s)
- S Deena
- Department of Computer Science Engineering, School of Computing, Amrita Vishwa Vidyapeetham, Chennai, 601103, Tamil Nadu, India
| | - S Vedanayaki
- Department of Chemistry, Kandaswami Kandar's College, Velur, Namakkal, 638182, Tamil Nadu, India
| | - T Sathish
- Department of Mechanical Engineering, Saveetha School of Engineering, SIMATS, Chennai, Tamil Nadu, India.
| | - My Uyen Dao
- Center for Advanced Chemistry, Institute of Research and Development, Duy Tan University, 03 Quang Trung, Da Nang, 550000, Viet Nam; The Faculty of Natural Sciences, Duy Tan University, 03 Quang Trung, Da Nang, 550000, Viet Nam.
| | - M Rajasimman
- Department of Chemical Engineering, Annamalai University, Annamalai Nagar, 608002, India
| | - R Saravanan
- Department of Mechanical Engineering, Saveetha School of Engineering, SIMATS, Chennai, Tamil Nadu, India
| | - P Prakash
- Department of Biotechnology, Sathyabama Institute of Science and Technology, Chennai, Tamil Nadu, India
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He H, Zhao J. The efficient degradation of diclofenac by ferrate and peroxymonosulfate: performances, mechanisms, and toxicity assessment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:11959-11977. [PMID: 36103067 DOI: 10.1007/s11356-022-22967-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 09/05/2022] [Indexed: 06/15/2023]
Abstract
In this study, the degradation efficiency and reaction mechanisms of diclofenac (DCF), a nonsteroidal anti-inflammatory drug, by the combination of ferrate (Fe(VI) and peroxymonosulfate (PMS) (Fe(VI)/PMS) were systematically investigated. The higher degradation efficiency of DCF in Fe(VI)/PMS system can be obtained than that in alone persulfate (PS), Fe(VI), PMS, or the Fe(VI)/PS process at pH 6.0. DCF was efficiently removed in Fe(VI)/PMS process within a wide range of pH values from 4.0 to 8.0, with higher degradation efficiency in acidic conditions. The increasing reaction temperature (10 to 30 ℃), Fe(VI) dose (6.25 to 100 µM), or PMS concentration (50 to 1000 µM) significantly enhanced the DCF degradation. The existences of HCO3¯, Cl¯, and humic acid (HA) obviously inhibited the DCF removal. Electron paramagnetic resonance (EPR), free radical quenching, and probing experiments confirmed the existence of sulfate radicals (SO4•¯), hydroxyl radicals (•OH), and Fe(V)/ Fe(IV), which are responsible for DCF degradation in Fe(VI)/PMS system. The variations of TOC removal ratio reveal that the adsorption of organics with ferric particles, formed in the reduction of Fe(VI), also were functioned in the removal process. Sixteen DCF transformation byproducts were identified by UPLC-QTOF/MS, and the toxicity variation was evaluated. Consequently, eight reaction pathways for DCF degradation were proposed. This study provides theoretical basis for the utilization of Fe(VI)/PMS process.
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Affiliation(s)
- Haonan He
- College of Chemistry and Materials Science, Sichuan Normal University, Jingan Road 5#, Jinjiang District, Chengdu, 610066, Sichuan, China
| | - Junfeng Zhao
- College of Chemistry and Materials Science, Sichuan Normal University, Jingan Road 5#, Jinjiang District, Chengdu, 610066, Sichuan, China.
- Key Laboratory of Special Waste Water Treatment, Sichuan Province Higher Education System, Sichuan, Chengdu, 610066, China.
- Key Laboratory of Land Resources Evaluation and Monitoring in Southwest, Ministry of Education of China, Chengdu, 610066, China.
