1
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Cochran KH, Westerman DC, Montagner CC, Coffin S, Diaz L, Fryer B, Harraka G, Xu EG, Huang Y, Schlenk D, Dionysiou DD, Richardson SD. Chlorination of Emerging Contaminants for Application in Potable Wastewater Reuse: Disinfection Byproduct Formation, Estrogen Activity, and Cytotoxicity. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:704-716. [PMID: 38109774 DOI: 10.1021/acs.est.3c05978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2023]
Abstract
With increasing water scarcity, many utilities are considering the potable reuse of wastewater as a source of drinking water. However, not all chemicals are removed in conventional wastewater treatment, and disinfection byproducts (DBPs) can form from these contaminants when disinfectants are applied during or after reuse treatment, especially if applied upstream of advanced treatment processes to control biofouling. We investigated the chlorination of seven priority emerging contaminants (17β-estradiol, estrone, 17α-ethinylestradiol, bisphenol A (BPA), diclofenac, p-nonylphenol, and triclosan) in ultrapure water, and we also investigated the impact of chlorination on real samples from different treatment stages of an advanced reuse plant to evaluate the role of chlorination on the associated cytotoxicity and estrogenicity. Many DBPs were tentatively identified via liquid chromatography (LC)- and gas chromatography (GC)-high resolution mass spectrometry, including 28 not previously reported. These encompassed chlorinated, brominated, and oxidized analogs of the parent compounds as well as smaller halogenated molecules. Chlorinated BPA was the least cytotoxic of the DBPs formed but was highly estrogenic, whereas chlorinated hormones were highly cytotoxic. Estrogenicity decreased by ∼4-6 orders of magnitude for 17β-estradiol and estrone following chlorination but increased 2 orders of magnitude for diclofenac. Estrogenicity of chlorinated BPA and p-nonylphenol were ∼50% of the natural/synthetic hormones. Potential seasonal differences in estrogen activity of unreacted vs reacted advanced wastewater treatment field samples were observed.
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Affiliation(s)
- Kristin H Cochran
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Danielle C Westerman
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Cassiana C Montagner
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
- Institute of Chemistry, University of Campinas, São Paulo 13083-970, Brazil
| | - Scott Coffin
- Department of Environmental Sciences, University of California, Riverside, California 92521, United States
| | - Lorivic Diaz
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Benjamin Fryer
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Gary Harraka
- Department of Environmental Sciences, University of California, Riverside, California 92521, United States
| | - Elvis Genbo Xu
- Department of Environmental Sciences, University of California, Riverside, California 92521, United States
| | - Ying Huang
- Environmental Engineering and Science Program, Department of Chemical and Environmental Engineering, University of Cincinnati, Cincinnati, Ohio 45221, United States
- School of the Environment, Hangzhou Institute for Advanced Study, UCAS, Hangzhou 310024, China
| | - Daniel Schlenk
- Department of Environmental Sciences, University of California, Riverside, California 92521, United States
| | - Dionysios D Dionysiou
- Environmental Engineering and Science Program, Department of Chemical and Environmental Engineering, University of Cincinnati, Cincinnati, Ohio 45221, United States
| | - Susan D Richardson
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
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2
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Meng FL, Zhang X, Hu Y, Sheng GP. New Barrier Role of Iron Plaque: Producing Interfacial Hydroxyl Radicals to Degrade Rhizosphere Pollutants. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:795-804. [PMID: 38095914 DOI: 10.1021/acs.est.3c08132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2024]
Abstract
Iron plaque, as a natural barrier between rice and soil, can reduce the accumulation of pollutants in rice by adsorption, contributing to the safe production of rice in contaminated soil. In this study, we unveiled a new role of iron plaque, i.e., producing hydroxyl radicals (·OH) by activating root-secreted oxygen to degrade pollutants. The ·OH was produced on the iron plaque surface and then diffused to the interfacial layer between the surface and the rhizosphere environment. The iron plaque activated oxygen via a successive three-electron transfer to produce ·OH, involving superoxide and hydrogen peroxide as the intermediates. The structural Fe(II) in iron plaque played a dominant role in activating oxygen rather than the adsorbed Fe(II), since the structural Fe(II) was thermodynamically more favorable for oxygen activation. The oxygen vacancies accompanied by the structural Fe(II) played an important role in oxygen activation to produce ·OH. The interfacial ·OH selectively degraded rhizosphere pollutants that could be adsorbed onto the iron plaque and was less affected by the rhizosphere environments than the free ·OH. This study uncovered the oxidative role of iron plaque mediated by its produced ·OH, reshaping our understanding of the role of iron plaque as a barrier for rice.
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Affiliation(s)
- Fan-Li Meng
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Xin Zhang
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Yi Hu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Guo-Ping Sheng
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
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3
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Nadali Pishnamaz HM, Ranjbar E, Baghdadi M. Application of iron-intercalated graphite for modification of nickel foam cathode in heterogeneous electro-Fenton system: Bisphenol A removal from water at neutral pH. CHEMOSPHERE 2023; 339:139787. [PMID: 37567264 DOI: 10.1016/j.chemosphere.2023.139787] [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: 04/30/2023] [Revised: 08/01/2023] [Accepted: 08/08/2023] [Indexed: 08/13/2023]
Abstract
The presence of bisphenol A (BPA) in natural waters can be highly harmful due to its high persistence and adverse effects, raising concerns to remove this hazardous compound. Herein, an electro-Fenton system is proposed to eliminate BPA, wherein the iron source in the Fenton reaction is provided by its intercalation into the carbon layers of graphite. The produced heterogeneous catalyst was then coated onto the nickel foam serving as a cathode. The magnetic graphite intercalated compound (mGIC) and the modified cathode (before and after experiments) were characterized by FE-SEM, EDX, XPS, and XRD analyses. Some effective parameters, namely pH (3-9), current density (0-20 mA cm-2), and BPA concentration (0.5-20 mg L-1) were studied. At pH 3, the removal of BPA was 95.52%, and under neutral circumstances, the BPA and TOC removals were 85.70 and 58.12%, respectively at the initial BPA concentration of 10 mg L-1. The proposed system was also applied to several water sources spiked with BPA at the concentration of 5 mg L-1 under neutral pH, which exhibited considerable removal of 99.74%, 99.72%, and 92.70% for groundwater, municipal effluent wastewater, and tap water, respectively. The proposed system was applied for 15 consecutive cycles without showing significant changes in BPA removal, indicating its excellent stability and reusability. Furthermore, based on the analysis of intermediates, a possible decomposition pathway was proposed, indicating a reduction in overall toxicity. By using the proposed heterogeneous electro-Fenton system, iron waste is avoided, and operational costs of treatment can be reduced due to the absence of iron sludge production and catalyst loss.
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Affiliation(s)
| | - Ehsan Ranjbar
- School of Civil Engineering, College of Engineering, University of Tehran, Tehran, Iran; German Environment Agency (UBA), Section II 3.3, Schichauweg 58, 12307 Berlin, Germany; Chair of Water Treatment, Technische Universität Berlin, KF4, Str. des 17. Juni 135, 10623 Berlin, Germany.
| | - Majid Baghdadi
- Department of Environmental Engineering, Graduate Faculty of Environment, University of Tehran, Tehran, Iran.
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Integrated electrocoagulation–photoelectrocatalytic oxidation for effective treatments of aqueous solution bisphenol-A using green-synthesized ZnO nanoparticles. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02473-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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5
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Mohan H, Vadivel S, Lee SW, Lim JM, Lovanh N, Park YJ, Shin T, Seralathan KK, Oh BT. Improved visible-light-driven photocatalytic removal of Bisphenol A using V 2O 5/WO 3 decorated over Zeolite: Degradation mechanism and toxicity. ENVIRONMENTAL RESEARCH 2022; 212:113136. [PMID: 35351453 DOI: 10.1016/j.envres.2022.113136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 03/01/2022] [Accepted: 03/15/2022] [Indexed: 06/14/2023]
Abstract
WO3/Zeolite/V2O5 (TZV) composite synthesized through co-precipitation was used for the degradation of Bisphenol-A (BpA). XRD and Raman spectra were employed to ascertain the crystallinity of the composite. The pristine nature of the compound without any free particles over the zeolite surface was established through FESEM, thus, substantiating the composite character of the material. The enhancement in activity after doping with WO3 was ascertained by DRS-UV. Photocatalytic degradation studies clearly established the superiority of TZV 10 over bare V2O5. Complete BpA degradation (100%) was attained at 50 min of incubation with 0.75 g/L TZV-10 in acidic medium (pH 3) for an initial BpA concentration of 100 mg/L. HPLC-MS/MS analysis was used to decipher the degradation pathway. The catalyst was stable even after 9 cycles. Phytotoxicity studies and lake water treatment results proved the environmental efficiency of the synthesized material.
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Affiliation(s)
- Harshavardhan Mohan
- Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, Jeonbuk, 54596, South Korea; Department of Chemistry, College of Natural Sciences, Jeonbuk National University, Jeonju, Jeonbuk, 54930, South Korea
| | - Sethumathavan Vadivel
- Department of Chemistry, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, 602105, India
| | - Se-Won Lee
- Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, Jeonbuk, 54596, South Korea
| | - Jeong-Muk Lim
- Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, Jeonbuk, 54596, South Korea
| | - Nanh Lovanh
- USDA-ARS, AWMRU, 230 Bennett Lane, Bowling Green, KY, 42104, USA
| | - Yool-Jin Park
- Department of Ecology Landscape Architecture-Design, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, Jeonbuk, 54596, South Korea
| | - Taeho Shin
- Department of Chemistry, College of Natural Sciences, Jeonbuk National University, Jeonju, Jeonbuk, 54930, South Korea
| | - Kamala-Kannan Seralathan
- Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, Jeonbuk, 54596, South Korea.
| | - Byung-Taek Oh
- Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, Jeonbuk, 54596, South Korea.
