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Cui H, Ma J, Liu Y, Wang C, Song Q. Dimethyl Sulfoxide: An Ideal Electrochemical Probe for Hydroxyl Radical Detection. ACS Sens 2024; 9:1508-1514. [PMID: 38387077 DOI: 10.1021/acssensors.3c02644] [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] [Indexed: 02/24/2024]
Abstract
In situ and real-time determination of hydroxyl radicals (•OH) in physiological and pathological processes is a great challenge due to their ultrashort lifetime. Herein, an electrochemical method was developed by using dimethyl sulfoxide (DMSO) as a trapping probe for rapid determination of •OH in aqueous solution. When DMSO reacted with •OH, an intermediate product methane sulfinic acid (MSIA) was formed, which can be electrochemically oxidized to methanesulfonic acid (MSA) on the glassy carbon electrode (GCE), resulting in a distinct voltammetric signal that is directly proportional to the concentration of •OH. Other commonly encountered reactive oxygen species (ROS), including hypochlorite anions (ClO-), superoxide anions (O2•-), sulfate radicals (SO4•-), and singlet oxygen (1O2), have showed no interference for •OH determination. Thus, an electrochemical method was developed for the determination of •OH, which exhibits a wide linear range (0.4-5120 μM) and a low limit detection of 0.13 μM (S/N = 3) and was successfully applied for the quantification of •OH in aqueous extracts of cigarette tar (ACT). Alternatively, the same reaction mechanism is also applicable for the determination of DMSO, in which a linear range of 40-320 μM and a detection limit 13.3 μM (S/N = 3) was achieved. The method was used for the evaluation of DMSO content in cell cryopreservation medium. This work demonstrated that DMSO can serve as an electrochemical probe and has valuable application potential in radical study, biological research, and environmental monitoring.
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Affiliation(s)
- Haining Cui
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical & Material Engineering Jiangnan University, Wuxi 214122, P. R. China
| | - Jinxin Ma
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical & Material Engineering Jiangnan University, Wuxi 214122, P. R. China
| | - Youyi Liu
- Wuxi School of Medicine, Jiangnan University, Wuxi 214122, P. R. China
| | - Chan Wang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical & Material Engineering Jiangnan University, Wuxi 214122, P. R. China
| | - Qijun Song
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical & Material Engineering Jiangnan University, Wuxi 214122, P. R. China
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2
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Bao S, Yu X, Li X. Study on the dominant mechanism of direct hole oxidation for the photodegradation of tetracycline. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:3786-3799. [PMID: 38091223 DOI: 10.1007/s11356-023-31003-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 11/06/2023] [Indexed: 01/19/2024]
Abstract
Antibiotic contamination has a significant negative impact on China, one of the largest producers and consumers of antibiotics worldwide. In this study, a three-dimensional flower-like structure of CoFe-LDHs was used to efficiently degrade tetracycline (TC) in a system triggered by peroxymonosulfate (PMS) and exposed to visible light. After exploring the effects of different metal ratios, catalyst dosage, initial TC concentrations, and pH, the optimal reaction conditions were determined. In comparison to pure CoFe-LDHs, the TC elimination rate was dramatically increased by the addition of the PMS. The strong environmental resistance, excellent stability and reusability, and universal flexibility were shown. The quenching experiments and electron spin resonance detection showed that the creation of reactive oxygen species was facilitated by the synergistic transmission of electrons between the active bimetallic components. Further, photogenerated holes was the dominant oxidizing species, which contributed more to the degradation of TC. The potential degradation pathways and intermediate toxicity of TC were suggested. This work offers a new method dominated by photogenerated holes for efficiently removing TC effluent.
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Affiliation(s)
- Siqi Bao
- School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun, 130022, People's Republic of China.
- Jilin Provincial International Joint Research Center of Photo-Functional Materials and Chemistry, Changchun, 130022, People's Republic of China.
| | - Xiaotong Yu
- School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun, 130022, People's Republic of China
- Jilin Provincial International Joint Research Center of Photo-Functional Materials and Chemistry, Changchun, 130022, People's Republic of China
| | - Xiaolin Li
- College of Tourism and Geography Science, Jilin Normal University, Changchun, 130022, People's Republic of China
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3
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Du X, Li B, Zhuang Z, Kuang K, Song W, Lin D, Fu C, Wang Z. Salt tide affecting algae-laden micropolluted surface water treatment and membrane performance based on BDD electro-oxidation coupled with ceramic membrane process. ENVIRONMENTAL RESEARCH 2023; 237:116942. [PMID: 37633631 DOI: 10.1016/j.envres.2023.116942] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 08/08/2023] [Accepted: 08/18/2023] [Indexed: 08/28/2023]
Abstract
Harmful algal blooms pose an emerging threat to freshwater ecological security and human health, necessitating further study in offshore areas. In this work, boron-doped diamond electro-oxidation (BDD/EO) coupled with a ceramic membrane filtration was employed aiming to assess the salt tide affecting algae-laden water treatment involving with various natural organic matters (e.g., HA, SA, and BSA). The results have demonstrated that BDD/EO remove chlorophyll from the algae-laden water effectively due to the inactivation of algal cells. Moreover, considering the influence of salt tide, NH3-N would be mainly oxidized through the in-situ generated active chlorine at the electrode-liquid interface. In addition, in three kinds of salt tide affecting algae-laden water, TOC content in BSA group was decreasing remarkably after BDD/EO with TOC removal efficiency above 80%; while those in HA and SA groups had no obvious reducing due to the more algae cells breakage synchronous with HA and SA removal. Based on the fluorescent characteristics and particle size distribution, the generated small molecular organics after electro-oxidation might raise the pore blockage probability and the hydrophobic organic and fluorescent substances were preferentially oxidized in BDD/EO process being beneficial to reducing membrane fouling. Besides, the membrane special flux in three groups were decreasing significantly and the irreversible fouling resistance in SA group accounted for a larger proportion of the total resistance than those of HA and BSA. At last, in BDD/EO-CM process, macromolecular substances degradation rate was greater than that of small molecules based on the molecular weight distribution in three groups of salt tide affected algae-laden water treatment. In a word, this work provides effective and innovative strategies for the harmful algal bloom control and contributes interesting insights of membrane fouling performance of electrochemical coupled ultrafiltration membrane process.
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Affiliation(s)
- Xing Du
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, PR China.
| | - Bingxuan Li
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, PR China.
| | - Zhongjian Zhuang
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, PR China.
| | - Ke Kuang
- Guangzhou Sewage Purification Co.,Ltd., Guangzhou, 510000, PR China.
| | - Wei Song
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, PR China.
| | - Dachao Lin
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, PR China.
| | - Caixia Fu
- Chinese Academy Science, Guangzhou Institute Energy Conversion, Guangzhou, 510640, PR China.
| | - Zhihong Wang
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, PR China.