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Bai Y, Wang W, Xie F, Lu D, Jiang K, Dreisinger D. In-situ electrochemical study of chalcopyrite pressure oxidation leaching from 110 °C to 150 °C under saturated vapor pressure. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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6
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Zhou X, Zhao Q, Wang J, Wei X, Zhang R, Wang S, Liu P, Chen Z. Effects of foreign metal doping on the step-by-step oxidation process in M-OMS-2 catalyzed activation of PMS. JOURNAL OF HAZARDOUS MATERIALS 2022; 434:128773. [PMID: 35427977 DOI: 10.1016/j.jhazmat.2022.128773] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 03/15/2022] [Accepted: 03/21/2022] [Indexed: 06/14/2023]
Abstract
Various metal cations M (M = Mg2+, Ca2+, Zn2+, Cu2+, Fe3+) were doped into the tunnel of manganese octahedral molecular sieve (OMS-2). Redox-inactive metal (Ca, Mg and Zn) doped OMS-2 exhibited better peroxymonosulfate (PMS) catalytic activity than redox metal-doped Cu-OMS-2 and Fe-OMS-2. Redox-inactive metals doping improves the conductivity and reducibility of the catalyst, while transition metal doping reduces the dispersion of manganese. More importantly, the degradation of ACE can be divided into two stages. In the first stage, ACE was oxidized dominantly through mediated electron transfer process. Subsequently, singlet oxygen (1O2) gradually dominated oxidative degradation in the second stage, which was derived from the reaction between superoxide radical (O2•-) and metastable manganese intermediates. The long half-life of O2•- on the surface of OMS-2 ensured the delay generation of 1O2. This study not only provides a new idea for improving the efficiency of heterogeneous catalysts activation of PMS, but also meaningful for the in-depth study of multiple reaction mechanisms in PMS activation processes.
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Affiliation(s)
- Xinquan Zhou
- College of Chemical Engineering & Pharmaceutics, Henan University of Science and Technology, Luoyang, Henan 471023, PR China
| | - Qindi Zhao
- Hubei Key laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China; Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Jia Wang
- Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling; Huazhong University of Science and Technology, Wuhan 430074, PR China; School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Xuefeng Wei
- College of Chemical Engineering & Pharmaceutics, Henan University of Science and Technology, Luoyang, Henan 471023, PR China
| | - Ruichang Zhang
- College of Chemical Engineering & Pharmaceutics, Henan University of Science and Technology, Luoyang, Henan 471023, PR China
| | - Songlin Wang
- Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling; Huazhong University of Science and Technology, Wuhan 430074, PR China; School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Peng Liu
- Hubei Key laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China; Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China.
| | - Zhuqi Chen
- Hubei Key laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China; Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China.
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7
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Haque S, Tripathy S, Patra CR. Manganese-based advanced nanoparticles for biomedical applications: future opportunity and challenges. NANOSCALE 2021; 13:16405-16426. [PMID: 34586121 DOI: 10.1039/d1nr04964j] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Nanotechnology is the most promising technology to evolve in the last decade. Recent research has shown that transition metal nanoparticles especially manganese (Mn)-based nanoparticles have great potential for various biomedical applications due to their unique fundamental properties. Therefore, globally, scientists are concentrating on the development of various new manganese-based nanoparticles (size and shape dependent) due to their indispensable utilities. Although numerous reports are available regarding the use of manganese nanoparticles, there is no comprehensive review highlighting the recent development of manganese-based nanomaterials and their potential applications in the area of biomedical sciences. The present review article provides an overall survey on the recent advancement of manganese nanomaterials in biomedical nanotechnology and other fields. Further, the future perspectives and challenges are also discussed to explore the wider application of manganese nanoparticles in the near future. Overall, this review presents a fundamental understanding and the role of manganese in various fields, which will attract a wider spectrum of the scientific community.
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Affiliation(s)
- Shagufta Haque
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad - 500007, Telangana State, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, U.P., India
| | - Sanchita Tripathy
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad - 500007, Telangana State, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, U.P., India
| | - Chitta Ranjan Patra
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad - 500007, Telangana State, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, U.P., India
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9
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Kaewbuddee C, Chirawatkul P, Kamonsuangkasem K, Chanlek N, Wantala K. Structural characterizations of copper incorporated manganese oxide OMS-2 material and its efficiencies on toluene oxidation. CHEM ENG COMMUN 2021. [DOI: 10.1080/00986445.2021.1872021] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- C. Kaewbuddee
- Department of Chemical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, Thailand
- Chemical Kinetics and Applied Catalysis Laboratory (CKCL), Faculty of Engineering, Khon Kaen University, Khon Kaen, Thailand
| | - P. Chirawatkul
- Synchrotron Light Research Institute (Public Organization), Nakhon Ratchasima, Thailand
| | - K. Kamonsuangkasem
- Synchrotron Light Research Institute (Public Organization), Nakhon Ratchasima, Thailand
| | - N. Chanlek
- Synchrotron Light Research Institute (Public Organization), Nakhon Ratchasima, Thailand
| | - K. Wantala
- Department of Chemical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, Thailand
- Chemical Kinetics and Applied Catalysis Laboratory (CKCL), Faculty of Engineering, Khon Kaen University, Khon Kaen, Thailand
- Research Center for Environmental and Hazardous Substance Management (EHSM), Faculty of Engineering, Khon Kaen University, Khon Kaen, Thailand
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Ning S, Mao S, Liu C, Xia M, Wang F. A novel LaFeO 3 catalyst synthesized from sodium diethylenetriamine pentamethylene phosphonate for degradation of diclofenac through peroxymonosulfate activation: degradation pathways and mechanism study. REACT CHEM ENG 2021. [DOI: 10.1039/d1re00259g] [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
A series of LaFeO3 catalysts were prepared using the sol–gel method with sodium diethylenetriamine pentamethylene phosphonate as the complexing agent and were applied to activate PMS to produce active oxides to degrade DCF.
