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Khudkham T, Channei D, Pinchaipat B, Chotima R. Degradation of Methylene Blue with a Cu(II)-Quinoline Complex Immobilized on a Silica Support as a Photo-Fenton-Like Catalyst. ACS OMEGA 2022; 7:33258-33265. [PMID: 36157765 PMCID: PMC9494654 DOI: 10.1021/acsomega.2c03770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 09/01/2022] [Indexed: 06/16/2023]
Abstract
A Cu(II)-quinoline complex immobilized on a silica support was prepared to enhance the degradation of dyes. Mesoporous silica functionalized with this Cu(II) complex was turned into a photo-Fenton-like catalyst. Various techniques were used to characterize the resulting material, and the catalytic activity was determined by the degradation of methylene blue (MB) under UV light irradiation. The Cu(II) ion was successfully coordinated to the quinoline ligand on a silica support. The dye degradation investigation has shown that 95% of the dye was degraded in 2.5 h. The active radical species involved in the reaction were OH• and O2 •-, suggesting that a peroxo complex intermediate might be formed during degradation processes.
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Ye Q, Xu H, Wang Q, Huo X, Wang Y, Huang X, Zhou G, Lu J, Zhang J. New insights into the mechanisms of tartaric acid enhancing homogeneous and heterogeneous copper-catalyzed Fenton-like systems. JOURNAL OF HAZARDOUS MATERIALS 2021; 407:124351. [PMID: 33144019 DOI: 10.1016/j.jhazmat.2020.124351] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 10/04/2020] [Accepted: 10/19/2020] [Indexed: 06/11/2023]
Abstract
The specific roles of tartaric acid (TA), as an eco-friendly ligand, in homogeneous and heterogeneous copper-catalyzed systems were systematically revealed and new mechanisms of TA enhancing the three Fenton-like processes were proposed to provide a theoretical significance in overcoming the deficiency of conventional Fenton processes. The results identified hydroxyl radical (•OH) as the main species responsible for the simultaneous decomposition of TA and metronidazole (MNZ) according to TOC removal. The ESR technique was used to detect superoxide radicals (•O2-), carbon-centered radical (•R) and hydrogen radical (•H) in the Cu2+/TA/H2O2 system, which contributed to the acceleration of the Cu2+/Cu+ redox cycle. The enhancing effect of TA on the homogeneous process was ascribed to the formation of a soluble complex with Cu2+, which favored the pH range extension, Cu+ oxidation, and radical generation. Moreover, the adsorption of TA on the catalysts surface promoted the consumption of H2O2, inducing •OH generation. The formed surface complex (≡Cu2+-TA) also accelerated the regeneration of ≡Cu+, which was confirmed by density functional theory (DFT) calculation and surface characterization analysis (SEM, XRD, and XPS). The possible degradation pathways of MNZ in TA-modified Fenton-like system were also clarified.
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Affiliation(s)
- Qian Ye
- College of Architecture & Environment, Sichuan University, Chengdu 610065, China
| | - Hao Xu
- College of Architecture & Environment, Sichuan University, Chengdu 610065, China
| | - Qingguo Wang
- College of Architecture & Environment, Sichuan University, Chengdu 610065, China
| | - Xiaowei Huo
- College of Architecture & Environment, Sichuan University, Chengdu 610065, China
| | - Yunqi Wang
- College of Architecture & Environment, Sichuan University, Chengdu 610065, China
| | - Xue Huang
- College of Architecture & Environment, Sichuan University, Chengdu 610065, China
| | - Guanyu Zhou
- College of Architecture & Environment, Sichuan University, Chengdu 610065, China
| | - Jinfeng Lu
- College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China
| | - Jing Zhang
- College of Architecture & Environment, Sichuan University, Chengdu 610065, China.