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4
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Cao H, Pavitt AS, Hudson JM, Tratnyek PG, Xu W. Electron exchange capacity of pyrogenic dissolved organic matter (pyDOM): complementarity of square-wave voltammetry in DMSO and mediated chronoamperometry in water. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2023; 25:767-780. [PMID: 36891820 DOI: 10.1039/d3em00009e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Pyrogenic dissolved organic matter (pyDOM) is derived from black carbon, which is important in the global carbon cycle and other biogeochemical redox processes. The electron-exchange capacity (EEC) of pyDOM has been characterized in water using mediated chronoamperometry (MCA), which gives precise results under specific operational conditions, but the broader significance of these EECs is less clear. In this study, we described a novel but complementary electrochemical approach to quantify EECs of pyDOM without mediation using square-wave voltammetry (SWV) in dimethyl sulfoxide (DMSO). Using both the SWV and MCA methods, we determined EECs for 10 pyDOMs, 6 natural organic matter (NOM) samples, and 2 model quinones. The two methods gave similar EECs for model quinones, but SWV gave larger EECs than MCA for NOM and pyDOM (by several-fold and 1-2 orders of magnitude, respectively). The differences in the EECs obtained by SWV and MCA likely are due to multiple factors, including the potential range of electrons sampled, kinetics of electron transfer from (macro)molecular structures, and coupling of electron and proton transfer steps. Comparison of the results obtained by these two methods should provide new insights into important environmental processes such as carbon-cycling, wildfire recovery, and contaminant mitigation using carbon-based amendments.
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Affiliation(s)
- Han Cao
- Department of Civil and Environmental Engineering, Villanova University, Villanova, Pennsylvania 19085, USA.
| | - Ania S Pavitt
- OHSU/PSU School of Public Health, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239, USA.
| | - Jeffrey M Hudson
- OHSU/PSU School of Public Health, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239, USA.
| | - Paul G Tratnyek
- OHSU/PSU School of Public Health, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239, USA.
| | - Wenqing Xu
- Department of Civil and Environmental Engineering, Villanova University, Villanova, Pennsylvania 19085, USA.
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5
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Munawar T, Nadeem MS, Mukhtar F, Rehman MNU, Riaz M, Batool S, Hasan M, Iqbal F. Transition metal-doped SnO 2 and graphene oxide (GO) supported nanocomposites as efficient photocatalysts and antibacterial agents. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:90995-91016. [PMID: 35881296 DOI: 10.1007/s11356-022-22144-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 07/18/2022] [Indexed: 06/15/2023]
Abstract
In the present work, pristine and transition metal (TM) (W, Ag, Zn)-doped SnO2 nanocrystals using a facile sol-gel approach were synthesized. The grown products were anchored on graphene oxide (GO) sheets via a simple ultrasonication technique to fabricate binary nanocomposites. The structural, optical, and morphological properties of as-synthesized samples were studied by XRD, FTIR, Raman, EDX, UV-Visible, PL, and FE-SEM. The charge transferability of graphene oxide-based samples was investigated by EIS. The XRD exhibited the TM doping in SnO2 and the development of GO-based nanocomposite. FTIR data evidenced the existence of the metal-oxygen bonds. Raman spectra presented the optical phonon modes of SnO2 and the existence of oxygen vacancy defects. FE-SEM images demonstrated the anchoring of particles on the GO sheet, and EDX further approved the existence of desired dopants. The integration of SnO2 with TM doping remarkably reduced optical bandgap (3.65-3.10 eV), which was further decreased (3.10-2.99 eV) by making composite with GO. The photodegradation results exhibited that GO-based nanocomposites have the higher potential to degrade synthetic dyes (methyl red (MR), and methyl orange (MO) and SnZnO2/GO have shown superb photocatalytic performance after 80-min sunlight illumination (99.9% MR and 95.0% MO dyes) with the higher rate constant and superior stability up to 6th cycle against MR dye. The grown samples were tested for bacterial disinfection, and SnZnO2/GO sample showed a higher zone of inhibition towards S. aureus and K. pneumoniae bacteria strains. The greater charge transfer rate and lower recombination of charge carriers in GO-based composites were also observed by EIS and PL analysis. Moreover, the present article ascribed that the photocatalytic and antibacterial properties of bare SnO2 could be improved by TM doping and fabricating their composite with GO.
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Affiliation(s)
- Tauseef Munawar
- Institute of Physics, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan
| | | | - Faisal Mukhtar
- Institute of Physics, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan
| | | | - Muhammad Riaz
- Institute of Physics, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan
| | - Sana Batool
- Institute of Bio-Chemistry, Bio-Technology, and Bioinformatics, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan
| | - Murtaza Hasan
- Institute of Bio-Chemistry, Bio-Technology, and Bioinformatics, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan
| | - Faisal Iqbal
- Institute of Physics, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan.
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6
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Altintas Yildirim O, Pehlivan E. Removal of methylene blue using a novel generation photocatalyst based on nano-SnO 2/wild plumb kernel shell biochar composite. J DISPER SCI TECHNOL 2022. [DOI: 10.1080/01932691.2022.2144878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Ozlem Altintas Yildirim
- Faculty of Engineering and Natural Sciences, Department of Metallurgical and Materials Engineering, Konya Technical University, Konya, Turkey
- Nanotechnology and Advanced Materials Development, Application and Research Center, Konya Technical University, Konya, Turkey
| | - Erol Pehlivan
- Faculty of Engineering and Natural Sciences, Department of Chemical Engineering, Konya Technical University, Konya, Turkey
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7
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Yu J, Yan W, Zhu B, Xu Z, Hu S, Xi W, Lan Y, Han W, Cheng C. Degradation of carbamazepine by high-voltage direct current gas-liquid plasma with the addition of H 2O 2 and Fe 2. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:77771-77787. [PMID: 35687287 DOI: 10.1007/s11356-022-21250-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 05/30/2022] [Indexed: 06/15/2023]
Abstract
Carbamazepine (CBZ) is a typical psychotropic pharmaceutical which is one of the most commonly detected persistent pharmaceuticals in the environment. The degradation of CBZ in the aqueous solution was studied by a direct current (DC) gas-liquid phase discharge plasma combined with different catalysts (H2O2 or Fe2+) in this study. The concentrations of reactive species (H2O2, O3, and NO3-) and •OH radical yield in the liquid were measured during the discharge process. The various parameters that affect the degradation of CBZ, such as discharge powers, initial concentrations, initial pH values, and addition of catalysts, were investigated. The energy efficiency was 25.2 mg·kW-1·h-1 at 35.7 W, and the discharge power at 35.7 W was selected to achieve the optimal balance on the degradation effect and energy efficiency. Both acidic and alkaline solution conditions were conducive to promoting the degradation of CBZ. Both H2O2 and Fe2+ at low concentration (10-100 mg/L of Fe2+, 0.05-2.0 mmol/L of H2O2) were observed contributing to the improvement of the CBZ degradation rate, while the promotional effect of CBZ degradation was weakened even inhibition would occur at high concentrations (100-200 mg/L of Fe2+, 2.0-5.0 mmol/L of H2O2). The degradation rate of CBZ was up to 99.1%, and the total organic carbon (TOC) removal efficiency of CBZ was up to 67.1% in the plasma/Fe2+ (100 mg/L) system at 48 min, which suggested that high degradation rate and mineralization efficiency on CBZ could be achieved by employing Fe2+ as a catalyst. Based on the intermediate products identified by Ultra Performance Liquid Chromatography Tandem Mass Spectrometry (UPLC-MS), the possible degradation pathways were proposed. Finally, the growth inhibition assay with Escherichia coli (E. coli) showed that the toxicity of plasma/Fe2+-treated CBZ solution decreased and a relatively low solution toxicity could be achieved. Thus, the plasma/catalyst could be an effective technology for the degradation of pharmaceuticals in aqueous solutions.