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Wang XX, Lin YL, Zhang TY, Dong ZY, Luo ZN, Hu CY, Tang YL, Xu B. Feasibility of UVC laser-activated persulfate with concentrated beam for micropollutant degradation in water. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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7
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Ding Z, Ding Y, Liu F, Yang J, Li R, Dang Z, Shi Z. Coupled Sorption and Oxidation of Soil Dissolved Organic Matter on Manganese Oxides: Nano/Sub-nanoscale Distribution and Molecular Transformation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:2783-2793. [PMID: 35084837 DOI: 10.1021/acs.est.1c07520] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
In soil environments, the sequestration and transformation of organic carbon are closely associated with soil minerals. Birnessite (MnO2) is known to strongly interact with soil dissolved organic matter (DOM), but the microscopic distribution and molecular transformation of soil DOM on birnessite are still poorly understood. In this study, the coupled sorption and oxidation of soil DOM on birnessite were investigated at both the microscopic scale and the molecular level. Spherical aberration corrected scanning transmission electron microscopy (Cs-STEM) results revealed, at the nano- to sub-nanoscale, that DOM was located both on the surfaces and within the interflakes or pore spaces of birnessite, and DOM within the interflakes displayed a higher oxidation state than that on the surfaces. Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS) results suggested that a portion of phenolic compounds were preferentially sorbed and oxidized, resulting in the formation of compounds with higher oxygen contents and polymeric products. Our Cs-STEM and FT-ICR-MS results highlighted the significance of organo-mineral associations in the microscopic mineral structure for the reactivity of organic carbon and provided the molecular evidence for the transformation of soil DOM by birnessite, which contributed to the understanding of the dynamics of soil dissolved organic carbon.
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Affiliation(s)
- Zecong Ding
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, School of Environment and Energy, South China University of Technology, Guangzhou, Guangdong 510006, People's Republic of China
| | - Yang Ding
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, School of Environment and Energy, South China University of Technology, Guangzhou, Guangdong 510006, People's Republic of China
| | - Fu Liu
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, School of Environment and Energy, South China University of Technology, Guangzhou, Guangdong 510006, People's Republic of China
| | - Jianjun Yang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, People's Republic of China
| | - Rong Li
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, School of Environment and Energy, South China University of Technology, Guangzhou, Guangdong 510006, People's Republic of China
| | - Zhi Dang
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, School of Environment and Energy, South China University of Technology, Guangzhou, Guangdong 510006, People's Republic of China
| | - Zhenqing Shi
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, School of Environment and Energy, South China University of Technology, Guangzhou, Guangdong 510006, People's Republic of China
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8
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Dos Santos CA, de Souza Cruz DR, da Silva WR, de Jesus GK, Santos AF, da Cunha GC, Wisniewski A, Romão LPC. Heterogeneous electro-Fenton process for degradation of bisphenol A using a new graphene/cobalt ferrite hybrid catalyst. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:23929-23945. [PMID: 33398742 DOI: 10.1007/s11356-020-11913-7] [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: 07/11/2020] [Accepted: 11/30/2020] [Indexed: 06/12/2023]
Abstract
A simple, efficient, environmentally friendly, and inexpensive synthesis route was developed to obtain a magnetic nano-hybrid (GH) based on graphene and cobalt ferrite. Water with a high content of natural organic matter (NOM) was used as solvent and a source of carbon. The presence of NOM in the composition of GH was confirmed by FTIR and Raman spectroscopy, which evidenced the formation of graphene, as also corroborated by XRD analyses. The diffractograms and TEM images showed the formation of a hybrid nanomaterial composed of graphene and cobalt ferrite, with crystallite and particle sizes of 0.83 and 4.0 nm, respectively. The heterogeneous electro-Fenton process (EF-GH) achieved 100% degradation of bisphenol A (BPA) in 50 min, with 80% mineralization in 7 h, at pH 7, using a current density of 33.3 mA cm-2. The high catalytic performance was achieved at neutral pH, enabling substantial reduction of the costs of treatment processes. This work contributes to understanding the role of NOM in the synthesis of a magnetic nano-hybrid based on graphene and cobalt ferrite, for use in heterogeneous catalysis. This nano-hybrid has excellent potential for application in the degradation of persistent organic pollutants found in aquatic environments.
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Affiliation(s)
| | | | - Wenes Ramos da Silva
- Chemistry Department, Federal University of Sergipe (UFS), São Cristovão, SE, 49100-000, Brazil
| | - Gleyce Kelly de Jesus
- Chemistry Department, Federal University of Sergipe (UFS), São Cristovão, SE, 49100-000, Brazil
| | - Alessandra Ferreira Santos
- Chemical Engineering Department, Federal University of Sergipe (UFS), São Cristovão, SE, 49100-000, Brazil
| | - Graziele Costa da Cunha
- Chemistry Department, Federal University of Sergipe (UFS), São Cristovão, SE, 49100-000, Brazil
| | - Alberto Wisniewski
- Chemistry Department, Federal University of Sergipe (UFS), São Cristovão, SE, 49100-000, Brazil
| | - Luciane Pimenta Cruz Romão
- Chemistry Department, Federal University of Sergipe (UFS), São Cristovão, SE, 49100-000, Brazil.
- Institute of Chemistry, UNESP, National Institute of Alternative Technologies for Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactive Materials (INCT-DATREM), P.O. Box 355, Araraquara, SP, 14800-900, Brazil.
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9
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Tran MH, Nguyen HC, Le TS, Dang VAD, Cao TH, Le CK, Dang TD. Degradation of glyphosate herbicide by an electro-Fenton process using carbon felt cathode. ENVIRONMENTAL TECHNOLOGY 2021; 42:1155-1164. [PMID: 31469339 DOI: 10.1080/09593330.2019.1660411] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Accepted: 08/20/2019] [Indexed: 06/10/2023]
Abstract
An electro-Fenton system, which consists of a Pt gauze anode and a commercial carbon felt cathode, is commonly employed to generate in situ hydrogen peroxide, hydroxyl radical and regenerate ferrous catalyst for glyphosate degradation (a widely used herbicide in Vietnam) in aqueous solution. The absorbance measurements used to determine the glyphosate concentration during the electrolysis proved that glyphosate was degraded by pseudo-first-order kinetic. The influence of pH, current density, catalyst concentration and initial content of the glyphosate on mineralisation efficiency were studied by monitoring the total organic carbon (TOC) and hydrogen peroxide concentration during electrolysis. The results show that the maximal removal percentage of glyphosate was 91.91% with applied current density of 10 mA cm-2, pH 3, 0.1 mM Fe2+, 0.05 M Na2SO4, and 0.1 mM glyphosate in 40 min. The degrading rate constant of glyphosate degradation was calculated to be kapp = 0.063 min-1. In this 91.91% removal, 81.65% of glyphosate was mineralised and the remainder consists of intermediates produced during the electro-Fenton process.
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Affiliation(s)
- Manh Hai Tran
- Institute of Environmental Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Hoai Chau Nguyen
- Institute of Environmental Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Thanh Son Le
- Institute of Environmental Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Viet Anh Dung Dang
- School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, Vietnam
| | - The Ha Cao
- Center for Environmental Technology & Sustainable Development (CETASD), Hanoi University of Science (HUS) - Vietnam National University, Hanoi, Vietnam
| | - Cao Khai Le
- Graduate University of Science & Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Trung-Dung Dang
- School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, Vietnam
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10
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Jhones Dos Santos A, Sirés I, Brillas E. Removal of bisphenol A from acidic sulfate medium and urban wastewater using persulfate activated with electroregenerated Fe 2. CHEMOSPHERE 2021; 263:128271. [PMID: 33297215 DOI: 10.1016/j.chemosphere.2020.128271] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 09/02/2020] [Accepted: 09/03/2020] [Indexed: 05/03/2023]
Abstract
Model solutions of bisphenol A (BPA) in 0.050 M Na2SO4 at pH 3.0 have been treated by the electro/Fe2+/persulfate process. The activation of 5.0 mM persulfate with 0.20 mM Fe2+ yielded a mixture of sulfate radical anion (SO4-) and OH, although quenching tests revealed the prevalence of the former species as the main oxidizing agent. In trials run in an IrO2/carbon-felt cell, 98.4% degradation was achieved alongside 61.8% mineralization. The energy consumption was 253.9 kWh (kg TOC)-1, becoming more cost-effective as compared to cells with boron-doped diamond and Pt anodes. Carbon felt outperformed stainless steel as cathode because of the faster Fe2+ regeneration. All BPA concentration decays agreed with a pseudo-fist-order kinetics. The effect of persulfate, Fe2+ and BPA concentrations as well as of the applied current on the degradation process was assessed. Two dehydroxylated and three hydroxylated monobenzenic by-products appeared upon SO4- and OH attack, respectively. The analogous treatment of BPA spiked into urban wastewater yielded a faster degradation and mineralization due to the co-generation of HClO and the larger OH production as SO4- reacted with Cl-.
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Affiliation(s)
- Alexsandro Jhones Dos Santos
- Laboratori d'Electroquímica dels Materials i del Medi Ambient, Departament de Química Física, Facultat de Química, Universitat de Barcelona, Martí i Franquès, 08028, Barcelona, Spain
| | - Ignasi Sirés
- Laboratori d'Electroquímica dels Materials i del Medi Ambient, Departament de Química Física, Facultat de Química, Universitat de Barcelona, Martí i Franquès, 08028, Barcelona, Spain
| | - Enric Brillas
- Laboratori d'Electroquímica dels Materials i del Medi Ambient, Departament de Química Física, Facultat de Química, Universitat de Barcelona, Martí i Franquès, 08028, Barcelona, Spain.
