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Xiao Y, Tian Y, Xu W, Zhu J. Photodegradation of Microplastics through Nanomaterials: Insights into Photocatalysts Modification and Detailed Mechanisms. MATERIALS (BASEL, SWITZERLAND) 2024; 17:2755. [PMID: 38894019 PMCID: PMC11174110 DOI: 10.3390/ma17112755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 05/23/2024] [Accepted: 05/24/2024] [Indexed: 06/21/2024]
Abstract
Microplastics (MPs) pose a profound environmental challenge, impacting ecosystems and human health through mechanisms such as bioaccumulation and ecosystem contamination. While traditional water treatment methods can partially remove microplastics, their limitations highlight the need for innovative green approaches like photodegradation to ensure more effective and sustainable removal. This review explores the potential of nanomaterial-enhanced photocatalysts in addressing this issue. Utilizing their unique properties like large surface area and tunable bandgap, nanomaterials significantly improve degradation efficiency. Different strategies for photocatalyst modification to improve photocatalytic performance are thoroughly summarized, with a particular emphasis on element doping and heterojunction construction. Furthermore, this review thoroughly summarizes the possible fundamental mechanisms driving the photodegradation of microplastics facilitated by nanomaterials, with a focus on processes like free radical formation and singlet oxygen oxidation. This review not only synthesizes critical findings from existing studies but also identifies gaps in the current research landscape, suggesting that further development of these photocatalytic techniques could lead to substantial advancements in environmental remediation practices. By delineating these novel approaches and their mechanisms, this work underscores the significant environmental implications and contributes to the ongoing development of sustainable solutions to mitigate microplastic pollution.
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Affiliation(s)
- Yiting Xiao
- Department of Biological Engineering, University of Arkansas, Fayetteville, AR 72701, USA
| | - Yang Tian
- Program of Material Science and Engineering, University of Arkansas, Fayetteville, AR 72701, USA;
| | - Wenbo Xu
- Department of Biomedical Engineering, University of Arkansas, Fayetteville, AR 72701, USA;
| | - Jun Zhu
- Department of Biological Engineering, University of Arkansas, Fayetteville, AR 72701, USA
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García-Muñoz P, Ivanez J, de la Peña O’Shea VA, Keller N, Fresno F. Solar hydrogen production from ethanol-water vapours over metal/TiO2 photocatalysts supported on β-SiC alveolar foams. Catal Today 2022. [DOI: 10.1016/j.cattod.2022.12.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Kajitvichyanukul P, Nguyen VH, Boonupara T, Phan Thi LA, Watcharenwong A, Sumitsawan S, Udomkun P. Challenges and effectiveness of nanotechnology-based photocatalysis for pesticides-contaminated water: A review. ENVIRONMENTAL RESEARCH 2022; 212:113336. [PMID: 35580668 DOI: 10.1016/j.envres.2022.113336] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 03/30/2022] [Accepted: 04/15/2022] [Indexed: 06/15/2023]
Abstract
Pesticides have been frequently used in agricultural fields. Due to the expeditious utilization of pesticides, their excessive usage has negative impacts on the natural environment and human health. This review discusses the successful implications of nanotechnology-based photocatalysis for the removal of environmental pesticide contaminants. Notably, various nanomaterials, including TiO2, ZnO, Fe2O3, nanoscale zero-valent iron, nanocomposite-based materials, have been proposed and have played a progressively essential role in wastewater treatment. In addition, a detailed review of the crucial reaction condition factors, including water matrix, pH, light source, temperature, flow rate (retention time), initial concentration of pesticides, a dosage of photocatalyst, and radical scavengers, is also highlighted. Additionally, the degradation pathway of pesticide mineralization is also elucidated. Finally, the challenges of technologies and the future of nanotechnology-based photocatalysis toward the photo-degradation of pesticides are thoroughly discussed. It is expected that those innovative extraordinary photocatalysts will significantly enhance the performance of pesticides degradation in the coming years.