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Affiliation(s)
- Jinming Yu
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei, 230009, People's Republic of China
| | - Weiwen Yan
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei, 230009, People's Republic of China
| | - Bin Zhu
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei, 230009, People's Republic of China
| | - Zimu Xu
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei, 230009, People's Republic of China
| | - Shuheng Hu
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei, 230009, People's Republic of China
| | - Wenhao Xi
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, 230031, People's Republic of China
| | - Yan Lan
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, 230031, People's Republic of China
- Institute of Energy, Hefei Comprehensive National Science Center, Hefei, 230031, People's Republic of China
| | - Wei Han
- Institute of Health and Medical Technology, Anhui Province Key Laboratory of Medical Physics and Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, People's Republic of China
| | - Cheng Cheng
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, 230031, People's Republic of China.
- Institute of Energy, Hefei Comprehensive National Science Center, Hefei, 230031, People's Republic of China.
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8
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Mpeta LS, Nyokong T. Phthalocyanine based fabricated exfoliated graphite photoanode for electrodegradation of 4-acetamidophenol under visible light irradiation. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.114115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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9
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Sun S, Zhang J, Sheng C, Zhong H. The removal of NO from flue gas by NaOH-catalyzed H 2O 2 system: Mechanism exploration and primary experiment. JOURNAL OF HAZARDOUS MATERIALS 2022; 440:129788. [PMID: 35988485 DOI: 10.1016/j.jhazmat.2022.129788] [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: 05/25/2022] [Revised: 07/19/2022] [Accepted: 08/14/2022] [Indexed: 06/15/2023]
Abstract
Currently, most advanced oxidation denitrification technologies require long flue gas residence time to obtain ideal NO removal efficiency. The NaOH-catalyzed H2O2 system proposed in this paper can obtain 98% NO removal efficiency under the condition of flue gas residence time of 3 s. The mechanism of NO removal and H2O2 decomposition to O2 were proposed. It was confirmed with ESR (Electron-spin-resonance), inhibitor experiments and UV-Vis spectrophotometer that the main group in the reaction process was·O2- radicals, which reacted with NO to form ONOO-, and ONOO- would be gradually transformed into NO3- and NO2- in the air. The effect of some primary factors on the NO removal efficiency and the percentage of H2O2 decomposition to O2 were also investigated. The increase of initial pH has a positive effect on NO removal, while the promotion of NO removal by increasing H2O2 concentration and reaction temperature is limited and the increase of NO has a negative effect on NO removal. Initial pH has a dual impact on the percentage of H2O2 decomposition to O2, H2O2 concentration and reaction temperature promote the decomposition of H2O2 to O2, while NO concentration has an inhibiting effect on it.
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Affiliation(s)
- Shujun Sun
- Department of Energy and Environment, Southeast University, Nanjing, 210096 Jiangsu, China
| | - Jun Zhang
- Department of Energy and Environment, Southeast University, Nanjing, 210096 Jiangsu, China.
| | - Changdong Sheng
- Department of Energy and Environment, Southeast University, Nanjing, 210096 Jiangsu, China
| | - Hui Zhong
- Department of Energy and Environment, Southeast University, Nanjing, 210096 Jiangsu, China
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Visible-light-driven photocatalytic inactivation of Escherichia coli by titanium dioxide anchored on natural pyrite. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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11
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Sharma S, Basu S. Construction of an efficient and durable hierarchical porous CuO/SiO2 monolith for synergistically boosting the visible-light-driven degradation of organic pollutants. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119759] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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12
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Sun J, Yang Z, Li L, Zhang Y, Zou G. Highly stable halide perovskite with Na incorporation for efficient photocatalytic degradation of organic dyes in water solution. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:50813-50824. [PMID: 33969454 DOI: 10.1007/s11356-021-14188-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 04/26/2021] [Indexed: 06/12/2023]
Abstract
To overcome water instability and low photocatalytic activity of lead-free halide perovskite for the degradation of organic dyes, we report a novel photocatalyst of lead-free halide perovskite with Na incorporation and employ it for the photocatalytic degradation of organic dyes in water solution under visible light irradiation. The main purpose of this work is to confirm the feasibility of lead-free halide perovskite with Na incorporation for improving the photocatalytic efficiency and recyclability in water solution and further to explore the mechanism behind the enhancement of photocatalytic performance after Na incorporation. The results show that Cs2Ag0.60Na0.40InCl6 can increase the dye degradation rate by at least 50% than the lead-free halide perovskite (Cs2AgInCl6) and the photocatalyst of Ag substituted by Na (Cs2NaInCl6). The degradation efficiency of rhodamine 6G catalyzed by Cs2Ag0.60Na0.40InCl6 reaches 94.94% over 60 min, which is 72% higher than that catalyzed by Cs2NaInCl6 and 27% higher than that catalyzed by Cs2AgInCl6. What's more, the degradation efficiency of methyl orange catalyzed by Cs2Ag0.60Na0.40InCl6 is 90.39% within 150 min, which is 66% higher than that catalyzed by Cs2NaInCl6 and 54% higher than that catalyzed by Cs2AgInCl6. Moreover, the photocatalyst of Cs2Ag0.60Na0.40InCl6 exhibits a desirable recyclability by water exposure, retaining the degradation efficiency over 90% after five cycles. The strengthened photocatalytic performance in the presence of Cs2Ag0.60Na0.40InCl6 is ascribed to an increase of radiative recombination rate and an improvement of average lifetime to 204 ns since an appropriate Na incorporation at the atomic ratio of Na/Ag=4:6 breaks the original crystal lattice and meanwhile increases the electron and hole overlap. The work proves a great potential of halide perovskite with Na incorporation for the highly efficient photocatalytic degradation of organic dyes in water solution.
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Affiliation(s)
- Jifu Sun
- College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao, 266590, Shandong Province, China
| | - Zhijuan Yang
- College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao, 266590, Shandong Province, China
| | - Longzhi Li
- College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao, 266590, Shandong Province, China.
| | - Yue Zhang
- College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao, 266590, Shandong Province, China
| | - Guifu Zou
- College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao, 266590, Shandong Province, China.
- College of Energy, Soochow University, Suzhou, 215006, Jiangsu Province, China.
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13
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Aboudalle A, Djelal H, Domergue L, Fourcade F, Amrane A. A novel system coupling an electro-Fenton process and an advanced biological process to remove a pharmaceutical compound, metronidazole. JOURNAL OF HAZARDOUS MATERIALS 2021; 415:125705. [PMID: 34088190 DOI: 10.1016/j.jhazmat.2021.125705] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 03/03/2021] [Accepted: 03/18/2021] [Indexed: 06/12/2023]
Abstract
The objective of this study was to improve the mineralization of metronidazole, a recalcitrant antibiotic by the development of a new combined process coupling electro-Fenton and a biological process. For biotreatment, various strategies were considered bioaugmentation, bioacclimatation and biostimulation alone or combined. So, the novelty of this strategy is to combine advanced oxidation process with advanced biological process. The conventional biotreatment with activated sludge after 120 h of culture, led to 58.1% mineralization, whereas the pure isolated strains, from activated sludge culture in the presence of metronidazole by-products, identified as Pseudomonas putida (strain A) and Achromobacter sp. (strain B), led to 37.2% and 40.1% respectively. After original acclimation of the isolated strains to electrolysis by-products, the mineralization levels reached 75.6% and 72.9% for strains A and B respectively after 120 h of culture. The results showed that the mineralization of metronidazole by-products was the most important in the case of the combination of autochthonous bioaugmentation and biostimulation, with 96.1% after 120 h of treatment. By coupling the two processes, the global treatment reached therefore a mineralization yield of 97% with a reduction in processing time of 16 days compared to previous conventional biological treatment.