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Sharma V, Pant B, Prakash D, Sagar P. Trans(Cl)-2,2′-bipyridinedicarbonyldichlororuthenium(II) complex catalyzed oxidation of olefins, aryl hydrocarbons and alcohols in homogeneous phase. J INDIAN CHEM SOC 2021. [DOI: 10.1016/j.jics.2021.100012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Subburu M, Gade R, Guguloth V, Chetti P, Ravulapelly KR, Pola S. Effective photodegradation of organic pollutantsin the presence of mono and bi-metallic complexes under visible-light irradiation. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2020.112996] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Nano-PAA-CuCl2 Composite as Fenton-Like Reusable Catalyst to Enhanced Degrade Organic Pollutant MB/MO. Catalysts 2020. [DOI: 10.3390/catal11010010] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The treatment of organic dye contaminants in wastewaters has now becoming more imperative. Fenton-like degradation of methylene blue (MB) and methyl orange (MO) in aqueous solution was investigated by using a nanostructure that a layer of CuCl2 nanoflake film grown on the top surface of nanoporus anodic alumina substrate (nano-PAA-CuCl2) as catalyst. The new nano-PAA-CuCl2 composite was fabricated with self-assembly approach, that is, a network porous structure film composed of CuCl2 nanoflake grown on the upper surface of nanoporous anodic alumina substrate, and the physical and chemical properties are characterized systematically with the X-ray diffraction (XRD), field emission scanning electron microscope (FE-SEM), and high-resolution transmission electron microscopy (HRTEM), Energy Dispersive Spectrometer (EDS), X-ray photoelectron spectroscopy (XPS). The experimental results showed that the nano-PAA-CuCl2 catalyst presented excellent properties for the degradation of two typical organic pollutants such as MB and MO, which were almost completely degraded with 8 × 10−4mol/L nano-PAA-CuCl2 catalyst after 46 min and 60 min at reaction conditions of H2O2 18 mM and 23 mM, respectively. The effects of different reaction parameters such as initial pH, H2O2 concentration, catalyst morphology and temperature were attentively studied. And more, the stability and reusability of nano-PAA-CuCl2 were examined. Finally, the mechanism of MB and MO degradation by the nano-PAA-CuCl2/H2O2 system was proposed, based on the experimental data of the BCA and the temperature-programmed reduction (H2-TPR) and theoretical analysis, the reaction kinetics belonged to the pseudo-first-order equation. This new nanoporous composite material and preparation technology, as well as its application in Fenton-like reaction, provide an effective alternative method with practical application significance for wastewater treatment.
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Chen J, Zhou X, Sun P, Zhang Y, Huang CH. Complexation Enhances Cu(II)-Activated Peroxydisulfate: A Novel Activation Mechanism and Cu(III) Contribution. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:11774-11782. [PMID: 31523953 DOI: 10.1021/acs.est.9b03873] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
While aqueous free Cu(II) ion is known to be ineffective to activate peroxydisulfate (PDS), here we report for the first time that Cu(II) complexes are potentially effective activators for PDS when the coordination involves suitable ligands. Using cefalexin (CFX) as a representative, studies show that the complex of Cu(II) with CFX can efficiently activate PDS to induce rapid degradation of CFX. Transformation products of CFX by PDS/Cu(II) differ substantially from those generated from the typical radical oxidation process, for example, PDS/Ag(I), but quite resemble the products from oxidation of CFX by Cu(III). Complexation with CFX increases the electron density of Cu(II), favoring electron transfer from Cu(II) to PDS to generate radicals and Cu(III). The produced Cu(III), rather than radicals, plays the primary role in the overall CFX degradation and regenerates Cu(II) in a catalytic cycle. This novel activation process can occur for a wide range of contaminants (cephalosporin, penicillin, and tetracycline antibiotics) and ligands when coordinated with Cu(II), and N-containing functional groups (e.g. amines) were found to form effective Cu(II) complexes for PDS activation. The new findings of this study further broaden the knowledge on PDS activation by aqueous Cu(II), and verify the contribution of Cu(III) to contaminant elimination.