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Affiliation(s)
- Puangrat Kajitvichyanukul
- Sustainable Engineering Research Center for Pollution and Environmental Management, Faculty of Engineering, Chiang Mai University, Chiang Mai, Thailand; Department of Environmental Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai, Thailand.
| | - Van-Huy Nguyen
- Faculty of Allied Health Sciences, Chettinad Academy of Research and Education (CARE), Kelambakkam, Chennai, Tamilnadu, India
| | - Thirasant Boonupara
- Sustainable Engineering Research Center for Pollution and Environmental Management, Faculty of Engineering, Chiang Mai University, Chiang Mai, Thailand; Department of Environmental Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai, Thailand
| | - Lan-Anh Phan Thi
- VNU Key Laboratory of Analytical Technology for Environmental Quality and Food Safety Control (KLATEFOS), VNU University of Science, Vietnam National University, Hanoi, Viet Nam; Center for Environmental Technology and Sustainable Development (CETASD), VNU University of Science, Vietnam National University, Hanoi, Viet Nam
| | - Apichon Watcharenwong
- School of Environmental Engineering, Institute of Engineering, Suranaree University of Technology, Nakhon Ratchasima, Thailand; Center of Excellence in Advanced Functional Materials, Suranaree University of Technology, Nakhon Ratchasima, Thailand
| | - Sulak Sumitsawan
- Sustainable Engineering Research Center for Pollution and Environmental Management, Faculty of Engineering, Chiang Mai University, Chiang Mai, Thailand; Department of Environmental Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai, Thailand
| | - Patchimaporn Udomkun
- Sustainable Engineering Research Center for Pollution and Environmental Management, Faculty of Engineering, Chiang Mai University, Chiang Mai, Thailand; Department of Environmental Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai, Thailand
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Kulkarni SR, Velisoju VK, Tavares F, Dikhtiarenko A, Gascon J, Castaño P. Silicon carbide in catalysis: from inert bed filler to catalytic support and multifunctional material. CATALYSIS REVIEWS 2022. [DOI: 10.1080/01614940.2022.2025670] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Shekhar R Kulkarni
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900 Saudi Arabia
| | - Vijay K. Velisoju
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900 Saudi Arabia
| | - Fernanda Tavares
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900 Saudi Arabia
| | - Alla Dikhtiarenko
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900 Saudi Arabia
| | - Jorge Gascon
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900 Saudi Arabia
| | - Pedro Castaño
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900 Saudi Arabia
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Tuci G, Liu Y, Rossin A, Guo X, Pham C, Giambastiani G, Pham-Huu C. Porous Silicon Carbide (SiC): A Chance for Improving Catalysts or Just Another Active-Phase Carrier? Chem Rev 2021; 121:10559-10665. [PMID: 34255488 DOI: 10.1021/acs.chemrev.1c00269] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
There is an obvious gap between efforts dedicated to the control of chemicophysical and morphological properties of catalyst active phases and the attention paid to the search of new materials to be employed as functional carriers in the upgrading of heterogeneous catalysts. Economic constraints and common habits in preparing heterogeneous catalysts have narrowed the selection of active-phase carriers to a handful of materials: oxide-based ceramics (e.g. Al2O3, SiO2, TiO2, and aluminosilicates-zeolites) and carbon. However, these carriers occasionally face chemicophysical constraints that limit their application in catalysis. For instance, oxides are easily corroded by acids or bases, and carbon is not resistant to oxidation. Therefore, these carriers cannot be recycled. Moreover, the poor thermal conductivity of metal oxide carriers often translates into permanent alterations of the catalyst active sites (i.e. metal active-phase sintering) that compromise the catalyst performance and its lifetime on run. Therefore, the development of new carriers for the design and synthesis of advanced functional catalytic materials and processes is an urgent priority for the heterogeneous catalysis of the future. Silicon carbide (SiC) is a non-oxide semiconductor with unique chemicophysical properties that make it highly attractive in several branches of catalysis. Accordingly, the past decade has witnessed a large increase of reports dedicated to the design of SiC-based catalysts, also in light of a steadily growing portfolio of porous SiC materials covering a wide range of well-controlled pore structure and surface properties. This review article provides a comprehensive overview on the synthesis and use of macro/mesoporous SiC materials in catalysis, stressing their unique features for the design of efficient, cost-effective, and easy to scale-up heterogeneous catalysts, outlining their success where other and more classical oxide-based supports failed. All applications of SiC in catalysis will be reviewed from the perspective of a given chemical reaction, highlighting all improvements rising from the use of SiC in terms of activity, selectivity, and process sustainability. We feel that the experienced viewpoint of SiC-based catalyst producers and end users (these authors) and their critical presentation of a comprehensive overview on the applications of SiC in catalysis will help the readership to create its own opinion on the central role of SiC for the future of heterogeneous catalysis.