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Affiliation(s)
- Arwa Aboudalle
- Ecole Nationale Supérieure de Chimie de Rennes, Université de Rennes 1, UMR-CNRS 6226, 11 Allée de Beaulieu, CS 50837, 35708 Rennes Cedex 7, France
| | - Hayet Djelal
- Unilasalle-Ecole des Métiers de l'Environnement, Campus de Ker Lann, 35170 Bruz, France.
| | - Lionel Domergue
- Normandie University, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie, 14000 Caen, France
| | - Florence Fourcade
- Ecole Nationale Supérieure de Chimie de Rennes, Université de Rennes 1, UMR-CNRS 6226, 11 Allée de Beaulieu, CS 50837, 35708 Rennes Cedex 7, France
| | - Abdeltif Amrane
- Ecole Nationale Supérieure de Chimie de Rennes, Université de Rennes 1, UMR-CNRS 6226, 11 Allée de Beaulieu, CS 50837, 35708 Rennes Cedex 7, France
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14
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Munawar T, Mukhtar F, Yasmeen S, Naveed-Ur-Rehman M, Nadeem MS, Riaz M, Mansoor M, Iqbal F. Sunlight-induced photocatalytic degradation of various dyes and bacterial inactivation using CuO-MgO-ZnO nanocomposite. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:42243-42260. [PMID: 33797716 DOI: 10.1007/s11356-021-13572-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 03/16/2021] [Indexed: 06/12/2023]
Abstract
Novel tri-phase CuO-MgO-ZnO nanocomposite was prepared using the co-precipitation technique and investigated its physical properties using characterization techniques including XRD, FTIR, Raman, IV, UV-vis, PL, and SEM. The application of grown CuO-MgO-ZnO nanocomposite for the degradation of various dyes under sunlight and antibacterial activity against different bacteria were studied. The XRD confirmed the existence of diffraction peaks related to CuO (monoclinic), MgO (cubic), and ZnO (hexagonal) with CuO phase 40%, MgO 24%, and ZnO 36%. The optical energy gap of nanocomposite was 2.9 eV, which made it an efficient catalyst under sunlight. Raman and FTIR spectra have further confirmed the formation of the nanocomposite. SEM images revealed agglomerated rod-shaped morphology. EDX results showed the atomic percentage of a constituent element in this order Cu>Zn>Mg. PL results demonstrate the presence of intrinsic defects. The photocatalytic activity against methylene blue (MB), methyl orange (MO), rhodamine-B (RhB), cresol red (CR), and P-nitroaniline (P-Nitro) dyes has shown the excellent degradation efficiencies 88.5%, 93.5%, 75.9%, 98.8%, and 98.6% at 5 ppm dye concentration and 82.6%, 83.6%, 64.3%, 93.1%, and 94.3% at 10 ppm dye concentration in 100 min, respectively, under sunlight illumination. The higher degradation is due to the generation of superoxide and hydroxyl radicals. The recyclability test showed the reusability of catalyst up to the 5th cycle. The antibacterial activity against Escherichia coli, Klebsiella pneumoniae, Proteus Vulgaris, Staphylococcus aureus, and Pseudomonas aeruginosa bacteria with the zone of inhibition 30, 31, 30, 30, and 30 mm, respectively, was achieved.
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Affiliation(s)
- Tauseef Munawar
- Institute of Physics, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan
| | - Faisal Mukhtar
- Institute of Physics, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan
| | - Sadaf Yasmeen
- Institute of Physics, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan
| | | | | | - Muhammad Riaz
- Institute of Physics, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan
| | - Muhammad Mansoor
- School of Chemical & Materials Engineering (SCME), National University of Sciences and Technology (NUST), Islamabad, 24090, Pakistan
| | - Faisal Iqbal
- Institute of Physics, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan.
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15
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Jose J, Philip L. Continuous flow pulsed power plasma reactor for the treatment of aqueous solution containing volatile organic compounds and real pharmaceutical wastewater. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 286:112202. [PMID: 33618319 DOI: 10.1016/j.jenvman.2021.112202] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 02/12/2021] [Accepted: 02/12/2021] [Indexed: 06/12/2023]
Abstract
The degradation of four recalcitrant and toxic VOCs (volatile organic compounds) present in pharmaceutical wastewater was studied using a continuous flow plasma reactor, along with evaluating its potential for real effluent treatment. The wastewater was sprayed into the plasma zone of the reactor, and it was re-circulated for better performance. The effect of different HRTs (hydraulic retention time) and initial concentrations of VOCs on the degradation efficiency were evaluated. In continuous reactor, complete removal of 200 mg/L of chloroform, chlorobenzene, and toluene was achieved at a HRT of 33.3 min, with an energy consumption of 22.4 kWh/m3. The study on the effect of different inlet loading rates of VOCs on elimination capacity showed that, the removal was limited initially by diffusion of reactive species and at higher loads, it was limited by insufficient amount of reactive species produced. During degradation of VOC mixture, more than 90% removal of chloroform, chlorobenzene and toluene was achieved at HRT of 33.3 min, and the TOC removal was 78.3%. The degradation efficiency of VOC mixture reduced slightly compared to that of individual compounds, due to insufficient amount of reactive species produced. The COD and BOD removal achieved after 140 min of direct plasma treatment of real pharmaceutical wastewater in batch reactor was 92.7% and 95.2%, respectively. Coagulation pre-treatment did not have a significant effect on the plasma treatment of real wastewater. When pharmaceutical effluent treatment was carried out in continuous flow reactor, 91.8% COD removal, 90.9% BOD removal and more than 90% degradation of all VOCs were achieved at a HRT of 150 min. Plasma treatment alone was capable of effectively treating the real pharmaceutical wastewater without any pre-treatment.
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Affiliation(s)
- Jerin Jose
- Department of Civil Engineering, Indian Institute of Technology Madras, 600036, India.
| | - Ligy Philip
- Department of Civil Engineering, Indian Institute of Technology Madras, 600036, India
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16
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Muñoz-Morales M, Castañeda-Juárez M, Souza FL, Saez C, Cañizares P, Martínez-Miranda V, Linares-Hernández I, Rodrigo MA. Assessing the viability of electro-absorption and photoelectro-absorption for the treatment of gaseous perchloroethylene. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:23657-23666. [PMID: 32948947 DOI: 10.1007/s11356-020-10811-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 09/10/2020] [Indexed: 06/11/2023]
Abstract
This work focuses on the development of electro-absorption and photoelectro-absorption technologies to treat gases produced by a synthetic waste containing the highly volatile perchloroethylene (PCE). To do this, a packed absorption column coupled with a UV lamp and an undivided electrooxidation cell was used. Firstly, it was confirmed that the absorption in a packed column is a viable method to achieve retention of PCE into an absorbent-electrolyte liquid. It was observed that PCE does not only absorb but it was also transformed into phosgene and other by-products. Later, it was confirmed that the electro-absorption process influenced the PCE degradation, favoring the transformation of phosgene into final products. Opposite to what is expected, carbon dioxide is not the main product obtained, but carbon tetrachloride and trichloroacetic acid. Both species are also hazardous but their higher solubility in water opens possibilities for a successful and more environmental-friendly removal. The coupling with UV-irradiation has a negative impact on the degradation of phosgene. Finally, a reaction mechanism was proposed for the degradation of PCE based on the experimental observations. Results were not as expected during the planning of the experimental work but it is important to take in mind that PCE decomposition occurs in wet conditions, regardless of the applied technology, and this work is a first approach to try to solve the treatment problems associated to PCE gaseous waste flows in a realistic way.