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Insights into the interactions of bisphenol and phthalate compounds with unamended and carnitine-amended montmorillonite clays. Comput Chem Eng 2020; 143. [PMID: 33122868 PMCID: PMC7591107 DOI: 10.1016/j.compchemeng.2020.107063] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Montmorillonite clays could be promising sorbents to mitigate toxic compound exposures. Bisphenols A (BPA) and S (BPS) as well as phthalates, dibutyl phthalate (DBP) and di-2-ethylhexyl phthalate (DEHP), are ubiquitous environmental contaminants linked to adverse health effects. Here, we combined computational and experimental methods to investigate the ability of montmorillonite clays to sorb these compounds. Molecular dynamics simulations predicted that parent, unamended, clay has higher binding propensity for BPA and BPS than for DBP and DEHP; carnitine-amended clay improved BPA and BPS binding, through carnitine simultaneously anchoring to the clay through its quaternary ammonium cation and forming hydrogen bonds with BPA and BPS. Experimental isothermal analysis confirmed that carnitine-amended clay has enhanced BPA binding capacity, affinity and enthalpy. Our studies demonstrate how computational and experimental methods, combined, can characterize clay binding and sorption of toxic compounds, paving the way for future investigation of clays to reduce BPA and BPS exposure.
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12
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Kim M, Kim SH, Lee JH, Kim J. Unravelling lewis acidic and reductive characters of normal and inverse nickel-cobalt thiospinels in directing catalytic H 2O 2 cleavage. JOURNAL OF HAZARDOUS MATERIALS 2020; 392:122347. [PMID: 32097860 DOI: 10.1016/j.jhazmat.2020.122347] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 02/12/2020] [Accepted: 02/17/2020] [Indexed: 06/10/2023]
Abstract
(Inverse) spinel-typed bimetallic sulfides are fascinating H2O2 scissors because of the inclusion of S2-, which can regenerate metals (Mδ+, δ ≤ 2) used to produce •OH via H2O2 dissection. These sulfides, however, were under-explored regarding compositional, structural, and electronic tunabilities based on the proper selection of metal constituents. Motivated by S-modified Niδ+/Coδ+ promising to H2O2 cleavage, Ni2CoS4, NiCo2S4, NiS/CoS were synthesized and contrasted with regards to their catalytic traits. Ni2CoS4 provided the greatest activity in dissecting H2O2 among the catalysts. Nonetheless, Ni2CoS4 catalyzed H2O2 scission primarily via homogeneous catalysis mediated by leached Niδ+/Coδ+. Conversely, NiCo2S4, NiS, and CoS catalyzed H2O2 cleavage mainly via unleached Niδ+/Coδ+-enabled heterogeneous catalysis. Of significance, NiCo2S4 provided Lewis acidic strength favorable to adsorb H2O2 and desorb •OH compared to NiS and CoS, respectively. Of additional significance, NiCo2S4 provided S2- with lesser energy required to reduce M(δ+1)+ via e- transfer than NiS/CoS. Hence, NiCo2S4 prompted H2O2 scission cycle per unit time better than NiS/CoS, as evidenced by kinetic assessments. NiCo2S4 was also superior to Ni2CoS4 because of the elongated lifespan anticipated as •OH producer, resulting from heterogeneous catalysis with moderate Niδ+/Coδ+ leaching. Furthermore, NiCo2S4 revealed the greatest recyclability and mineralization efficiency in decomposing recalcitrants via •OH-mediated oxidation.
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Affiliation(s)
- Minsung Kim
- Materials Architecturing Research Center, Korea Institute of Science and Technology, Seoul, 02792, South Korea; Department of Chemical & Biological Engineering, Korea University, Seoul, 02841, South Korea.
| | - Sang Hoon Kim
- Materials Architecturing Research Center, Korea Institute of Science and Technology, Seoul, 02792, South Korea; Department of Nano & Information Technology in Korea Institute of Science and Technology (KIST) School, University of Science and Technology (UST), Daejeon, 34113, South Korea.
| | - Jung-Hyun Lee
- Department of Chemical & Biological Engineering, Korea University, Seoul, 02841, South Korea.
| | - Jongsik Kim
- Materials Architecturing Research Center, Korea Institute of Science and Technology, Seoul, 02792, South Korea.
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Carrillo-Abad J, Mora-Gómez J, García-Gabaldón M, Ortega E, Mestre S, Pérez-Herranz V. Effect of the CuO addition on a Sb-doped SnO 2 ceramic electrode applied to the removal of Norfloxacin in chloride media by electro-oxidation. CHEMOSPHERE 2020; 249:126178. [PMID: 32087454 DOI: 10.1016/j.chemosphere.2020.126178] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 02/03/2020] [Accepted: 02/09/2020] [Indexed: 06/10/2023]
Abstract
Norfloxacin is employed as in veterinary and human medicine against gram-positive and gram-negative bacteria. Due to the ineffective treatment at the wastewater treatment plants it becomes an emergent pollutant. Electro-oxidation appears as an alternative to its effective mineralization. This work compares Norfloxacin electro-oxidation on different anodic materials: two ceramic electrodes (both based on SnO2 + Sb2O3 with and without CuO, named as CuO and BCE, respectively) and a boron doped diamond (BDD). First, the anodes were characterized by cyclic voltammetry, revealing that NOR direct oxidation occurred at 1.30 V vs. Ag/AgCl. The higher the scan rate the higher both the current density and the anodic potential of the peak. This behavior was analyzed using the Randles-Sevcik equation to calculate the Norfloxacin diffusion coefficient in aqueous media, giving a value of D = 7.80 × 10-6 cm2 s-1 at 25 °C), which is close to the predicted value obtained using the Wilke-Chang correlation. The electrolysis experiments showed that both NOR and TOC decay increased with the applied current density, presenting a pseudo-first order kinetic. All the anodes tested achieved more than 90% NOR degradation at each current density. The CuO is not a good alternative to BCE because although it acts as a catalyst during the first use, it is lost from the anode surface in the subsequent uses. According to their oxidizing power, the anodes employed are ordered as follows: BDD > BCE > CuO.
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Affiliation(s)
- J Carrillo-Abad
- IEC Group, Universitat Politècnica de València, Camí de Vera s/n, 46022, València, Spain
| | - J Mora-Gómez
- IEC Group, Universitat Politècnica de València, Camí de Vera s/n, 46022, València, Spain
| | - M García-Gabaldón
- IEC Group, Universitat Politècnica de València, Camí de Vera s/n, 46022, València, Spain.
| | - E Ortega
- IEC Group, Universitat Politècnica de València, Camí de Vera s/n, 46022, València, Spain
| | - S Mestre
- Instituto de Tecnología Cerámica, Campus Universitario Riu Sec, Av.Vicent Sos Baynat s/n, 12006, Castellón, Spain
| | - V Pérez-Herranz
- IEC Group, Universitat Politècnica de València, Camí de Vera s/n, 46022, València, Spain
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14
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Degradation of pesticide Cartap in Padan 95SP by combined advanced oxidation and electro-Fenton process. J Solid State Electrochem 2020. [DOI: 10.1007/s10008-020-04581-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
AbstractThe electro-Fenton process combined with a boron-doped diamond-positive electrode in a one-compartment cell has shown efficient degradation of Cartap (95% in Padan 95SP) by hydroxyl radicals (•OH) generated in the electro-Fenton and the electrochemical oxidation processes. The influence of added NaOCl in a pretreatment step, effects of H2O2 concentration, Fe2+-ion addition, presence of further metals acting as co-catalysts, and solution pH on the efficiency of Cartap degradation were studied. The concentration of Cartap was determined by UV-vis spectroscopy according to the 5,5-dithiobis-(2-nitrobenzoic acid) procedure. The efficiency reaches approximately 80% when measured as total carbon concentration decrease, even with increased concentrations of H2O2, Fe2+, or metal ions added as co-catalyst. This limitation is presumably due to recalcitrant intermediates, which cannot be destroyed by •OH.
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15
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Dehghani MH, Karri RR, Yeganeh ZT, Mahvi AH, Nourmoradi H, Salari M, Zarei A, Sillanpää M. Statistical modelling of endocrine disrupting compounds adsorption onto activated carbon prepared from wood using CCD-RSM and DE hybrid evolutionary optimization framework: Comparison of linear vs non-linear isotherm and kinetic parameters. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112526] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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16
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Szekeres KJ, Fekete É, Ujvári M, Vesztergom S, Kondratiev VV, Láng GG. Some Observations on the Electrochemical Reactions of Bisphenol A on Polycrystalline Gold in Contact with 0.1 M Aqueous NaClO4 Solution. RUSS J ELECTROCHEM+ 2019. [DOI: 10.1134/s1023193519110132] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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17
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Theoretical Description of Carbon Felt Electrical Properties Affected by Compression. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9194030] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Electro-conductive carbon felt (CF) material is composed by bonding together different lengths of carbon filaments resulting in a porous structure with a significant internal surface that facilitates enhanced electrochemical reactions. Owing to its excellent electrical properties, CF is found in numerous electrochemical applications, such as electrodes in redox flow batteries, fuel cells, and electrochemical desalination apparatus. CF electro-conductivity mostly arises from the close contact between the surface of two electrodes and the long carbon fibers located between them. Electrical conductivity can be improved by a moderate pressing of the CF between conducting electrodes. There exist large amounts of experimental data regarding CF electro-conductivity. However, there is a lack of analytical theoretical models explaining the CF electrical characteristics and the effects of compression. Moreover, CF electrodes in electrochemical cells are immersed in different electrolytes that affect the interconnections of fibers and their contacts with electrodes, which in turn influence conductivity. In this paper, we investigated both the role of CF compression, as well as the impact of electrolyte characteristics on electro-conductivity. The article presents results of measurements, mathematical analysis of CF electrical properties, and a theoretical analytical explanation of the CF electrical conductivity which was done by a stochastic description of carbon filaments disposition inside a CF frame.