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Affiliation(s)
- Jiabin Chen
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering , Tongji University , Shanghai 200092 , P. R. China
| | - Xuefei Zhou
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering , Tongji University , Shanghai 200092 , P. R. China
| | - Peizhe Sun
- School of Environmental Science and Engineering , Tianjin University , Tianjin 300072 , P. R. China
| | - Yalei Zhang
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering , Tongji University , Shanghai 200092 , P. R. China
| | - Ching-Hua Huang
- School of Civil and Environmental Engineering , Georgia Institute of Technology , Atlanta Georgia 30332 , United States
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Guguloth V, Ahemed J, Subburu M, Guguloth VC, Chetti P, Pola S. A very fast photodegradation of dyes in the presence of new Schiff’s base N4-macrocyclic Ag-doped Pd(II) complexes under visible-light irradiation. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2019.111975] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Selective Oxidation of Aromatic Olefins Catalyzed by Copper(II) Complex in Micellar Media. Catal Letters 2017. [DOI: 10.1007/s10562-017-2160-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Deka B, Bhattacharyya KG. Using coal fly ash as a support for Mn(II), Co(II) and Ni(II) and utilizing the materials as novel oxidation catalysts for 4-chlorophenol mineralization. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2015; 150:479-488. [PMID: 25560663 DOI: 10.1016/j.jenvman.2014.12.037] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Revised: 11/22/2014] [Accepted: 12/18/2014] [Indexed: 06/04/2023]
Abstract
In this work, Mn(II), Co(II) and Ni(II) were incorporated into waste coal fly ash used as a catalyst support by refluxing with the appropriate aqueous salt solution. The materials were calcined at 773-873 K for 5 h and the amount of divalent cations entering into the fly ash was determined by AAS measurements. Further characterization included estimation of oxides by XRF, structural properties by XRD, topographical features by SEM, surface functional groups by FT-IR, surface area and pore dimensions by BET N2-adsorption isotherms. The efficiency of the materials as environmental oxidation catalysts were tested with respect to destruction of 4-chlorophenol (4-CP) in water in the presence of hydrogen peroxide. Considered as one of the most persistent, toxic and largely applied organic compound, 4-CP enters water from the effluents of petrochemical, plastic, pesticide, kraft mill and other organochemical industries and research centers. Wet oxidation of 4-CP was tested by varying the mole ratio of 4-CP and H2O2, catalyst load, temperature, reaction time, 4-CP concentration and pH. Oxidation of 4-CP (5 × 10(-3) M or 643 mg L(-1)) was 51.1% for Mn(II)-fly ash, 58.3% for Co(II)-fly ash and 61.0% for Ni(II)-fly ash after 180 min at 323 K with 4-CP: H2O2 mole ratio of 1:1. COD load of the reaction mixture (4-CP: 5 × 10(-3) M, H2O2: 5 × 10(-3) M, catalyst load: 1.0 g L(-1), temperature 323 K, reaction time 0-240 min) decreased from 1480 to 620, 380, and 140 mg L(-1) respectively after oxidation with Mn(II)-fly ash, Co(II)-fly ash and Ni(II)-fly ash (overall COD reduction was 58.0, 74.3 and 90.5% respectively). The oxidation followed second order kinetics with the average rate coefficient of 7.9, 1.3 and 1.2 L mol(-1) min(-1) for Mn(II)-, Co(II)- and Ni(II)-fly ash. Increase in H2O2: 4-CP mole ratio from 1:1 to 20:1 (reaction time 300 min, catalyst load 1.0 g L(-1)) enhanced destruction from 52.1 to 95.6% for Mn(II)-fly ash, 58.3-95.6% for Co(II)-fly ash and from 60.4 to 94.8% for Ni(II)-fly ash. The oxidation increased with catalyst load but very high loads were not effective. Low pH favored the oxidation, but the catalysts performed well at the pH of aqueous 4-CP solution. A mechanism for the reactions is suggested based on the analysis of the products of oxidation.
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Affiliation(s)
- Bharati Deka
- Department of Chemistry, Gauhati University, Guwahati 781014, Assam, India
| | - K G Bhattacharyya
- Department of Chemistry, Gauhati University, Guwahati 781014, Assam, India.
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Mi C, Meng XG, Liao XH, Peng X. Selective oxidative cleavage of terminal olefins into aldehydes catalyzed by copper(ii) complex. RSC Adv 2015. [DOI: 10.1039/c5ra14093e] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A method for oxidative CC bond cleavage of terminal olefins to aldehydes with H2O2 catalyzed by copper complex LCu consisted of copper(ii) and ligand 5,7,12,14-tetramethyl-1,4,8,11-tetraazacyclotetradeca-4,7,11,14-tetraene (L) was described.