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Affiliation(s)
- Martín Muñoz-Morales
- Department of Chemical Engineering, Faculty of Chemical Sciences & Technologies, Universidad de Castilla La Mancha, Campus Universitario s/n 13071, Ciudad Real, Spain
| | - Montse Castañeda-Juárez
- Instituto Interamericano de Tecnología y Ciencias del Agua, Universidad Autónoma del Estado de México, Km.14.5, carretera Toluca-Atlacomulco, C.P. 50200 San Cayetano, Toluca, Estado de México, Mexico
| | - Fernanda Lourdes Souza
- Institute of Chemistry of São Carlos, University of São Paulo, P.O. Box 780, São Carlos, SP, 13560-970, Brazil.
| | - Cristina Saez
- Department of Chemical Engineering, Faculty of Chemical Sciences & Technologies, Universidad de Castilla La Mancha, Campus Universitario s/n 13071, Ciudad Real, Spain
| | - Pablo Cañizares
- Department of Chemical Engineering, Faculty of Chemical Sciences & Technologies, Universidad de Castilla La Mancha, Campus Universitario s/n 13071, Ciudad Real, Spain
| | - Verónica Martínez-Miranda
- Instituto Interamericano de Tecnología y Ciencias del Agua, Universidad Autónoma del Estado de México, Km.14.5, carretera Toluca-Atlacomulco, C.P. 50200 San Cayetano, Toluca, Estado de México, Mexico
| | - Ivonne Linares-Hernández
- Instituto Interamericano de Tecnología y Ciencias del Agua, Universidad Autónoma del Estado de México, Km.14.5, carretera Toluca-Atlacomulco, C.P. 50200 San Cayetano, Toluca, Estado de México, Mexico
| | - Manuel Andrés Rodrigo
- Department of Chemical Engineering, Faculty of Chemical Sciences & Technologies, Universidad de Castilla La Mancha, Campus Universitario s/n 13071, Ciudad Real, Spain.
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Synthesis and Characterization of ZnBi2O4 Nanoparticles: Photocatalytic Performance for Antibiotic Removal under Different Light Sources. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11093975] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This work aims to synthesize a photocatalyst with high photocatalytic performances and explore the possibility of using it for antibiotic removal from wastewater. For that, the spinel ZnBi2O4 (ZBO) was produced with the co-precipitation method and its optical, dielectric, and electrochemical characteristics were studied. The phase has been determined and characterized by X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FT-IR). For the ZBO morphology, a Scanning Electron Microscopy (SEM) has been used. Then, the optical and dielectric properties of ZBO have been evaluated by calculating refractive index n (λ), extinction coefficient (k), dissipation factor (tan δ), relaxation time (τ), and optical conductivity (σopt) using the spectral distribution of T(λ) and R(λ). An optical gap band of 2.8 eV was determined and confirmed. The electrochemical performance of ZBO was investigated and an n-type semiconductor with a flat band potential of 0.54 V_SCE was found. The photocatalytic efficiency of ZBO was investigated in order to degrade the antibiotic Cefixime (CFX) under different light source irradiations to exploit the optical properties. A high CFX degradation of approximately 89% was obtained under solar light (98 mW cm−2) only after 30 min, while 88% of CFX degradation efficiency has been reached after 2 h under UV irradiation (20 mW cm−2); this is in line with the finding of the optical characterizations. According to the obtained data, solar light assisted nanoparticle ZBO can be used successfully in wastewater to remove pharmaceutical products.
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Baaloudj O, Nasrallah N, Kebir M, Khezami L, Amrane A, Assadi AA. A comparative study of ceramic nanoparticles synthesized for antibiotic removal: catalysis characterization and photocatalytic performance modeling. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:13900-13912. [PMID: 33205269 DOI: 10.1007/s11356-020-11616-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 11/09/2020] [Indexed: 06/11/2023]
Abstract
The heterogeneous photocatalysis process has been known to provide significant levels of degradation and mineralization of emerging contaminants including antibiotics. For that, nanoparticle CuCr2O4 (CCO) ceramics were successfully prepared via sol-gel (SG) and co-precipitation (CP) methods to obtain spinel with desired structural features and properties and also to improve the photocatalytic performances. The CCO crystallite phase was produced at 750 °C all ceramics, disregarding the synthesis route. CCO physical and chemical properties were checked by X-ray diffraction (XRD) with Rietveld refinement, Brunauer-Emmett-Teller (BET), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscope (SEM), transmission electron microscope (TEM), and diffuse reflectance solid (DRS). The XRD patterns demonstrated that the synthesized catalysts displayed a small crystallite size between 17.45 and 26.24 nm for SG and 20.97 and 36.86 nm for the CCOCP samples. The observation by SEM and TEM of the nanopowders showed a typical morphology with comparable particle sizes for both synthesized routes (20-30 nm). SG agglomeration rates were higher, and particles stick together more efficiently considering the CP method, while the CCOCP method led to a more significant porosity. Their photocatalytic and adsorption performances were examined for cefaclor (CFC) removal chosen as a target pharmaceutical contaminant in water. The results obtained by the methods differed since nanoparticles prepared by SG led to high photocatalytic activity. In contrast, a high CFC adsorption was observed for those prepared via the CP method, and that agreed with the findings of the characterization analysis. The kinetics of the adsorption process was found to follow the pseudo-second-order rate law. In contrast, the data of the photodegradation process were further found to comply with the Lagergren kinetic law. Nevertheless, the global reaction rate is probably controlled by the intra-particular diffusion of CFC, regardless of the elimination process.
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Affiliation(s)
- Oussama Baaloudj
- Laboratory of Reaction Engineering, Faculty of Mechanical Engineering and Process Engineering, USTHB, 32, Algiers, BP, Algeria
- Univ Rennes-ENSCR/UMR CNRS 6226, Campus de Beaulieu, av. du Général Leclerc, 35700, Rennes, France
| | - Noureddine Nasrallah
- Laboratory of Reaction Engineering, Faculty of Mechanical Engineering and Process Engineering, USTHB, 32, Algiers, BP, Algeria
| | - Mohammed Kebir
- Laboratory of Reaction Engineering, Faculty of Mechanical Engineering and Process Engineering, USTHB, 32, Algiers, BP, Algeria
- Research Unit on Analysis and Technological Development in Environment (UR-ADTE/CRAPC), BP 384, Bou-Ismail Tipaza, Algeria
| | - Lotfi Khezami
- Department of Chemistry, College of Sciences, Imam Mohammad Ibn Saud Islamic University (IMSIU), P.O. Box 5701, Riyadh, 11432, Saudi Arabia
- LaNSER, Research and Technology Centre of Energy (CRTEn), BorjCedriaTechnopark, BP.95, 2050, Hammam-Lif, Tunisia
| | - Abdeltif Amrane
- Univ Rennes-ENSCR/UMR CNRS 6226, Campus de Beaulieu, av. du Général Leclerc, 35700, Rennes, France
| | - Aymen Amin Assadi
- Univ Rennes-ENSCR/UMR CNRS 6226, Campus de Beaulieu, av. du Général Leclerc, 35700, Rennes, France.