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18
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Strongly prolonged hydroxyl radical production for Fenton-like reactions: The golden touch of Cu. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2018.12.060] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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19
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Aftab TB, Hussain A, Li D. Application of a novel bimetallic hydrogel based on iron and cobalt for the synergistic catalytic degradation of Congo Red dye. J CHIN CHEM SOC-TAIP 2019. [DOI: 10.1002/jccs.201800388] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Tallal B. Aftab
- College of Environmental Science and Engineering, State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile IndustryDonghua University Shanghai P.R. China
| | - Asif Hussain
- College of Environmental Science and Engineering, State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile IndustryDonghua University Shanghai P.R. China
| | - Dengxin Li
- College of Environmental Science and Engineering, State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile IndustryDonghua University Shanghai P.R. China
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20
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Bakr AR, Rahaman MS. Crossflow electrochemical filtration for elimination of ibuprofen and bisphenol a from pure and competing electrolytic solution conditions. JOURNAL OF HAZARDOUS MATERIALS 2019; 365:615-621. [PMID: 30471576 DOI: 10.1016/j.jhazmat.2018.11.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Revised: 11/03/2018] [Accepted: 11/05/2018] [Indexed: 06/09/2023]
Abstract
For the first time, a crossflow electrochemical filtration system containing multiwalled carbon nanotubes (MWNTs) blended with buckypaper as a flat sheet dual membrane electrode was investigated for the removal of two contaminants of emerging concern, Ibuprofen and Bisphenol A. Breakthrough experiments revealed that a crossflow configuration could be highly efficient in eliminating both contaminants at applied DC potentials of 2 and 3 V over an extended period, from pure salt electrolyte as well as from synthetic secondary wastewater effluent. The shear flow provided consistent surface coverage resulting in excellent sorption performance. The long residence time of the two contaminants within the membrane (18.3 s) was sufficient enough to allow for almost complete degradation of phenolic aromatic products and quinoid rings and the resulting formation of aliphatic carboxylic acids, which was more evident at a higher applied potential (3 V). The formation of the non-toxic aliphatic carboxylic acids is a clear indication of the superior electrochemical performance of the crossflow mode over the dead-end flow-through system. Moreover, this study provides an in-depth understanding of different factors such as filter surface area and residence time that can greatly affect the removal of the contaminants considered.
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Affiliation(s)
- Ahmed Refaat Bakr
- Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, Quebec, H3G 1M8, Canada
| | - Md Saifur Rahaman
- Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, Quebec, H3G 1M8, Canada.
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21
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Huang Y, Kong M, Westerman D, Xu EG, Coffin S, Cochran KH, Liu Y, Richardson SD, Schlenk D, Dionysiou DD. Effects of HCO 3- on Degradation of Toxic Contaminants of Emerging Concern by UV/NO 3. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:12697-12707. [PMID: 30284820 DOI: 10.1021/acs.est.8b04383] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
This study investigated the significant influence of HCO3- on the degradation of contaminants of emerging concern (CECs) during nitrate photolysis at 254 nm for water reuse applications. The second-order rate constants for the reactions between selected contaminants with carbonate radical (CO3•-) were determined at pH 8.8 and T = 20 °C: estrone ((5.3 ± 1.1) × 108 M-1 s-1), bisphenol A ((2.8 ± 0.2) × 108 M-1 s-1), 17α-ethynylestradiol ((1.6 ± 0.3) × 108 M-1 s-1), triclosan ((4.2 ± 1.4) × 107 M-1 s-1), diclofenac ((2.7 ± 0.7) × 107 M-1 s-1), atrazine ((5.7 ± 0.1) × 106 M-1 s-1), carbamazepine ((4.2 ± 0.01) × 106 M-1 s-1), and ibuprofen ((1.2 ± 1.1) × 106 M-1 s-1). Contributions from UV, reactive nitrogen species (RNS), hydroxyl radical (•OH), and CO3•- to the CEC decomposition in UV/NO3- in the presence and absence of HCO3- were investigated. In addition, possible transformation products and degradation pathways of triclosan, diclofenac, bisphenol A, and estrone in UV/NO3-/HCO3- were proposed based on the mass (MS) and MS2 spectra. Significant reduction in the cytotoxicity of bisphenol A was observed after the treatment with UV/NO3-/HCO3-.
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Affiliation(s)
- Ying Huang
- Environmental Engineering and Science, Department of Chemical and Environmental Engineering , University of Cincinnati , Cincinnati , Ohio 45221 , United States
| | - Minghao Kong
- Environmental Engineering and Science, Department of Chemical and Environmental Engineering , University of Cincinnati , Cincinnati , Ohio 45221 , United States
| | - Danielle Westerman
- Department of Chemistry and Biochemistry , University of South Carolina , Columbia , South Carolina 29208 , United States
| | - Elvis Genbo Xu
- Department of Environmental Sciences , University of California , Riverside , California 92521 , United States
| | - Scott Coffin
- Department of Environmental Sciences , University of California , Riverside , California 92521 , United States
| | - Kristin H Cochran
- Department of Chemistry and Biochemistry , University of South Carolina , Columbia , South Carolina 29208 , United States
| | - Yiqing Liu
- Environmental Engineering and Science, Department of Chemical and Environmental Engineering , University of Cincinnati , Cincinnati , Ohio 45221 , United States
- Faculty of Geosciences and Environmental Engineering , Southwest Jiaotong University , Chengdu 611756 , China
| | - Susan D Richardson
- Department of Chemistry and Biochemistry , University of South Carolina , Columbia , South Carolina 29208 , United States
| | - Daniel Schlenk
- Department of Environmental Sciences , University of California , Riverside , California 92521 , United States
| | - Dionysios D Dionysiou
- Environmental Engineering and Science, Department of Chemical and Environmental Engineering , University of Cincinnati , Cincinnati , Ohio 45221 , United States
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22
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Dong H, Zhang X, Yu H, Yu H. Graphene-doped carbon black gas diffusion electrode for nonmetallic electrochemical advanced oxidation process under mild conditions. ENVIRONMENTAL TECHNOLOGY 2018; 39:2959-2966. [PMID: 28825349 DOI: 10.1080/09593330.2017.1370022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Graphene-doped (<3 wt%) carbon black gas diffusion electrodes (GDEs) were prepared as the cathode for nonmetallic electrochemical advanced oxidation process (EAOP) in the neutral environment. The elemental composition, porous structure and active surface area were characterized and the concentration of Hydrogen peroxide (H2O2) and OH• were determined. Bisphenol A (BPA) was used as a model pollutant to assess the performance of the EAOP for organic wastewater treatment. The results showed that oxygen in the atmosphere was reduced to OH• on the GDE, where carbon black catalyzed oxygen reduction to H2O2 and graphene provide Π-electrons for the following H2O2 decomposition. BPA with initial concentration of 20 mg L-1 was completely removed within 30 min and the total organic carbon removal reached 44.60%. The EAOP with the graphene-doped carbon black GDEs exhibited significant advantages for organic wastewater treatment.
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Affiliation(s)
- Heng Dong
- a MOE Key Laboratory of Pollution Processes and Environmental Criteria , College of Environmental Science and Engineering, Nankai University , Tianjin , People's Republic of China
| | - Xi Zhang
- a MOE Key Laboratory of Pollution Processes and Environmental Criteria , College of Environmental Science and Engineering, Nankai University , Tianjin , People's Republic of China
| | - Han Yu
- a MOE Key Laboratory of Pollution Processes and Environmental Criteria , College of Environmental Science and Engineering, Nankai University , Tianjin , People's Republic of China
| | - Hongbing Yu
- a MOE Key Laboratory of Pollution Processes and Environmental Criteria , College of Environmental Science and Engineering, Nankai University , Tianjin , People's Republic of China
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23
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Electric and Hydraulic Properties of Carbon Felt Immersed in Different Dielectric Liquids. MATERIALS 2018; 11:ma11040650. [PMID: 29690636 PMCID: PMC5951534 DOI: 10.3390/ma11040650] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 04/12/2018] [Accepted: 04/20/2018] [Indexed: 11/16/2022]
Abstract
Electroconductive carbon felt (CF) material, having a permeable structure and significant electroconductive surface, is widely used for electrodes in numerous electrochemical applications such as redox flow batteries, fuel cells, electrochemical desalination apparatus, etc. The internal structure of CF is composed of different lengths of carbon filaments bonded together. This structure creates a large number of stochastically oriented and stochastically linked channels that have different lengths and cross sections. Therefore, the CF hydraulic permeability is similar to that of porous media and is determined by the internal empty volume and arrangement of carbon fibers. Its electroconductivity is ensured by the conductivity of the carbon filaments and by the electrical interconnections between fibers. Both of these properties (permeability and electrical conductivity) are extremely important for the efficient functioning of electrochemical devices. However, their influences counter each other during CF compressing. Increasing the stress on a felt element provides supplementary electrical contacts of carbon filaments, which lead to improved electrical conductivity. Thus, the active surface of the felt electrode is increased, which also boosts redox chemical reactions. On the other hand, compressed felt possesses reduced hydrodynamic permeability as a result of a diminished free volume of porous media and intrinsic channels. This causes increasing hydrodynamic expenditures of electrolyte pumping through electrodes and lessened cell (battery) efficiency. The designer of specific electrochemical systems has to take into account both of these properties when selecting the optimal construction for a cell. This article presents the results of measurements and novel approximating expressions of electrical and hydraulic characteristics of a CF during its compression. Since electrical conductivity plays a determining role in providing electrochemical reactions, it was measured in dry conditions and when the CF was immersed in several non-conductive liquids. The choice of such liquids prevented side effects of electrolyte ionic conductivity impact on electrical resistivity of the CF. This gave an opportunity to determine the influences of dielectric parameters of electrolytes to increase or decrease the density of interconnectivity of carbon fibers either between themselves or between them and electrodes. The experiments showed the influence of liquid permittivity on the conductivity of CF, probably by changing the density of fiber interconnections inside the felt.