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Affiliation(s)
- Shuaiqi Ning
- School of Chemical Engineering, Nanjing University of Science & Technology, Nanjing, 210094, China
| | - Shuai Mao
- School of Chemical Engineering, Nanjing University of Science & Technology, Nanjing, 210094, China
| | - Chun Liu
- School of Chemical Engineering, Nanjing University of Science & Technology, Nanjing, 210094, China
| | - Mingzhu Xia
- School of Chemical Engineering, Nanjing University of Science & Technology, Nanjing, 210094, China
| | - Fengyun Wang
- School of Chemical Engineering, Nanjing University of Science & Technology, Nanjing, 210094, China
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11
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He J, Yang J, Jiang F, Liu P, Zhu M. Photo-assisted peroxymonosulfate activation via 2D/2D heterostructure of Ti 3C 2/g-C 3N 4 for degradation of diclofenac. CHEMOSPHERE 2020; 258:127339. [PMID: 32554010 DOI: 10.1016/j.chemosphere.2020.127339] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 05/29/2020] [Accepted: 06/04/2020] [Indexed: 06/11/2023]
Abstract
In this paper, a two dimensional/two dimensional (2D/2D) heterostructure of Ti3C2/g-C3N4 (T/CN) was constructed and used to activate peroxymonosulfate (PMS) for the degradation of diclofenac (DCF) in water in the presence of light illumination. Compared with single photocatalytic process by T/CN (0.040/min) and with pure g-C3N4 nanosheets in PMS system (0.071/min), 5.0 and 3.0 times enhanced activities were achieved in the T/CN-PMS system at optimum Ti3C2 (1.0 wt%) loading under light illumination (0.21/min). Moreover, the decomposing processes of DCF in T/CN-PMS system were applicable in a wide initial pH range (3∼14), therefore, overcoming the limitation of pH dependence in traditional PMS system. Based on the synergistic effect of photocatalysis and PMS oxidation processes, the 1O2 was generated as primary reactive species for the removal of DCF in T/CN-PMS system. The DCF degradation mechanism was further proposed through the results of liquid chromatography-mass spectrometry (LC-MS) and density functional theory (DFT) calculations.
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Affiliation(s)
- Jie He
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou, 511443, PR China
| | - Jingling Yang
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou, 511443, PR China
| | - Fengxing Jiang
- Flexible Electronics Innovation Institute, Jiangxi Science and Technology Normal University, Nanchang, 330013, PR China
| | - Peng Liu
- Flexible Electronics Innovation Institute, Jiangxi Science and Technology Normal University, Nanchang, 330013, PR China
| | - Mingshan Zhu
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou, 511443, PR China.
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12
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Wu M, Deng H, Shi J, Wang Z. Transition element doped octahedral manganese molecular sieves (Me-OMS-2) as diclofenac adsorbents. CHEMOSPHERE 2020; 258:127120. [PMID: 32544808 DOI: 10.1016/j.chemosphere.2020.127120] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 05/10/2020] [Accepted: 05/17/2020] [Indexed: 06/11/2023]
Abstract
Diclofenac (DCF) control measures have become an area of increased interest for environmental researchers due to the high environmental concentration and risk of DCF. Adsorption seems to be promising for DCF removal from the aqueous phase because of its specific superiority in comparison with biodegradation, membrane separation, and advanced oxidation or reduction. In this study, OMS-2 and metal-doped OMS-2 ((Me-OMS-2, with Me = Co, Cu or Ce) were prepared and tested as adsorbents for the removal of DCF. It was evident that the maximum adsorption capacity and rate of Ce-OMS-2 were much higher than those of the other adsorbents, which could be attributed to its large specific surface area and stereoscopic aperture structure. The experimental data are fitted the pseudo-second-order model, the Elovich equation and the Langmuir model well; moreover, the process is an endothermic and spontaneous thermodynamic process, during which the entropy increased, based on the experimental results, indicating that chemisorption was dominant during the DCF adsorption process onto Ce-OMS-2. By the integral of the peak deconvoluted from the XPS spectrum, the ratio of Mn3+/Mn4+ increased from 0.393 to 0.407, revealing that Mn(IV) is rarely reduced into Mn(III) during the DCF adsorption process.