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Affiliation(s)
- Chun Mi
- Key Laboratory of Green Chemistry and Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu
| | - Xiang-Guang Meng
- Key Laboratory of Green Chemistry and Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu
| | - Xiao-Hong Liao
- Key Laboratory of Green Chemistry and Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu
| | - Xiao Peng
- Key Laboratory of Green Chemistry and Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu
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Fei BL, Yan QL, Wang JH, Liu QB, Long JY, Li YG, Shao KZ, Su ZM, Sun WY. Green Oxidative Degradation of Methyl Orange with Copper(II) Schiff Base Complexes as Photo-Fenton-Like Catalysts. Z Anorg Allg Chem 2014. [DOI: 10.1002/zaac.201300562] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Yu WF, Meng XG, Peng X, Li XH, Liu Y. Selective oxidation of Mandelic acids catalyzed by copper (II) complexes. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.molcata.2013.09.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Alimoradzadeh R, Assadi A, Nasseri S, Mehrasbi MR. Photocatalytic degradation of 4-chlorophenol by UV/H2O2/NiO process in aqueous solution. IRANIAN JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE & ENGINEERING 2012; 9:12. [PMID: 23369233 PMCID: PMC3561057 DOI: 10.1186/1735-2746-9-12] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2012] [Accepted: 11/18/2012] [Indexed: 11/15/2022]
Abstract
The removal of 4-chlorophenol from aqueous phase continues to be an important environmental issue. In this work, the photochemical oxidation of 4-chlorophenol in aqueous solutions in a batch reactor using ultraviolet irradiation, hydrogen peroxide and nickel oxide was studied. The efficiency of the system was evaluated with respect to reaction time, pH, feed concentration of reactants, catalyst load, light intensity, and the reaction rate constant. The concentrations of 4-chlorophenol and chloride ions were determined by high performance liquid chromatography and ion chromatography, respectively. Pure nanosized nickel oxide was characterized by X-ray diffraction and scanning electron microscopy. The results showed that the optimum conditions (the complete 4-chlorophenol removal (100%) at 60 min) were obtained at a neutral pH, with 0.2 mol/L H2O2, and 0.05 g/L of nickel oxide. However, no pH effects were observed in the range of 4–10. Analytical profiles on 4-chlorophenol transformation were consistent with the best line fit of the first-order kinetics. Moreover, the degradation rate constant increased with both UV light intensity and decreasing initial concentration of 4-chlorophenol. Finally, the results of mineralization and chloride ions studies indicated that dechlorination was better accomplished but more time was required to completely mineralize 4-chlorophenol into water and carbon dioxide.
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Affiliation(s)
- Roya Alimoradzadeh
- Department of Environmental Health Engineering, Zanjan University of Medical Sciences, Zanjan, Iran.
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Li J, Hu Y, Lü W, Shi L, Sun Q, Zhou Y, Xu J, Wang J, Shen B. Efficient oxidative degradation of 2-chlorophenol and 4-chlorophenol over supported CuO-based catalysts. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/s1003-9953(10)60217-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Etaiw SEDH, Elsherbiny AS, Badr El-din AS. Characterization and Catalytic Activity of New Metal-organic Frameworks Resulted from Self-assembly of Ph3SnCl, K[Cu(CN)2] and Nitrogen Donor Ligands. CHINESE J CHEM 2011. [DOI: 10.1002/cjoc.201180260] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Li XH, Meng XG, Pang QH, Liu SD, Li JM, Du J, Hu CW. Metal complexes catalyzed oxidative coupling of 2,6-dimethylphenol in micellar media. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.molcata.2010.06.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Liu Y, Pang QH, Meng XG, Liu FR, Li JM, Du J, Hu CW. Oxidative coupling of 2,6-dimethylphenol catalyzed by copper(II) complexes in aqueous solution. J Appl Polym Sci 2010. [DOI: 10.1002/app.32320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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El-Hamshary H, Al-Sigeny S, Ibrahim MM. Catalytic Activity of Polymer Anchored Cu-tren Complex in the Oxidation of 2,6-Di-t-butyl Phenol. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2010. [DOI: 10.1080/10601320903539249] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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