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24
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Ahmadzadeh S, Dolatabadi M. Modeling and kinetics study of electrochemical peroxidation process for mineralization of bisphenol A; a new paradigm for groundwater treatment. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.01.080] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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25
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Burgos-Castillo RC, Sirés I, Sillanpää M, Brillas E. Application of electrochemical advanced oxidation to bisphenol A degradation in water. Effect of sulfate and chloride ions. CHEMOSPHERE 2018; 194:812-820. [PMID: 29268102 DOI: 10.1016/j.chemosphere.2017.12.014] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 12/03/2017] [Accepted: 12/04/2017] [Indexed: 05/24/2023]
Abstract
Electrochemical oxidation with electrogenerated H2O2 (EO- H2O2), electro-Fenton (EF), photoelectro-Fenton (PEF) and solar PEF (SPEF) have been applied to mineralize bisphenol A solutions in 0.050 M Na2SO4 or 0.008 M NaCl + 0.047 M Na2SO4 at pH 3.0. The assays were performed in an undivided cell with a boron-doped diamond (BDD) anode and an air-diffusion cathode for continuous H2O2 production. The PEF and SPEF processes yielded almost total mineralization due to the potent synergistic action of generated hydroxyl radicals and active chlorine, in conjunction with the photolytic action of UV radiation. The higher intensity of UV rays from sunlight explained the superior oxidation ability of SPEF. The effect of applied current density was studied in all treatments, whereas the role of bisphenol A concentration was examined in PEF. Bisphenol A abatement followed a pseudo-first-order kinetics, which was very quick in SPEF since UV light favored a large production of hydroxyl radicals from Fenton's reaction. Eight non-chlorinated and six chlorinated aromatics were identified as primary products in the chloride matrix. Ketomalonic, tartronic, maleic and oxalic acids were detected as final short-chain aliphatic carboxylic acids. The large stability of Fe(III)-oxalate complexes in EF compared to their fast photomineralization in PEF and PEF accounted for by the superior oxidation power of the latter processes.
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Affiliation(s)
- Rutely C Burgos-Castillo
- Laboratory of Green Chemistry, School of Engineering Science, Lappeenranta University of Technology, Sammonkatu 12, FI-50130 Mikkeli, Finland.
| | - Ignasi Sirés
- Laboratori d'Electroquímica de Materials i del Medi Ambient, Departament de Química Física, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
| | - Mika Sillanpää
- Laboratory of Green Chemistry, School of Engineering Science, Lappeenranta University of Technology, Sammonkatu 12, FI-50130 Mikkeli, Finland
| | - Enric Brillas
- Laboratori d'Electroquímica de Materials i del Medi Ambient, Departament de Química Física, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain.
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26
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Huang GX, Wang CY, Yang CW, Guo PC, Yu HQ. Degradation of Bisphenol A by Peroxymonosulfate Catalytically Activated with Mn 1.8Fe 1.2O 4 Nanospheres: Synergism between Mn and Fe. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:12611-12618. [PMID: 28985472 DOI: 10.1021/acs.est.7b03007] [Citation(s) in RCA: 302] [Impact Index Per Article: 43.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A high-efficient, low-cost, and eco-friendly catalyst is highly desired to activate peroxides for environmental remediation. Due to the potential synergistic effect between bimetallic oxides' two different metal cations, these oxides exhibit superior performance in the catalytic activation of peroxymonosulfate (PMS). In this work, novel Mn1.8Fe1.2O4 nanospheres were synthesized and used to activate PMS for the degradation of bisphenol A (BPA), a typical refractory pollutant. The catalytic performance of the Mn1.8Fe1.2O4 nanospheres was substantially greater than that of the Mn/Fe monometallic oxides and remained efficient in a wide pH range from 4 to 10. More importantly, a synergistic effect between solid-state Mn and Fe was identified in control experiments with Mn3O4 and Fe3O4. Mn was inferred to be the primary active site in the surface of the Mn1.8Fe1.2O4 nanospheres, while Fe(III) was found to play a key role in the synergism with Mn by acting as the main adsorption site for the reaction substrates. Both sulfate and hydroxyl radicals were generated in the PMS activation process. The intermediates of BPA degradation were identified and the degradation pathways were proposed. This work is expected to help to elucidate the rational design and efficient synthesis of bimetallic materials for PMS activation.
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Affiliation(s)
- Gui-Xiang Huang
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Chemistry, University of Science & Technology of China , Hefei, 230026, China
| | - Chu-Ya Wang
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Chemistry, University of Science & Technology of China , Hefei, 230026, China
| | - Chuan-Wang Yang
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Chemistry, University of Science & Technology of China , Hefei, 230026, China
| | - Pu-Can Guo
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Chemistry, University of Science & Technology of China , Hefei, 230026, China
| | - Han-Qing Yu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Chemistry, University of Science & Technology of China , Hefei, 230026, China
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Bakr AR, Rahaman MS. Removal of bisphenol A by electrochemical carbon-nanotube filter: Influential factors and degradation pathway. CHEMOSPHERE 2017; 185:879-887. [PMID: 28746997 DOI: 10.1016/j.chemosphere.2017.07.082] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2017] [Revised: 07/14/2017] [Accepted: 07/15/2017] [Indexed: 06/07/2023]
Abstract
Bisphenol A is a chemical with hazardous health effects that is largely used in the manufacture of extensively used products including adhesives, plastics, powder paints, thermal paper and paper coatings, and epoxy resin, and is reported to exist in nature in an accumulative manner. In this study, both pristine and boron-doped multiwalled carbon nanotubes (MWNTs) were employed as filtration and electrochemical filtration materials, resulting in a significant removal of bisphenol A with identical performance for both MWNTs types. It was shown that the presence of salt is not critical for the greatest contaminant removal efficiency, likely due to the vital role of other electroactive species (e.g. reactive oxygen species). Near complete removal of 1 mg L-1 bisphenol A at 2 and 3 V of applied DC potentials was achieved, indicating that the electrochemical filtration process is voltage dependent at both 2 and 3 V. Increasing the residence time by 7.4 fold (from 2.0 to 14.9 s) resulted in a significant removal of bisphenol A and its toxic byproducts, up to 424 min of electrochemical filtration time at 3 V of applied potential. Based on these results, electrochemical filtration using MWNTs is considered a promising technology for the removal of the accumulative bisphenol A and the reduction of its hazardous effects in waters.
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Affiliation(s)
- Ahmed Refaat Bakr
- Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, Quebec, H3G 1M8, Canada
| | - Md Saifur Rahaman
- Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, Quebec, H3G 1M8, Canada.
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Chen Z, Zhang Y, Zhou L, Zhu H, Wan F, Wang Y, Zhang D. Performance of nitrogen-doped graphene aerogel particle electrodes for electro-catalytic oxidation of simulated Bisphenol A wastewaters. JOURNAL OF HAZARDOUS MATERIALS 2017; 332:70-78. [PMID: 28282572 DOI: 10.1016/j.jhazmat.2017.02.048] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Revised: 01/23/2017] [Accepted: 02/24/2017] [Indexed: 06/06/2023]
Abstract
The treatment of effluent containing Bisphenol A (BPA) was investigated experimentally using nitrogen-doped graphene aerogel (NGAs) as particle electrodes in a three-dimensional electrode reactor for the electrochemical treatment was studied. The effects of the cell voltage, pH, the ratio of NGAs mass to solution volume and repeated times on the removal efficiency were investigated. Compared with commercial carbon particle electrodes, the NGAs exhibited stronger activity to remove BPA simulated wastewater. For 15mgL-1 of BPA solution, the degradation rate of BPA exceeded 90% after treatment for only 30min under the optimum conditions. The CODCr removal rate of BPA was 85%. Moreover, in the process of reused 50 times, the degradation rate of BPA can be kept in more than 85%. The CODCr removal rate was stable at about 73%. The intermediate products of electrochemical degradation of BPA were identified by liquid chromatography-mass spectrometry liquid chromatography (LC-MS), and a probable BPA degradation pathway was proposed. It was considered that OH radicals by water electrolysis could constantly attack the aromatic ring to form various intermediates such as hydroxylated-BPA, isopropylphenol, hydroquinone, phenol and butantetraol, maleic acid, oxalic acid. These compounds were eventually mineralized by electrolysis into CO2 and H2O.
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Affiliation(s)
- Zhuang Chen
- Environmental Research Academy, North China Electric Power University, Beijing 102206, China; Labortory of Environmental Remediation and Functional Material, Suzhou Research Academy of North China Electric Power University, Suzhou, Jiangsu, 215026, P.R. China
| | - Yimei Zhang
- Environmental Research Academy, North China Electric Power University, Beijing 102206, China; Labortory of Environmental Remediation and Functional Material, Suzhou Research Academy of North China Electric Power University, Suzhou, Jiangsu, 215026, P.R. China.
| | - Lincheng Zhou
- Labortory of Environmental Remediation and Functional Material, Suzhou Research Academy of North China Electric Power University, Suzhou, Jiangsu, 215026, P.R. China
| | - Hao Zhu
- Labortory of Environmental Remediation and Functional Material, Suzhou Research Academy of North China Electric Power University, Suzhou, Jiangsu, 215026, P.R. China
| | - Fei Wan
- Labortory of Environmental Remediation and Functional Material, Suzhou Research Academy of North China Electric Power University, Suzhou, Jiangsu, 215026, P.R. China
| | - Yue Wang
- Labortory of Environmental Remediation and Functional Material, Suzhou Research Academy of North China Electric Power University, Suzhou, Jiangsu, 215026, P.R. China
| | - Dandan Zhang
- Environmental Research Academy, North China Electric Power University, Beijing 102206, China
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Liu X, Zhu Y, Li W, Wang F, Li H, Ren C, Zhao Y. Modified surficial chemistry micro-circumstance and mid-gap effect on photocatalytic ability of tetracycline by introducing of nitrogen in Fe2(MoO4)3. MOLECULAR CATALYSIS 2017. [DOI: 10.1016/j.mcat.2017.02.034] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Juhola R, Heponiemi A, Tuomikoski S, Hu T, Vielma T, Lassi U. Preparation of Novel Fe Catalysts from Industrial By-Products: Catalytic Wet Peroxide Oxidation of Bisphenol A. Top Catal 2017. [DOI: 10.1007/s11244-017-0829-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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31
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Park CM, Heo J, Yoon Y. Oxidative degradation of bisphenol A and 17α-ethinyl estradiol by Fenton-like activity of silver nanoparticles in aqueous solution. CHEMOSPHERE 2017; 168:617-622. [PMID: 27838031 DOI: 10.1016/j.chemosphere.2016.11.016] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 11/02/2016] [Accepted: 11/04/2016] [Indexed: 06/06/2023]
Abstract
Silver nanoparticles (AgNPs) have been reported to have antibacterial activities and cytotoxicity, resulting from the dissolved silver cation (Ag+) and its soluble complexes. However, to our knowledge, little has been reported about their potential use in degrading organic contaminants such as endocrine-disrupting compounds in aqueous solution. In this first report on the subject, we examined the effectiveness of the oxidative degradation of bisphenol A (BPA) and 17α-ethinyl estradiol (EE2) in water by reactive oxygen species formed during the decomposition of H2O2, assisted by polyvinylpyrrolidone (PVP)-stabilized AgNPs. The dissolution of AgNPs accompanied generation of OH at low pH. The fully dispersed PVP-AgNPs in the presence of H2O2 exhibited fast degradation kinetics for EE2 at a typical aquatic condition of pH (6-7). The oxidation kinetics of BPA and EE2 by PVP-AgNPs can be interpreted using three different modeling approaches: an initial pseudo-first-order, a retarded first-order rate, and Behnajady-Modirshahla-Ghanbery kinetic equation. The findings showed that AgNPs may have potential to facilitate the in situ oxidation for emerging contaminants in the aqueous environment.