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Affiliation(s)
- Giulia Tuci
- Institute of Chemistry of OrganoMetallic Compounds, ICCOM-CNR and Consorzio INSTM, Via Madonna del Piano, 10, 50019 Sesto F.no, Florence, Italy
| | - Yuefeng Liu
- Dalian National Laboratory for Clean Energy (DNL), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, 116023 Dalian, China
| | - Andrea Rossin
- Institute of Chemistry of OrganoMetallic Compounds, ICCOM-CNR and Consorzio INSTM, Via Madonna del Piano, 10, 50019 Sesto F.no, Florence, Italy
| | - Xiangyun Guo
- School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Charlotte Pham
- SICAT SARL, 20 place des Halles, 67000 Strasbourg, France
| | - Giuliano Giambastiani
- Institute of Chemistry of OrganoMetallic Compounds, ICCOM-CNR and Consorzio INSTM, Via Madonna del Piano, 10, 50019 Sesto F.no, Florence, Italy.,Institute of Chemistry and Processes for Energy, Environment and Health (ICPEES), ECPM, UMR 7515 of the CNRS-University of Strasbourg, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France
| | - Cuong Pham-Huu
- Institute of Chemistry and Processes for Energy, Environment and Health (ICPEES), ECPM, UMR 7515 of the CNRS-University of Strasbourg, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France
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Lam SM, Jaffari ZH, Sin JC, Zeng H, Lin H, Li H, Mohamed AR. Insight into the influence of noble metal decorated on BiFeO3 for 2,4-dichlorophenol and real herbicide wastewater treatment under visible light. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126138] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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García-Muñoz P, Fresno F, Lefevre C, Robert D, Keller N. Ti-Modified LaFeO 3/β-SiC Alveolar Foams as Immobilized Dual Catalysts with Combined Photo-Fenton and Photocatalytic Activity. ACS APPLIED MATERIALS & INTERFACES 2020; 12:57025-57037. [PMID: 33296165 DOI: 10.1021/acsami.0c16647] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Ti-modified LaFeO3/β-SiC alveolar foams were used as immobilized, highly robust dual catalysts with combined photocatalytic wet peroxide oxidation and photocatalytic activity under UV-A light. They were prepared by incipient wetness impregnation of a β-SiC foam support, by implementing a sol-gel Pechini synthesis at the foam surface in the presence of dried amorphous sol-gel titania as a titanium source. The physicochemical and catalytic features suggest the stabilization at the foam surface of a substituted La1-xTixFeO3 catalyst analogous to its powdery counterpart. Taking 4-chlorophenol removal in water as a model reaction, its dual nature enables both high reaction rates and full total organic carbon (TOC) conversion because of a synergy effect, while its macroscopic structure overcomes the drawback of working with powdery catalysts. Further, it yields photonic efficiencies for degradation and mineralization of ca. 9.4 and 38%, respectively, that strongly outperform those obtained with a reference TiO2 P25/β-SiC foam photocatalyst. The enhancement of the catalyst robustness upon Ti modification prevents any Fe leaching to the solution, and therefore, the optimized macroscopic foam catalyst with 10 wt % catalyst loading operates through pure heterogeneous surface reactions, without any activity loss during reusability test cycles.