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Zhang Z, Wang G, Li W, Zhang L, Guo B, Ding L, Li X. Photocatalytic Activity of Magnetic Nano-β-FeOOH/Fe 3O 4/Biochar Composites for the Enhanced Degradation of Methyl Orange Under Visible Light. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:526. [PMID: 33670815 PMCID: PMC7923089 DOI: 10.3390/nano11020526] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 02/14/2021] [Accepted: 02/16/2021] [Indexed: 01/22/2023]
Abstract
A novel nano-β-FeOOH/Fe3O4/biochar composite with enhanced photocatalytic performance and superparamagnetism was successfully fabricated via an environmentally friendly one-step method. The structural properties of the prepared composite were characterized by scanning electron microscopy, transmission electron microscopy, energy-dispersive spectroscopy, X-ray photoelectron spectroscopy, and a vibrating sample magnetometer. The XPS spectrum of the as-prepared composites confirmed the presence of Fe-O-C bonds between β-FeOOH and biochar, which could be conducive to transfer photo-generated electrons. UV-vis spectroscopy confirmed the existence of an electron-hole connection between β-FeOOH and biochar, which promoted the rapid interface transfer of photogenerated electrons from β-FeOOH to biochar. These novel structures could enhance the response of biochar to accelerate the photoelectrons under visible light for more free radicals. Electron spin resonance analysis and free radical quenching experiments showed that •OH was the primary active species in the photodegradation process of methyl orange by nano-β-FeOOH/Fe3O4/biochar. In the synergistic photocatalytic system, β-FeOOH/Fe3O4/biochar exhibited excellent catalytic activity for the degradation of azo dye (methyl orange), which is 2.03 times higher than that of the original biochar, while the surface area decreased from 1424.82 to 790.66 m2·g-1. Furthermore, β-FeOOH/Fe3O4/biochar maintained a stable structure and at least 98% catalytic activity after reuse, and it was easy to separate due to its superparamagnetism. This work highlights the enhanced photocatalytic performance of β-FeOOH/Fe3O4/biochar material, which can be used in azo dye wastewater treatment.
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Affiliation(s)
- Zheng Zhang
- School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China; (Z.Z.); (G.W.); (L.Z.); (B.G.); (L.D.)
- Research Center for Green and Intelligent Coal Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Guanghua Wang
- School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China; (Z.Z.); (G.W.); (L.Z.); (B.G.); (L.D.)
- Research Center for Green and Intelligent Coal Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Wenbing Li
- School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China; (Z.Z.); (G.W.); (L.Z.); (B.G.); (L.D.)
- Research Center for Green and Intelligent Coal Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Lidong Zhang
- School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China; (Z.Z.); (G.W.); (L.Z.); (B.G.); (L.D.)
- Research Center for Green and Intelligent Coal Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Benwei Guo
- School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China; (Z.Z.); (G.W.); (L.Z.); (B.G.); (L.D.)
| | - Ling Ding
- School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China; (Z.Z.); (G.W.); (L.Z.); (B.G.); (L.D.)
| | - Xiangcheng Li
- The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China
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20
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Hendaoui K, Trabelsi-Ayadi M, Ayari F. Optimization and mechanisms analysis of indigo dye removal using continuous electrocoagulation. Chin J Chem Eng 2021. [DOI: 10.1016/j.cjche.2020.07.065] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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21
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Ben Hafaiedh N, Fourcade F, Bellakhal N, Amrane A. Iron oxide nanoparticles as heterogeneous electro-Fenton catalysts for the removal of AR18 azo dye. ENVIRONMENTAL TECHNOLOGY 2020; 41:2146-2153. [PMID: 30521420 DOI: 10.1080/09593330.2018.1557258] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 11/30/2018] [Indexed: 06/09/2023]
Abstract
Heterogeneous electro-Fenton mineralization of Acid Red 18 (AR18) in aqueous solution was studied with magnetite Fe3O4 (MNPs) and haematite Fe2O3 (HNPs) nanoparticles as catalysts. High mineralization yields of AR18 were obtained with magnetite, 81% TOC removal after 180 min of electrolysis in 40 mg L-1 Fe3O4, pH 3.0, at 50 mA of current intensity and in 50 mM Na2SO4. In order to explain the obtained mineralization yield achieved with MNPs, the quantification of hydrogen peroxide (H2O2), hydroxyl radical (•OH) and iron leaching were performed at 50 and 100 mA. From the high iron concentration found in the bulk solution and the slight impact of the catalyst mass concentration on TOC removal, the formation of hydroxyl radicals occurs mainly through homogeneous process. In the presence of hydroxyl radical scavenger, degradation remained total after 15 min showing the involvement of a direct electrochemical oxidation of the dye at the electrode surface. The hydroxyl radical oxidation is responsible for at least 50% of mineralization.
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Affiliation(s)
- Nouha Ben Hafaiedh
- Institut National des Sciences Appliquees et de Technologie, Tunis, Tunisia
| | - Florence Fourcade
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR - UMR6226, Rennes, France
| | - Nizar Bellakhal
- Institut National des Sciences Appliquees et de Technologie, Tunis, Tunisia
| | - Abdeltif Amrane
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR - UMR6226, Rennes, France
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22
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Lou YY, Geneste F, Soutrel I, Amrane A, Fourcade F. Alachlor dechlorination prior to an electro-Fenton process: Influence on the biodegradability of the treated solution. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2019.115936] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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23
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Khachornsakkul K, Dungchai W. Development of an ultrasound-enhanced smartphone colorimetric biosensor for ultrasensitive hydrogen peroxide detection and its applications. RSC Adv 2020; 10:24463-24471. [PMID: 35516182 PMCID: PMC9055123 DOI: 10.1039/d0ra03792c] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 06/11/2020] [Indexed: 11/21/2022] Open
Abstract
In this work, we developed the first ultrasound technique enhanced smartphone application for highly sensitive determination of hydrogen peroxide (H2O2). The measurement technique is based on the change in color intensity due to the transformation of tetramethylbenzidine (TMB) to oxidized tetramethylbenzidine (oxTMB) by the oxidation process with hydroxyl radical (OH˙) from the oxidation etching of silver nanoparticles (AgNPs) and its ultrasound usability. The oxTMB product occurs without peroxidase and can be detected with a saturation channel using HSV methodology via the application of a smartphone. To prove the peroxidase mimic property, our proposed method was also validated by determination of certain biomolecules, including glucose, uric acid, acetylcholine and total cholesterol, of which the known amounts are a valuable diagnostic tool. The proposed method provided the lowest limits of detection (LOD) of 2.0, 5.0, 12.50, 7.50, and 10.0 nmol L−1 for H2O2, glucose, uric acid, acetylcholine, and cholesterol, respectively, when compared with LODs obtained from other smartphone colorimetric methods. Reproducibility was calculated from the detection of H2O2 at 25.0 and 50.0 nmol L−1 with the highest standard deviations of 3.47 and 4.58%, respectively. Additionally, the determination of all analytes in human urine samples indicated recoveries in the range of 96–104% with the highest relative standard deviation of 3.98%, offering high accuracy and precision. Our research shows the novel compatibility of basic technology and chemical methodology with green chemistry principles by reducing a high-power process and organic solvent as well as exhibiting good colorimetric performance and effective sensitivity and selectivity. Thus, our developed method can be applied for point-of-care medical diagnosis. In this work, we developed the first ultrasound technique enhanced smartphone application for highly sensitive determination of hydrogen peroxide (H2O2).![]()
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Affiliation(s)
- Kawin Khachornsakkul
- Department of Chemistry
- Faculty of Science
- King Mongkut's University of Technology Thonburi
- Bangkok
- Thailand
| | - Wijitar Dungchai
- Department of Chemistry
- Faculty of Science
- King Mongkut's University of Technology Thonburi
- Bangkok
- Thailand
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24
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Carboneras Contreras MB, Fourcade F, Assadi A, Amrane A, Fernandez-Morales FJ. Electro Fenton removal of clopyralid in soil washing effluents. CHEMOSPHERE 2019; 237:124447. [PMID: 31356995 DOI: 10.1016/j.chemosphere.2019.124447] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 07/22/2019] [Accepted: 07/23/2019] [Indexed: 06/10/2023]
Abstract
The removal of a commercial herbicide, based on clopyralid, by means of Electro-Fenton (EF) was studied using a soil washing effluent obtained using synthetic ground water as washing fluid. From the results, it was observed that the degradation and mineralization yields of clopyralid were high, even without the addition of supporting electrolyte. The groundwater could be then used as a sustainable supporting electrolyte. The influence of the minerals constituents, the current and the ferrous ions regeneration was evaluated. The highest hydrogen peroxide production was achieved working at 200 mA but regeneration of ferrous ions was not efficient at this current. Iodide ions were one of the main responsible in the EF efficiency decrease due to their reaction with the produced hydrogen peroxide. Electrochemical study proved that clopyralid was not electroactive and that its degradation was mainly due to radical oxidation. Long duration electrolysis carried out at 200 mA in groundwater provided an improvement of the solution biodegradability after 480 min that can be linked to a significant increase in the carboxylic acids production. These results support the feasibility of applying an EF process in order to carry out a subsequent biological mineralization.