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Affiliation(s)
- Chang Min Park
- Department of Civil and Environmental Engineering, University of South Carolina, 300 Main Street, Columbia, SC 29208, USA
| | - Jiyong Heo
- Department of Civil and Environmental Engineering, Korea Army Academy at Young-Cheon, 495 Hogook-ro, Kokyungmeon, Young-Cheon, Gyeongbuk 38900, South Korea
| | - Yeomin Yoon
- Department of Civil and Environmental Engineering, University of South Carolina, 300 Main Street, Columbia, SC 29208, USA.
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32
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Chmayssem A, Taha S, Hauchard D. Scaled-up electrochemical reactor with a fixed bed three-dimensional cathode for electro-Fenton process: Application to the treatment of bisphenol A. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2016.12.183] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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33
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Li Y, Han J, Xie B, Li Y, Zhan S, Tian Y. Synergistic degradation of antimicrobial agent ciprofloxacin in water by using 3D CeO2/RGO composite as cathode in electro-Fenton system. J Electroanal Chem (Lausanne) 2017. [DOI: 10.1016/j.jelechem.2016.11.057] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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34
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Gargouri B, Gargouri OD, Khmakhem I, Ammar S, Abdelhèdi R, Bouaziz M. Chemical composition and direct electrochemical oxidation of table olive processing wastewater using high oxidation power anodes. CHEMOSPHERE 2017; 166:363-371. [PMID: 27700999 DOI: 10.1016/j.chemosphere.2016.09.080] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Revised: 09/18/2016] [Accepted: 09/19/2016] [Indexed: 06/06/2023]
Abstract
Table olive processing wastewater (TOW) is a notoriously polluting due to its high organic and phenol content. To reduce them, an electrochemical process has been studied for the treatment of this effluent. Experiments were performed with a cell equipped with lead dioxide (PbO2) or boron-doped diamond (BDD) as anode and platinum as cathode, where Table Olive Wastewater (TOW) were destroyed by hydroxyl radicals formed at the anode surface from water oxidation. The comparative study of both systems shows the performance of the BDD anode compared to PbO2, explained by the large amounts of hydroxyl radicals generated effective at BDD anode and its synthesis characteristics. Using LC/MS analysis, it was possible to determine hydroxytyrosol, as major phenolic compounds, in table olive processing wastewater and its concentration reach 890 mg L-1. A possible reaction mechanism oxidation for hydroxytyrosol was proposed. The kinetics decays for hydroxytyrosol degradation on PbO2 anode follows a pseudo-first order reaction with a rate constant 0.9 h-1 for japp value 20 mA cm-2.
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Affiliation(s)
- Boutheina Gargouri
- Laboratoire d'Electrochimie et Environnement, Ecole Nationale d'Ingénieurs de Sfax, Université de Sfax, BP «1173», 3038, Sfax, Tunisia
| | - Olfa Dridi Gargouri
- Laboratoire d'Electrochimie et Environnement, Ecole Nationale d'Ingénieurs de Sfax, Université de Sfax, BP «1173», 3038, Sfax, Tunisia
| | - Ibtihel Khmakhem
- Laboratoire d'Electrochimie et Environnement, Ecole Nationale d'Ingénieurs de Sfax, Université de Sfax, BP «1173», 3038, Sfax, Tunisia; Laboratoire d'Analyse, Valorisation et Sécurité des Aliments, Ecole Nationale d'Ingénieurs de Sfax (ENIS), Université de Sfax, BP 1175, 3038, Sfax, Tunisia
| | - Sonda Ammar
- Laboratoire d'Electrochimie et Environnement, Ecole Nationale d'Ingénieurs de Sfax, Université de Sfax, BP «1173», 3038, Sfax, Tunisia
| | - Ridha Abdelhèdi
- Laboratoire d'Electrochimie et Environnement, Ecole Nationale d'Ingénieurs de Sfax, Université de Sfax, BP «1173», 3038, Sfax, Tunisia
| | - Mohamed Bouaziz
- Laboratoire d'Electrochimie et Environnement, Ecole Nationale d'Ingénieurs de Sfax, Université de Sfax, BP «1173», 3038, Sfax, Tunisia.
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35
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Rivera-Utrilla J, Daiem MMA, Sánchez-Polo M, Ocampo-Pérez R, López-Peñalver JJ, Velo-Gala I, Mota AJ. Removal of compounds used as plasticizers and herbicides from water by means of gamma irradiation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 569-570:518-526. [PMID: 27366982 DOI: 10.1016/j.scitotenv.2016.06.114] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 06/07/2016] [Accepted: 06/15/2016] [Indexed: 06/06/2023]
Abstract
Gamma radiation has been used to induce the degradation of compounds used as plasticizers and herbicides such as phthalic acid (PA), bisphenol A (BPA), diphenolic acid (DPA), 2,4-dichlorophenoxy-acetic acid (2,4-D), and 4-chloro-2-methylphenoxyacetic acid (MCPA) in aqueous solution, determining the dose constants, removal percentages, and radiation-chemical yields. The reaction rate constants of hydroxyl radical (HO), hydrated electron (eaq(-)) and hydrogen atom (H) with these pollutants were also obtained by means of competition kinetics, using 3-aminopyridine and atrazine as reference compounds. The results indicated that the elimination of these pollutants with gamma radiation mainly follows the oxidative pathway through reaction with HO radicals. The degradation by-products from the five pollutants were determined, detecting that the hydroxylation of the corresponding parent compounds was the main chemical process in the degradation of the pollutants. Moreover, a high decrease in the chemical oxygen demand has been observed for all pollutants. As expected, the degradation by-products generated by the irradiation of PA, BPA and DPA showed a lower toxicity than the parent compounds, however, in the case of 2,4-D and MCPA irradiation, interestingly, their by-products were more toxic than the corresponding original compounds.
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Affiliation(s)
- José Rivera-Utrilla
- Inorganic Chemistry Department, Faculty of Science, University of Granada, 18071 Granada, Spain.
| | - Mahmoud M Abdel Daiem
- Environmental Engineering Department, Faculty of Engineering, Zagazig University, 44519 Zagazig, Egypt
| | - Manuel Sánchez-Polo
- Inorganic Chemistry Department, Faculty of Science, University of Granada, 18071 Granada, Spain
| | - Raúl Ocampo-Pérez
- Center of Research and Postgraduate Studies, Faculty of Chemical Science, Autonomous University of San Luis Potosí, Av. Dr. M. Nava No.6, San Luis Potosí SLP 78210, Mexico
| | - Jesús J López-Peñalver
- Inorganic Chemistry Department, Faculty of Science, University of Granada, 18071 Granada, Spain
| | - Inmaculada Velo-Gala
- Inorganic Chemistry Department, Faculty of Science, University of Granada, 18071 Granada, Spain
| | - Antonio J Mota
- Inorganic Chemistry Department, Faculty of Science, University of Granada, 18071 Granada, Spain
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36
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Yang XJ, Xu XM, Xu XC, Xu J, Wang HL, Semiat R, Han YF. Modeling and kinetics study of Bisphenol A (BPA) degradation over an FeOCl/SiO2 Fenton-like catalyst. Catal Today 2016. [DOI: 10.1016/j.cattod.2016.01.002] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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37
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Fan J, Shi H, Xiao H, Zhao G. Double-Layer 3D Macro-Mesoporous Metal Oxide Modified Boron-Doped Diamond with Enhanced Photoelectrochemical Performance. ACS APPLIED MATERIALS & INTERFACES 2016; 8:28306-28315. [PMID: 27105288 DOI: 10.1021/acsami.6b01929] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In this work, a TiO2/Sb-doped SnO2 electrode was prepared on the boron-doped diamond (BDD) substrate with double-layer three-dimensional macro-mesoporous (DL3DOM-m) structure, using the polystyrene sphere (PS) vertical deposition method. The as-prepared DL3DOM-m TiO2/SnO2/BDD was employed for organic contaminant removal, showing excellent photoelectrocatalytic performance. SEM, XRD and XPS indicated that DL3DOM-m electrode possessed a 3D macroporous layered framework with uniform pore size (about 400 nm), nanosized particles (4.5-5.8 nm), and high electroactive surface area (3-fold more than that of BDD). SA-XRD indicated the backbone of DL3DOM-m electrode had mesoporous structure. It was found that the as-prepared electrode exhibited remarkable electrocatalytic activity, high photocurrent and outstanding absorption capability (91.0 μg cm-2). Furthermore, bisphenol A (BPA) was completely decomposed after 3 h of reaction applying DL3DOM-m electrode as photoanode, and that on BDD was only 58.9%. It indicated that the modified electrode had great potential to be used in practical water treatment with high photoelectrochemical performance.