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Affiliation(s)
- Patricia García-Muñoz
- Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé (ICPEES), CNRS/University of Strasbourg, 25 rue Becquerel, 67087 Strasbourg, France
| | - Fernando Fresno
- Photoactivated Processes Unit, IMDEA Energy, Móstoles, 28935 Madrid, Spain
| | - Christophe Lefevre
- Institut de Physique et de Chimie des Matériaux de Strasbourg (IPCMS), CNRS/University de Strasbourg, 23 rue du Loess, 67034 Strasbourg, France
| | - Didier Robert
- Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé (ICPEES), CNRS/University of Strasbourg, 25 rue Becquerel, 67087 Strasbourg, France
| | - Nicolas Keller
- Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé (ICPEES), CNRS/University of Strasbourg, 25 rue Becquerel, 67087 Strasbourg, France
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Jouali A, Salhi A, Aguedach A, Lhadi EK, El Krati M, Tahiri S. Photo-catalytic degradation of polyphenolic tannins in continuous-flow reactor using titanium dioxide immobilized on a cellulosic material. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2020; 82:1454-1466. [PMID: 33079723 DOI: 10.2166/wst.2020.420] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Tannins are recalcitrant polyphenolic molecules that resist microbial attack. Their main environmental damage is due to their low biodegradability. This work aims to investigate the photo-catalytic degradation of two commercial tannin extracts, chestnut (hydrolysable tannin) and mimosa (condensed tannin). The experiments were carried out under UV-light irradiation in a continuous-flow reactor using titanium dioxide (TiO2) immobilized on cellulosic fibers. It was highlighted that photo-catalytic degradation is unfavourable in acidic medium and when the pH is too high (pH above 12); it reaches its maximum efficiency at pH 7.5 (99 and 97% for chestnut and mimosa, respectively). Nearly complete degradation of tannins requires an irradiation period of 6 h. The process efficiency is inversely affected by the concentration of tannins essentially above 75 mg/L for chestnut and 60 mg/L for mimosa. Above 240 mL/min, any increase in feed flow negatively affects the performance of the process. Furthermore, a significant decrease of treatment efficiency was seen when increasing the concentration of ethanol and salts in the medium. Obtained results suggest that UV-light irradiation in a continuous-flow photo-reactor using immobilized TiO2 may be considered as an adequate process for the treatment of water containing recalcitrant tannin molecules.
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Affiliation(s)
- Abdelhadi Jouali
- Laboratory of Water and Environment (Research team: Analytical Chemistry and Environmental Process Engineering), Department of Chemistry, Faculty of Sciences, University Chouaïb Doukkali, P.O. Box 20, El Jadida 24000, Morocco E-mail:
| | - Anas Salhi
- Laboratory of Water and Environment (Research team: Analytical Chemistry and Environmental Process Engineering), Department of Chemistry, Faculty of Sciences, University Chouaïb Doukkali, P.O. Box 20, El Jadida 24000, Morocco E-mail:
| | - Abdelkahhar Aguedach
- Laboratory of Water and Environment (Research team: Analytical Chemistry and Environmental Process Engineering), Department of Chemistry, Faculty of Sciences, University Chouaïb Doukkali, P.O. Box 20, El Jadida 24000, Morocco E-mail:
| | - El Kbir Lhadi
- Laboratory of Water and Environment (Research team: Analytical Chemistry and Environmental Process Engineering), Department of Chemistry, Faculty of Sciences, University Chouaïb Doukkali, P.O. Box 20, El Jadida 24000, Morocco E-mail:
| | - Mohammed El Krati
- Laboratory of Water and Environment (Research team: Analytical Chemistry and Environmental Process Engineering), Department of Chemistry, Faculty of Sciences, University Chouaïb Doukkali, P.O. Box 20, El Jadida 24000, Morocco E-mail:
| | - Soufiane Tahiri
- Laboratory of Water and Environment (Research team: Analytical Chemistry and Environmental Process Engineering), Department of Chemistry, Faculty of Sciences, University Chouaïb Doukkali, P.O. Box 20, El Jadida 24000, Morocco E-mail:
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Barbosa AA, Aquino RVS, Silva MG, Nascimento Júnior WJ, Duarte MMMB, Dantas RF, Rocha ORS. New aluminum mesh from recyclable material for immobilization of TiO
2
in heterogeneous photocatalysis. CAN J CHEM ENG 2020. [DOI: 10.1002/cjce.23706] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Ada A. Barbosa
- Department of Chemical Engineering Universidade Federal de Pernambuco (UFPE) Recife Brazil
| | - Ramon V. S. Aquino
- Department of Chemical Engineering Universidade Federal de Pernambuco (UFPE) Recife Brazil
| | - Marina G. Silva
- Department of Chemical Engineering Universidade Federal de Pernambuco (UFPE) Recife Brazil
| | | | - Marta M. M. B. Duarte
- Department of Chemical Engineering Universidade Federal de Pernambuco (UFPE) Recife Brazil
| | - Renato F. Dantas
- School of Technology University of Campinas (UNICAMP) Limeira Brazil
| | - Otidene R. S. Rocha
- Department of Chemical Engineering Universidade Federal de Pernambuco (UFPE) Recife Brazil