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Affiliation(s)
- María Belén Carboneras Contreras
- Chemical Engineering Department. Research Institute for Chemical and Environmental Technology (ITQUIMA). University of Castilla- La Mancha, 13071, Ciudad Real, Spain; Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, UMR 6226, F-35000, Rennes, France
| | - Florence Fourcade
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, UMR 6226, F-35000, Rennes, France.
| | - Aymen Assadi
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, UMR 6226, F-35000, Rennes, France
| | - Abdeltif Amrane
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, UMR 6226, F-35000, Rennes, France
| | - Francisco Jesus Fernandez-Morales
- Chemical Engineering Department. Research Institute for Chemical and Environmental Technology (ITQUIMA). University of Castilla- La Mancha, 13071, Ciudad Real, Spain.
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A 2.5D Electrode System Constructed of Magnetic Sb–SnO2 Particles and a PbO2 Electrode and Its Electrocatalysis Application on Acid Red G Degradation. Catalysts 2019. [DOI: 10.3390/catal9110875] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A novel electrode consisting of a Ti/PbO2 shell and Fe3O4/Sb–SnO2 particles was developed for electrochemical oxidation treatment of wastewater. Scanning electron microscope (SEM), X-ray diffraction (XRD), the current limiting method, toxicity experiments, and high-performance liquid chromatography were adopted to characterize its morphology, crystal structure, electrochemical properties, the toxicity of the wastewater, and hydroxyl radicals. Acid Red G (ARG), a typical azo dye, was additionally used to test the oxidation ability of the electrode. Results indicated that the 2.5D electrode could significantly improve the mass transfer coefficient and •OH content of the 2D electrode, thereby enhancing the decolorization, degradation, and mineralization effect of ARG, and reducing the toxicity of the wastewater. The experiments revealed that, at higher current density, lower dye concentration and higher temperature, the electrochemical oxidation of ARG favored. Under the condition of 50 mA/cm2, 25 °C, and 100 ppm, the ARG, Chemical Oxygen Demand (COD) and Total Organic Carbon (TOC) removal efficiency reached 100%, 65.89%, and 52.52%, respectively, and the energy consumption and the current efficiency were 1.06 kWh/g COD, 8.29%, and energy consumption for TOC and mineralization current efficiency were 3.81 kWh/g COD, 9.01%. Besides, the Fe3O4/Sb–SnO2 particles after electrolysis for 50 h still had remarkable stability. These results indicated that the ARG solution could be adequately removed on the 2.5D electrode, providing an effective method for wastewater treatment.
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Xu Z, Qin L, Zhang Y, Li X, Nan J, Guo X, Zhang G. In-situ green assembly of spherical Mn-based metal-organic composites by ion exchange for efficient electrochemical oxidation of organic pollutant. JOURNAL OF HAZARDOUS MATERIALS 2019; 369:299-308. [PMID: 30780026 DOI: 10.1016/j.jhazmat.2019.02.050] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Revised: 01/21/2019] [Accepted: 02/13/2019] [Indexed: 06/09/2023]
Abstract
In this study, we develop a facile ion exchange strategy for in-situ assembly of novel spherical metal-organic composites on a large scale. The functional groups (-NH2, -COOH and -SO3H) on chelating and exchange resins had significant effects on improving uniform distribution of metallic sites and metal-support interaction. Without any addition of H2O2, Mn-based metal-organic composites realized the recovery of waste metallic ions and exhibited high activity for methylene blue (MB) electro-Fenton degradation (97.8% decoloration and 54.7% TOC removal) within 150 min under low current density (7.53 mA·cm-2) and 3.0 g·L-1 catalyst dosage. Analyses of performance on different active sites (FeII, MnII, CoII, CeIII and CuII) and supports clearly indicated that synergetic effect of MnII and organic supports played crucial roles in electrochemical oxidation. Kinetic rate constant of 0.037 min-1 and turn over frequency of 0.23 h-1 were much better than those of inorganic supported catalysts, which were attributed to intramolecular electron transfer greatly accelerating MnII/MnIII autocatalytic cycle. Meanwhile, possible degradation pathway of MB was proposed by analysis of oxidative intermediate products. Benefiting from excellent properties and millimeter-level size structure, metal-organic composites can be applied in wide pH range of 2.0-9.0 and easily separated in the industrial application.
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Affiliation(s)
- Zehai Xu
- Institute of Oceanic and Environmental Chemical Engineering, State Key Lab Breeding Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Lei Qin
- Institute of Oceanic and Environmental Chemical Engineering, State Key Lab Breeding Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Yufan Zhang
- Department of Mechanical Engineering, College of Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA
| | - Xiong Li
- Institute of Oceanic and Environmental Chemical Engineering, State Key Lab Breeding Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Jilin Nan
- Institute of Oceanic and Environmental Chemical Engineering, State Key Lab Breeding Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Xinwen Guo
- State Key Laboratory of Fine Chemicals, Department of Catalysis Chemistry and Engineering, Dalian University of Technology, Dalian, 116012, China
| | - Guoliang Zhang
- Institute of Oceanic and Environmental Chemical Engineering, State Key Lab Breeding Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Hangzhou, 310014, China.