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Affiliation(s)
- Jiaqi Fan
- Department of Chemistry, Tongji University , Shanghai 200092, China
| | - Huijie Shi
- Department of Chemistry, Tongji University , Shanghai 200092, China
| | - Hanshuang Xiao
- Department of Chemistry, Tongji University , Shanghai 200092, China
| | - Guohua Zhao
- Department of Chemistry, Tongji University , Shanghai 200092, China
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38
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Gargouri OD, Trabelsi SK, Abdelhèdi R. Depollution of syringic acid aqueous solutions by electrochemical oxidation using high oxidation power anodes. RSC Adv 2016. [DOI: 10.1039/c6ra12079b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
High oxidation power anodes (PbO2 or BDD), lead to complete electrochemical removal of syringic acid under particularly experimental conditions.
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Affiliation(s)
- O. Dridi Gargouri
- Laboratoire d'Electrochimie et Environment
- Ecole Nationale d'Ingénieur de Sfax
- Université de Sfax
- 3038 Sfax
- Tunisie
| | - S. Kallel Trabelsi
- Laboratoire d'Electrochimie et Environment
- Ecole Nationale d'Ingénieur de Sfax
- Université de Sfax
- 3038 Sfax
- Tunisie
| | - R. Abdelhèdi
- Laboratoire d'Electrochimie et Environment
- Ecole Nationale d'Ingénieur de Sfax
- Université de Sfax
- 3038 Sfax
- Tunisie
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39
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Yang GCC, Tang PL. Removal of phthalates and pharmaceuticals from municipal wastewater by graphene adsorption process. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2016; 73:2268-74. [PMID: 27148730 DOI: 10.2166/wst.2016.006] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
In this work graphene was used for evaluation of its adsorption behavior and performance in removing phthalate esters and pharmaceuticals in municipal wastewater. Di-n-butyl phthalate (DnBP), di-(2-ethylhexyl) phthalate (DEHP), acetaminophen (ACE), caffeine (CAF), cephalexin (CLX), and sulfamethoxazole (SMX) were emerging contaminants (ECs) with detection frequencies over 92% in a one-year monitoring of the occurrence of ECs in influent samples of a sewage treatment plant in Taiwan. Thus, these ECs were selected as the target contaminants for removal by graphene adsorption process. Experimental results showed that the adsorption isotherm data were fitted well to Langmuir model equation. It was also found that the adsorption process obeyed the pseudo-second-order kinetics. A graphene dosage of 0.1 g/L and adsorption time of 12 h were found to be the optimal operating conditions for the ECs of concern in model solutions in a preliminary study. By using the determined optimal operating conditions for removal of such ECs in actual municipal wastewater, removal efficiencies for various ECs were obtained and given as follows: (1) DnBP, 89%, (2) DEHP, 86%, (3) ACE, 43%, (4) CAF, 84%, (5) CLX, 81%, and (6) SMX, 34%.
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Affiliation(s)
- Gordon C C Yang
- Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan E-mail: ; Center for Emerging Contaminants Research, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
| | - Pei-Ling Tang
- Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan E-mail:
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40
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Yahya MS, El Karbane M, Oturan N, El Kacemi K, Oturan MA. Mineralization of the antibiotic levofloxacin in aqueous medium by electro-Fenton process: kinetics and intermediate products analysis. ENVIRONMENTAL TECHNOLOGY 2015; 37:1276-1287. [PMID: 26508263 DOI: 10.1080/09593330.2015.1111427] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The present study investigates the feasibility of using electro-Fenton (EF) process for the oxidative degradation of antibiotic levofloxacin (LEV). The EF experiments have been performed in an electrochemical cell using a carbon-felt cathode. The effect of applied current in the range 60-500 mA and catalyst concentration in the range 0.05-0.5 mM on the kinetics of oxidative degradation and mineralization efficiency have been investigated. Degradation of LEV by hydroxyl radicals was found to follow pseudo-first-order reaction kinetics. The absolute rate constant for oxidative degradation of LEV by hydroxyl radical has been determined by a competition kinetics method and found to be (2.48 ± 0.18) × 10(9) M(-1) s(-1). An optimum current value of 400 mA and a catalyst (Fe(2+)) concentration of 0.1 mM were observed to be optimal for an effective degradation of LEV under our operating conditions. Mineralization of aqueous solution of LEV was performed by the chemical oxygen demand analysis and an almost mineralization degree (>91%) was reached at the end of 6 h of electrolysis. A number of intermediate products have been identified using high performance liquid chromatography and liquid chrmatography-mass spectrometry analyses. Based on these identified reaction intermediates, a plausible reaction pathway has been suggested for the mineralization process. The formation and evolution of [Formula: see text] and [Formula: see text] ions released to the medium during the process were also discussed.
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Affiliation(s)
- Muna Sh Yahya
- a Laboratoire d'Électrochimie et Chimie Analytique (LECA) , Université Mohammed V- Agdal , Rabat , Morocco
| | - Miloud El Karbane
- b Physicochemical Service, Drugs Quality Control Laboratory, Division of Drugs and Pharmacy , Ministry of Health , Rabat , Morocco
| | - Nihal Oturan
- c Laboratoire Géomatériaux et Environnement (LGE) , Université Paris-Est , Marne-la-Vallée , France
| | - Kacem El Kacemi
- a Laboratoire d'Électrochimie et Chimie Analytique (LECA) , Université Mohammed V- Agdal , Rabat , Morocco
| | - Mehmet A Oturan
- c Laboratoire Géomatériaux et Environnement (LGE) , Université Paris-Est , Marne-la-Vallée , France
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41
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Oturan N, van Hullebusch ED, Zhang H, Mazeas L, Budzinski H, Le Menach K, Oturan MA. Occurrence and Removal of Organic Micropollutants in Landfill Leachates Treated by Electrochemical Advanced Oxidation Processes. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2015; 49:12187-12196. [PMID: 26378656 DOI: 10.1021/acs.est.5b02809] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In recent years, electrochemical advanced oxidation processes have been shown to be an effective alternative for the removal of refractory organic compounds from water. This study is focused on the effective removal of recalcitrant organic matter (micropollutants, humic substances, etc.) present in municipal solid waste landfill leachates. A mixture of eight landfill leachates has been studied by the electro-Fenton process using a Pt or boron-doped diamond (BDD) anode and a carbon felt cathode or by the anodic oxidation process with a BDD anode. These processes exhibit great oxidation ability due to the in situ production of hydroxyl radicals ((•)OH), a highly powerful oxidizing species. Both electrochemical processes were shown to be efficient in the removal of dissolved total organic carbon (TOC) from landfill leachates. Regarding the electro-Fenton process, the replacement of the classical anode Pt by the anode BDD allows better performance in terms of dissolved TOC removal. The occurrence and removal yield of 19 polycyclic aromatic hydrocarbons, 15 volatile organic compounds, 7 alkylphenols, 7 polychlorobiphenyls, 5 organochlorine pesticides, and 2 polybrominated diphenyl ethers in landfill leachate were also investigated. Both electrochemical processes allow one to reach a quasicomplete removal (about 98%) of these organic micropollutants.
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Affiliation(s)
- Nihal Oturan
- Laboratoire Géomatériaux et Environnement, Université Paris-Est, EA 4508, UPEM , 5 Boulevard Descartes, Marne-la-Vallée 77454 Cedex 2, France
| | - Eric D van Hullebusch
- Laboratoire Géomatériaux et Environnement, Université Paris-Est, EA 4508, UPEM , 5 Boulevard Descartes, Marne-la-Vallée 77454 Cedex 2, France
| | - Hui Zhang
- Department of Environmental Engineering, Wuhan University , P.O. Box C319 Luoyu Road 129#, Wuhan 430079, China
| | - Laurent Mazeas
- Hydrosystems and Bioprocesses Research Unit, IRSTEA , 1 Rue Pierre-Gilles de Gennes, CS 10030, Antony F-92761 Cedex, France
| | - Hélène Budzinski
- Environnements et Paléoenvironnements Océaniques et Continentaux, EPOC-UMR 5805 CNRS, Laboratoire de Physico-et Toxico-Chimie de l'environnement (LPTC), Université de Bordeaux, Bâtiment A12, 351 Cours de la Libération, 33405 Talence, France
| | - Karyn Le Menach
- Environnements et Paléoenvironnements Océaniques et Continentaux, EPOC-UMR 5805 CNRS, Laboratoire de Physico-et Toxico-Chimie de l'environnement (LPTC), Université de Bordeaux, Bâtiment A12, 351 Cours de la Libération, 33405 Talence, France
| | - Mehmet A Oturan
- Laboratoire Géomatériaux et Environnement, Université Paris-Est, EA 4508, UPEM , 5 Boulevard Descartes, Marne-la-Vallée 77454 Cedex 2, France
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42
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Hou CH, Huang SC, Chou PH, Den W. Removal of bisphenol A from aqueous solutions by electrochemical polymerization on a carbon aerogel electrode. J Taiwan Inst Chem Eng 2015. [DOI: 10.1016/j.jtice.2015.01.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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43
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Taboada-Puig R, Eibes G, Lloret L, Lú-Chau TA, Feijoo G, Moreira MT, Lema JM. Fostering the action of versatile peroxidase as a highly efficient biocatalyst for the removal of endocrine disrupting compounds. N Biotechnol 2015; 33:187-95. [PMID: 26028522 DOI: 10.1016/j.nbt.2015.05.003] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Revised: 04/03/2015] [Accepted: 05/20/2015] [Indexed: 11/28/2022]
Abstract
Response surface methodology (RSM) was used to optimize the removal of five endocrine disrupting compounds (EDCs) by the enzyme versatile peroxidase (VP): bisphenol A (BPA), triclosan (TCS), estrone (E1), 17β-estradiol (E2) and 17α-ethinylestradiol (EE2). The optimal variables of enzyme activity (90-100 U L(-1)), sodium malonate (29-43 mM) and MnSO4 (0.8-1 mM) led to very high removal rates of the five pollutants (2.5-5.0 mg L(-1) min(-1)). The structural elucidation of transformation products arising from the enzymatic catalysis of the EDCs was investigated by Gas Chromatography coupled to Mass Spectrometry (GC-MS) and Liquid Chromatography Electrospray Time-of-Flight Mass Spectrometry (LC-ESI-TOF-MS). The presence of dimers and trimers, indicative of oxidative coupling, was demonstrated.