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Rico-Santacruz M, García-Muñoz P, Marchal C, Batail N, Pham C, Robert D, Keller N. Coating-free TiO2@β-SiC alveolar foams as a ready-to-use composite photocatalyst with tunable adsorption properties for water treatment. RSC Adv 2020; 10:3817-3825. [PMID: 35492643 PMCID: PMC9048602 DOI: 10.1039/c9ra09553e] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Accepted: 01/03/2020] [Indexed: 01/14/2023] Open
Abstract
Coating-free TiO2@β-SiC photocatalytic composite foams gathered within a ready-to-use shell/core alveolar medium the photocatalytically active TiO2 phase and the β-SiC foam structure were prepared via a multi-step shape memory synthesis (SMS) replica method. They were fabricated following a sequential two-step carburization approach, in which an external TiC skin was synthesized at the surface of a β-SiC skeleton foam obtained from a pre-shaped polyurethane foam during a first carburization step. The adsorption behaviour of the shell/core TiO2@β-SiC composite foams towards the Diuron pollutant in water was tuned by submitting the carbide foams to a final calcination treatment within the 550–700 °C temperature range. The controlled calcination step allowed (i) the selective oxidation of the TiC shell into a TiO2 crystallite shell owing to the β-SiC resistance to oxidation and (ii) the amount of residual unreacted carbon in the foams to be tuned. The lower the calcination temperature, the more pronounced the adsorption profiles of the composites and the higher the Diuron amount removed by adsorption on the residual unreacted carbon. The ready-to-use TiO2@β-SiC composite foams were active in the degradation of the Diuron pesticide, without any further post-synthesis immobilization or synthesis process at the foam surface. They displayed good reusability with test cycles and benefitted from an enhanced stability in terms of the titania release to water. Coating-free TiO2@β-SiC photocatalytic composite foams gathering within a ready-to-use shell/core alveolar medium the TiO2 photocatalyst and the β-SiC foam structure were prepared via a multi-step shape memory synthesis (SMS) replica method.![]()
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Affiliation(s)
- Marisa Rico-Santacruz
- Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé (ICPEES)
- CNRS
- University of Strasbourg
- Strasbourg
- France
| | - Patricia García-Muñoz
- Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé (ICPEES)
- CNRS
- University of Strasbourg
- Strasbourg
- France
| | - Clément Marchal
- Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé (ICPEES)
- CNRS
- University of Strasbourg
- Strasbourg
- France
| | | | | | - Didier Robert
- Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé (ICPEES)
- CNRS
- University of Strasbourg
- Strasbourg
- France
| | - Nicolas Keller
- Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé (ICPEES)
- CNRS
- University of Strasbourg
- Strasbourg
- France
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TiO 2-Doped Electrospun Nanofibrous Membrane for Photocatalytic Water Treatment. Polymers (Basel) 2019; 11:polym11050747. [PMID: 31027371 PMCID: PMC6572155 DOI: 10.3390/polym11050747] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 04/17/2019] [Accepted: 04/18/2019] [Indexed: 11/17/2022] Open
Abstract
This work has been focused on the one-step fabrication by electrospinning of polyamide 6 (PA6) nanofibre membranes modified with titanium dioxide nanoparticles (TiO2), where these TiO2 nanoparticles aggregates could induce a photocatalytic activity. The main potential application of these membranes could be the purification of contaminated water. Thus, it is important to analyse the contaminant degradation capability since in these membranes this is based on their photocatalytic activity. In this work, the effect of the photocatalysis has been studied both on the degradation of an organic model contaminant and on the removal of Escherichia coli and other coliform bacteria. As a result, it was observed that these membranes present excellent photocatalytic activity when they are irradiated under UV light, allowing a 70% reduction of an organic model pollutant after 240 min. In addition, these membranes successfully removed Escherichia coli and other coliform bacteria in artificially inoculated water after 24 h of contact with them. Moreover, the stand-alone structure of the membranes allowed for the reusing of the immobilized catalyst. The experimental evidence indicated that developed nanofibre membranes are a fast and efficient solution for polluted water decontamination based on photocatalysis. Their use could contribute to guarantee a fresh water level and quality, mitigating the water scarcity problem worldwide.
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M’Bra IC, Atheba GP, Robert D, Drogui P, Trokourey A. Photocatalytic Degradation of Paraquat Herbicide Using a Fixed Bed Reactor Containing TiO<sub>2</sub> Nanoparticles Coated onto <i>β-SiC</i> Alveolar Foams. ACTA ACUST UNITED AC 2019. [DOI: 10.4236/ajac.2019.105015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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