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Affiliation(s)
- Minhui Wu
- Shanghai National Engineering Research Center of Urban Water Resources Co., Ltd., Shanghai, 200082, China; Shanghai Institute of Pollution Control and Ecological Security, Key Laboratory of Yangtze River Water Environment Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China
| | - Huiping Deng
- Shanghai Institute of Pollution Control and Ecological Security, Key Laboratory of Yangtze River Water Environment Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China.
| | - Jun Shi
- Shanghai Institute of Pollution Control and Ecological Security, Key Laboratory of Yangtze River Water Environment Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China.
| | - Zheng Wang
- Shanghai National Engineering Research Center of Urban Water Resources Co., Ltd., Shanghai, 200082, China
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Dimitriadou S, Frontistis Z, Petala A, Bampos G, Mantzavinos D. Carbocatalytic activation of persulfate for the removal of drug diclofenac from aqueous matrices. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.02.025] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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14
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Ivanets AI, Milyutin VV, Prozorovich VG, Kuznetsova TF, Petrovskaya AO, Nekrasova NA. Sorption of 90Sr onto Manganese Oxides Prepared in Aqueous-Ethanol Media. RADIOCHEMISTRY 2019. [DOI: 10.1134/s1066362219060110] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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15
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Minhui W, Jun S, Chao D, Huiping D. Binuclear cobalt phthalocyanine supported on manganese octahedral molecular sieve: High-efficiency catalyzer of peroxymonosulfate decomposition for degrading propranolol. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 686:97-106. [PMID: 31176826 DOI: 10.1016/j.scitotenv.2019.05.474] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2019] [Revised: 05/28/2019] [Accepted: 05/30/2019] [Indexed: 06/09/2023]
Abstract
Propranolol (PRO) is widely detected in the aquatic environment and proved to be detrimental to multifarious aquatic organisms. In view of some virtues of sulfate radicals than hydroxyl radicals, advanced oxidation technologies that involve the activation of peroxymonosulfate (PMS) have stimulated wide-ranging research on the PRO removal. In this paper, a composite (C2NOMS-2) of amino-functionalized manganese octahedral molecular sieve (NOMS-2) and binuclear cobalt phthalocyanine (Co2CPc) was synthesized easily, and utilized as a catalyzer for PMS to degrade PRO in water. The apparent rate constants of PRO degradation by PMS with C2NOMS-2 as a catalyst was found to be higher than with NOMS-2, Co2CPc and the composite of uninuclear cobalt phthalocyanine (CoCPc) and NOMS-2. The catalytic ability of C2NOMS-2 was investigated under various reaction conditions: catalyst dosages (0.5-2.0 g/L), PMS doses (50-500 mg/L), initial pH (5-11), reaction temperature (20-35 °C), and natural water constituents (Cl-, HCO3-, and sodium huminate). Radical scavenging tests and electron paramagnetic resonance spectroscopy showed that 1O2 was the most critical reactive oxygen species, and conceivable mechanisms of PMS activation with C2NOMS-2 were proposed established on the curve estimation of high-resolution XPS spectra, revealing that the generation of reactive oxygen species was mainly resulted from the cycles of Mn3+/Mn4+, Co3+/Co2+ and surface lattice oxygen/surface adsorbed oxygen. The intermediate products of propranolol degradation were identified by LC-MS/MS. Cycling experiments and ion dissolution detection suggested that C2NOMS-2 could maintain satisfactory stability in an aqueous system.
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Affiliation(s)
- Wu Minhui
- Shanghai Institute of Pollution Control and Ecological Security, Key Laboratory of Yangtze River Water Environment Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Shi Jun
- Shanghai Institute of Pollution Control and Ecological Security, Key Laboratory of Yangtze River Water Environment Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Ding Chao
- Shanghai Institute of Pollution Control and Ecological Security, Key Laboratory of Yangtze River Water Environment Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Deng Huiping
- Shanghai Institute of Pollution Control and Ecological Security, Key Laboratory of Yangtze River Water Environment Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China.