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Affiliation(s)
- R Taboada-Puig
- Department of Chemical Engineering, Institute of Technology, University of Santiago de Compostela, E-15782 Santiago de Compostela, Spain
| | - G Eibes
- Department of Chemical Engineering, Institute of Technology, University of Santiago de Compostela, E-15782 Santiago de Compostela, Spain.
| | - L Lloret
- Department of Chemical Engineering, Institute of Technology, University of Santiago de Compostela, E-15782 Santiago de Compostela, Spain
| | - T A Lú-Chau
- Department of Chemical Engineering, Institute of Technology, University of Santiago de Compostela, E-15782 Santiago de Compostela, Spain
| | - G Feijoo
- Department of Chemical Engineering, Institute of Technology, University of Santiago de Compostela, E-15782 Santiago de Compostela, Spain
| | - M T Moreira
- Department of Chemical Engineering, Institute of Technology, University of Santiago de Compostela, E-15782 Santiago de Compostela, Spain
| | - J M Lema
- Department of Chemical Engineering, Institute of Technology, University of Santiago de Compostela, E-15782 Santiago de Compostela, Spain
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44
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Gao G, Zhang Q, Hao Z, Vecitis CD. Carbon nanotube membrane stack for flow-through sequential regenerative electro-Fenton. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2015; 49:2375-83. [PMID: 25602741 DOI: 10.1021/es505679e] [Citation(s) in RCA: 129] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Electro-Fenton is a promising advanced oxidation process for water treatment consisting a series redox reactions. Here, we design and examine an electrochemical filter for sequential electro-Fenton reactions to optimize the treatment process. The carbon nanotube (CNT) membrane stack (thickness ∼ 200 μm) used here consisted of 1) a CNT network cathode for O2 reduction to H2O2, 2) a CNT-COOFe(2+) cathode to chemical reduction H2O2 to (•)OH and HO(-) and to regenerate Fe(2+) in situ, 3) a porous PVDF or PTFE insulating separator, and 4) a CNT filter anode for remaining intermediate oxidation intermediates. The sequential electro-Fenton was compared to individual electrochemical and Fenton process using oxalate, a persistent organic, as a target molecule. Synergism is observed during the sequential electro-Fenton process. For example, when [DO]in = 38 ± 1 mg L(-1), J = 1.6 mL min(-1), neutral pH, and Ecell = 2.89 V, the sequential electro-Fenton oxidation rate was 206.8 ± 6.3 mgC m(-2) h(-1), which is 4-fold greater than the sum of the individual electrochemistry (16.4 ± 3.2 mgC m(-2) h(-1)) and Fenton (33.3 ± 1.3 mgC m(-2) h(-1)) reaction fluxes, and the energy consumption was 45.8 kWh kgTOC(-1). The sequential electro-Fenton was also challenged with the refractory trifluoroacetic acid (TFA) and trichloroacetic acid (TCA), and they can be transferred at a removal rate of 11.3 ± 1.2 and 21.8 ± 1.9 mmol m(-2) h(-1), respectively, with different transformation mechanisms.
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Affiliation(s)
- Guandao Gao
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University , Tianjin 300071, China
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45
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Nidheesh PV. Heterogeneous Fenton catalysts for the abatement of organic pollutants from aqueous solution: a review. RSC Adv 2015. [DOI: 10.1039/c5ra02023a] [Citation(s) in RCA: 372] [Impact Index Per Article: 41.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Fenton processes have gained much attention in the field of wastewater treatment during recent years.
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Affiliation(s)
- P. V. Nidheesh
- Department of Civil Engineering
- National Institute of Technology
- Calicut
- India
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46
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Zhang AY, Long LL, Liu C, Li WW, Yu HQ. Electrochemical degradation of refractory pollutants using TiO2 single crystals exposed by high-energy {001} facets. WATER RESEARCH 2014; 66:273-282. [PMID: 25222331 DOI: 10.1016/j.watres.2014.08.030] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Revised: 08/05/2014] [Accepted: 08/21/2014] [Indexed: 06/03/2023]
Abstract
Anodic material plays a vital role in electrochemical water treatment. Titanium dioxide (TiO2) has been widely recognized as an excellent semiconductor photocatalyst, rather than an efficient electrocatalyst, due to its relatively low electric conductivity and poor electrochemical activity. In this work, it is found that TiO2 can actually become a superior electrocatalyst when its crystal shape and exposed facet are finely tuned. The shape-engineered TiO2 single crystals with {001} facets exhibit an excellent electro-catalytic activity and stability for degrading typical organic pollutants such as rhodamine B and bisphenol A, and treating complex landfill leachate. Its electro-catalytic superiority is mainly attributed to the single-crystalline structure and exposed polar {001} facet. Our findings could provide new possibility of utilizing TiO2 for efficient electrochemical water treatment because of its high activity, great stability, low cost and no toxicity.
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Affiliation(s)
- Ai-Yong Zhang
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Chemistry, University of Science and Technology of China, Hefei 230026, China; Department of Municipal Engineering, Hefei University of Technology, Hefei 230009, China
| | - Lu-Lu Long
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Chang Liu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Wen-Wei Li
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Han-Qing Yu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Chemistry, University of Science and Technology of China, Hefei 230026, China.
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Preparation of POSS-poly(ɛ-caprolactone)-β-cyclodextrin/Fe3O4 hybrid magnetic micelles for removal of bisphenol A from water. Carbohydr Polym 2014; 113:353-61. [DOI: 10.1016/j.carbpol.2014.07.035] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Revised: 06/27/2014] [Accepted: 07/15/2014] [Indexed: 01/12/2023]
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48
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Bañuelos JA, El-Ghenymy A, Rodríguez F, Manríquez J, Bustos E, Rodríguez A, Brillas E, Godínez LA. Study of an Air Diffusion Activated Carbon Packed Electrode for an Electro-Fenton Wastewater Treatment. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.05.078] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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49
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Yang GCC, Yen CH, Wang CL. Monitoring and removal of residual phthalate esters and pharmaceuticals in the drinking water of Kaohsiung City, Taiwan. JOURNAL OF HAZARDOUS MATERIALS 2014; 277:53-61. [PMID: 24703109 DOI: 10.1016/j.jhazmat.2014.03.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2013] [Revised: 03/05/2014] [Accepted: 03/06/2014] [Indexed: 05/05/2023]
Abstract
This study monitored the occurrence and removal efficiencies of 8 phthalate esters (PAEs) and 13 pharmaceuticals present in the drinking water of Kaohsiung City, Taiwan. The simultaneous electrocoagulation and electrofiltration (EC/EF) process was used to remove the contaminants. To this end, a monitoring program was conducted and a novel laboratory-prepared tubular carbon nanofiber/carbon/alumina composite membrane (TCCACM) was incorporated into the EC/EF treatment module (collectively designated as "TCCACM-EC/EF treatment module") to remove the abovementioned compounds from water samples. The monitoring results showed that the concentrations of PAEs were lower in water samples from drinking fountains as compared with tap water samples. No significant differences were found between the concentrations of pharmaceuticals in the two types of water samples. Under optimal operating conditions, the TCCACM-EC/EF treatment module yielded the lowest residual concentrations, ranging from not detected (ND) to 52ng/L for PAEs and pharmaceuticals of concern in the tap water samples. Moreover, the performance of the TCCACM-EC/EF treatment module is comparable with a series of treatment units employed for the drinking fountain water treatment system. The relevant removal mechanisms involved in the TCCACM-EC/EF treatment module were also discussed in this work.
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Affiliation(s)
- Gordon C C Yang
- Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan; Center for Emerging Contaminants Research, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
| | - Chia-Heng Yen
- Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan.
| | - Chih-Lung Wang
- Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
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50
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Park Y, Sun Z, Ayoko GA, Frost RL. Bisphenol A sorption by organo-montmorillonite: implications for the removal of organic contaminants from water. CHEMOSPHERE 2014; 107:249-256. [PMID: 24412097 DOI: 10.1016/j.chemosphere.2013.12.050] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Revised: 12/09/2013] [Accepted: 12/18/2013] [Indexed: 05/15/2023]
Abstract
Remediation of bisphenol A (BPA) from aqueous solutions by adsorption using organoclays synthesized from montmorillonite (MMT) with different types of organic surfactant molecules was demonstrated. High adsorption capacities of the organoclays for the uptake of BPA were observed and these demonstrated their potential application as strong adsorbents for noxious organic water contaminants. The adsorption of BPA was significantly influenced by pH, with increased adsorption of BPA in acidic pH range. However, the organoclays intercalated with highly loaded surfactants and/or large surfactant molecules were less influenced by the pH of the environment and this was thought to be due to the shielding the negative charge from surfactant molecules and the development of more positive charge on the clay surface, which leads to the attraction of anionic BPA even at alkaline pH. The hydrophobic phase created by loaded surfactant molecules contributed to a partitioning phase, interacting with BPA molecules strongly through hydrophobic interaction. Pseudo-second order kinetic model and Langmuir isotherm provided the best fit for the adsorption of BPA onto the organoclays. In addition, the adsorption process was spontaneous and exothermic with lower temperature facilitating the adsorption of BPA onto the organoclays. The described process provides a potential pathway for the removal of BPA from contaminated waters.
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Affiliation(s)
- Yuri Park
- School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology, GPO 2434, Brisbane, Queensland 4001, Australia
| | - Zhiming Sun
- School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology, GPO 2434, Brisbane, Queensland 4001, Australia; School of Chemical and Environmental Engineering, China University of Mining and Technology, Beijing 100083, PR China
| | - Godwin A Ayoko
- School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology, GPO 2434, Brisbane, Queensland 4001, Australia.
| | - Ray L Frost
- School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology, GPO 2434, Brisbane, Queensland 4001, Australia
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