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Mi X, Han J, Sun Y, Li Y, Hu W, Zhan S. Enhanced catalytic degradation by using RGO-Ce/WO 3 nanosheets modified CF as electro-Fenton cathode: Influence factors, reaction mechanism and pathways. JOURNAL OF HAZARDOUS MATERIALS 2019; 367:365-374. [PMID: 30609402 DOI: 10.1016/j.jhazmat.2018.12.074] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 12/06/2018] [Accepted: 12/20/2018] [Indexed: 06/09/2023]
Abstract
Development of an efficient cathode in advanced oxidation process is an important challenge. In this work, we synthesized a low-cost, high-catalytic-active and stable reduced graphene oxide (RGO)-Ce/WO3 nanosheets (RCW) to modify carbon felt (CF) as cathode to degrade ciprofloxacin (CIP) in electro-Fenton process. Compared to traditional heterogeneous electro-Fenton process, carbon black was substituted by RGO and poly tetra fluoroethylene was avoided to be used as binder. We found that RCW/CF cathode reached about 100% degradation efficiency of CIP after 1 h and 98.55% mineralization degree after 8 h. Meanwhile, it had a very high current density, about 2.5 times that of CF. RCW/CF cathode produced more O2-, H2O2 and OH via one-electron reduction process (O2→O2- →H2O2). The modified cathode kept a stable performance for high CIP degradation efficiency during 5 cycles. The introduction of RGO could promote electron transfer, and the adding of Ce into the WO3 lattice provided superior conditions for the adsorption and activation of oxygen molecules, thus promoting the formation of active oxygen species on the surface of RCW. This novel RCW/CF composite is an efficient and promising electrode for removal of CIP in the wastewater.
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Affiliation(s)
- Xueyue Mi
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China
| | - Jingjing Han
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University & Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Yan Sun
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China
| | - Yi Li
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University & Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China.
| | - Wenping Hu
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University & Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Sihui Zhan
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China.
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Iffelsberger C, Raith T, Vatsyayan P, Vyskočil V, Matysik FM. Detection and imaging of reactive oxygen species associated with the electrochemical oxygen evolution by hydrodynamic scanning electrochemical microscopy. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.05.115] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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29
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Aboudalle A, Fourcade F, Assadi AA, Domergue L, Djelal H, Lendormi T, Taha S, Amrane A. Reactive oxygen and iron species monitoring to investigate the electro-Fenton performances. Impact of the electrochemical process on the biodegradability of metronidazole and its by-products. CHEMOSPHERE 2018; 199:486-494. [PMID: 29454171 DOI: 10.1016/j.chemosphere.2018.02.075] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 02/09/2018] [Accepted: 02/11/2018] [Indexed: 06/08/2023]
Abstract
In this study, the monitoring of reactive oxygen species and the regeneration of the ferrous ions catalyst were performed during electro-Fenton (EF) process to highlight the influence of operating parameters. The removal of metronidazole (MTZ) was implemented in an electrochemical mono-compartment batch reactor under various ranges of current densities, initial MTZ and ferrous ions concentrations, and pH values. It was found that under 0.07 mA cm-2, 0.1 mM of ferrous ions and pH = 3, the efficiency of 100 mg L-1 MTZ degradation and mineralization were 100% within 20 min and 40% within 135 min of electrolysis, respectively. The highest hydrogen peroxide and hydroxyl radical concentrations, 1.4 mM and 2.28 mM respectively, were obtained at 60 min electrolysis at 0.07 mA cm-2. Improvement of the biodegradability was reached from 60 min of electrolysis with a BOD5/COD ratio above 0.4, which was reinforced by a respirometric study, that supports the feasibility of coupling electro-Fenton and biological treatment for the metronidazole removal.
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Affiliation(s)
- Arwa Aboudalle
- Univ rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR - UMR6226, F-35000 Rennes, France; Laboratoire de Biotechnologies Appliquées, Centre AZM pour la recherche en biotechnologies et ses applications, Ecole doctorale des sciences et technologies, Université Libanaise, Rue Al-Mitein, Tripoli, Lebanon
| | - Florence Fourcade
- Univ rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR - UMR6226, F-35000 Rennes, France.
| | - Aymen Amin Assadi
- Univ rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR - UMR6226, F-35000 Rennes, France
| | - Lionel Domergue
- Univ rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR - UMR6226, F-35000 Rennes, France
| | - Hayet Djelal
- Univ rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR - UMR6226, F-35000 Rennes, France; Ecole des Métiers de l'Environnement, Campus de Ker Lann, 35170 Bruz, France
| | - Thomas Lendormi
- Université Bretagne Sud, FRE CNRS 3744, IRDL, F-56300 Pontivy, France
| | - Samir Taha
- Laboratoire de Biotechnologies Appliquées, Centre AZM pour la recherche en biotechnologies et ses applications, Ecole doctorale des sciences et technologies, Université Libanaise, Rue Al-Mitein, Tripoli, Lebanon; Faculté de Santé Publique, Université Libanaise, quartier Dam et Farz, Tripoli, Lebanon
| | - Abdeltif Amrane
- Univ rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR - UMR6226, F-35000 Rennes, France
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30
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Rutely C. BC, Jean-M. F, Walter Z. T, Xochitl DB, Mika S. Towards reliable quantification of hydroxyl radicals in the Fenton reaction using chemical probes. RSC Adv 2018; 8:5321-5330. [PMID: 35542446 PMCID: PMC9078104 DOI: 10.1039/c7ra13209c] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2017] [Accepted: 01/22/2018] [Indexed: 11/21/2022] Open
Abstract
Quantification of hydroxyl radical concentration using two chemical probes was assessed through the Fenton reaction. The probes were 1,2-benzopyrone (coumarin) for fluorescence and 5,5-dimethyl-1-pyrroline-N-oxide (DMPO) for electron spin resonance (ESR). The corresponding hydroxylated species, namely 7-hydroxycoumarin (7HC) and 2-hydroxy-5,5-dimethyl-1-pyrroline-N-oxide (DMPO-OH adduct), were monitored by fluorescence and ESR-spin trapping techniques, respectively. The experiments were designed according to the theoretical conditions determined for stable fluorescence and EPR signals. The results demonstrate that: the optimal [chemical probe] : [H2O2] ratio predicted by a simplified quasi-steady-state model was in good agreement with the optimal [chemical probe] : [H2O2] ratio observed experimentally for [H2O2] : [Fe2+] = 10, and the proper adjustment of the [chemical probe] : [H2O2] ratio at a given concentration of the Fenton's reagent improves the detected amount of hydroxyl radicals. Finally, using DMPO required a higher concentration compared to coumarin to yield the same amount of ˙OH detected but resulted in a more reliable probe for detecting ˙OH under the consideration of this study. Quantification of hydroxyl radical concentration using two chemical probes was assessed through the Fenton reaction.![]()
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Affiliation(s)
- Burgos Castillo Rutely C.
- Laboratory of Green Chemistry
- School of Engineering Science
- Lappeenranta University of Technology
- Finland
- Separation and Conversion Technologies
| | - Fontmorin Jean-M.
- Laboratory of Green Chemistry
- School of Engineering Science
- Lappeenranta University of Technology
- Finland
| | - Tang Walter Z.
- Department of Civil and Environmental Engineering
- Florida International University
- Miami
- USA
| | - Dominguez-Benetton Xochitl
- Separation and Conversion Technologies
- Flemish Institute for Technological Research (VITO)
- Belgium
- SIM vzw
- Belgium
| | - Sillanpää Mika
- Laboratory of Green Chemistry
- School of Engineering Science
- Lappeenranta University of Technology
- Finland
- Department of Civil and Environmental Engineering
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