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16
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Adsorption properties of manganese oxides prepared in aqueous-ethanol medium toward Sr(II) ions. J Radioanal Nucl Chem 2019. [DOI: 10.1007/s10967-019-06557-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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17
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Xian G, Zhang G, Chang H, Zhang Y, Zou Z, Li X. Heterogeneous activation of persulfate by Co 3O 4-CeO 2 catalyst for diclofenac removal. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 234:265-272. [PMID: 30634119 DOI: 10.1016/j.jenvman.2019.01.013] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 12/19/2018] [Accepted: 01/04/2019] [Indexed: 06/09/2023]
Abstract
A series of Co3O4-CeO2 mixed metal oxides were synthesized by co-precipitation method and successfully used to activate persulfate for diclofenac removal. The effects of Co:Ce mole ratio, calcination temperature and calcination time on the catalytic activities were investigated. Results showed that the activity of Co3O4-CeO2 catalysts increased with Co:Ce mole ratio from 1:9 to 7:3, and decreased with the calcination temperature from 300 to 800 °C. 90% diclofenac was removed with Co7Ce3-300-1 catalyst (Co:Ce = 7:3, calcinated at 300 °C for 1 h) after 15 min. Moreover, short calcination time and low temperature resulted in smaller crystallite size, more structural defects, more active crystal surfaces and larger surface area of the catalyst, which led to higher removal efficiency of diclofenac. The high ratios of Co2+/Co3+, Ce3+/Ce4+ and Oads/Olatt were very important to enhance the catalytic activity. Finally, a potential reaction mechanism was proposed based on characterization of the fresh and spent catalysts.
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Affiliation(s)
- Guang Xian
- School of Environment & Natural Resource, Renmin University of China, Beijing 100872, China; Department of Military Installations, Army Logistics University of PLA, Chongqing 401311, China.
| | - Guangming Zhang
- School of Environment & Natural Resource, Renmin University of China, Beijing 100872, China.
| | - Huazhen Chang
- School of Environment & Natural Resource, Renmin University of China, Beijing 100872, China.
| | - Yi Zhang
- Shandong Public Holdings Tongtai Environment Limited, Jinin 277200, China.
| | - Zhiguo Zou
- Shandong Public Holdings Tongtai Environment Limited, Jinin 277200, China.
| | - Xueyan Li
- School of Environmental Science & Engineering, Suzhou University of Science and Technology, Suzhou 215009, China.
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Wu M, Fu K, Deng H, Shi J. Cobalt tetracarboxyl phthalocyanine-manganese octahedral molecular sieve (OMS-2) as a heterogeneous catalyst of peroxymonosulfate for degradation of diclofenac. CHEMOSPHERE 2019; 219:756-765. [PMID: 30557733 DOI: 10.1016/j.chemosphere.2018.12.030] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 11/21/2018] [Accepted: 12/05/2018] [Indexed: 06/09/2023]
Abstract
A composite of cobalt tetracarboxyl phthalocyanine and amino-functionalized manganese octahedral molecular sieve (CNOMS-2) was synthesized in a simple way, and applied for degrading diclofenac in aqueous media by catalyzing of peroxymonosulfate heterogeneously. The experiment results revealed that the CNOMS-2/PMS system was highly efficient for DCF degradation in the pH range of 5-9, and the mechanism involved the generation of OH, SO4⁻ and 1O2 by the activation of PMS. The main reactive oxygen species was found to be 1O2 by radical scavenging experiments and electron paramagnetic resonance (EPR) spectroscopy. Further, a carboxylation product of DCF at m/z 340 was found to be a prominent intermediate of the reaction in this system specially, as determined by LC-MS/MS. The reusability and ion leaching concentrations under different pH were also examined to determine the application prospects of the catalyst.
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Affiliation(s)
- Minhui Wu
- Shanghai Institute of Pollution Control and Ecological Security, Key Laboratory of Yangtze River Water Environment Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Kun Fu
- Shanghai Institute of Pollution Control and Ecological Security, Key Laboratory of Yangtze River Water Environment Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Huiping Deng
- Shanghai Institute of Pollution Control and Ecological Security, Key Laboratory of Yangtze River Water Environment Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China.
| | - Jun Shi
- Shanghai Institute of Pollution Control and Ecological Security, Key Laboratory of Yangtze River Water Environment Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China.
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