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Araj SK, Szeleszczuk Ł. A Review on Cyclodextrins/Estrogens Inclusion Complexes. Int J Mol Sci 2023; 24:ijms24108780. [PMID: 37240133 DOI: 10.3390/ijms24108780] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 05/11/2023] [Accepted: 05/13/2023] [Indexed: 05/28/2023] Open
Abstract
This review focuses on the methods of preparation and biological, physiochemical, and theoretical analysis of the inclusion complexes formed between estrogens and cyclodextrins (CDs). Because estrogens have a low polarity, they can interact with some cyclodextrins' hydrophobic cavities to create inclusion complexes, if their geometric properties are compatible. For the last forty years, estrogen-CD complexes have been widely applied in several fields for various objectives. For example, CDs have been used as estrogen solubilizers and absorption boosters in pharmaceutical formulations, as well as in chromatographic and electrophoretic procedures for their separation and quantification. Other applications include the removal of the endocrine disruptors from environmental materials, the preparation of the samples for mass spectrometric analysis, or solid-phase extractions based on complex formation with CDs. The aim of this review is to gather the most important outcomes from the works related to this topic, presenting the results of synthesis, in silico, in vitro, and in vivo analysis.
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Affiliation(s)
- Szymon Kamil Araj
- Department of Organic and Physical Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1 Str., 02-093 Warsaw, Poland
| | - Łukasz Szeleszczuk
- Department of Organic and Physical Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1 Str., 02-093 Warsaw, Poland
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2
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Ozelcaglayan ED, Parker WJ. β-Cyclodextrin functionalized adsorbents for removal of organic micropollutants from water. CHEMOSPHERE 2023; 320:137964. [PMID: 36736473 DOI: 10.1016/j.chemosphere.2023.137964] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 12/16/2022] [Accepted: 01/23/2023] [Indexed: 06/18/2023]
Abstract
The presence of organic micropollutants in water is an ongoing concern due to the potential risks to living organisms. β-Cyclodextrin-based adsorbents have been developed to remove organic micropollutants from water as they are deemed to be efficient, selective and reusable. This literature review establishes the current state of the knowledge on the application of β-Cyclodextrin adsorbents for the removal of organic micropollutants from water and determines knowledge gaps and recommendations for future studies. An inventory of organic micropollutants that have been studied was developed and it revealed that bisphenol-A has been the most commonly studied. Adsorbent configurations were reviewed and modifications to the adsorbent structures that have provided enhanced adsorption properties were identified. The size and shape of the organic micropollutants was found to affect the adsorption behavior. The surface charge of β-Cyclodextrin adsorbents influence adsorption when repulsive forces are present and the extent of repulsion can depend on the pH of the solution. Common competitors such as natural organic matter and inorganic ions do not significantly impact the adsorption of organic micropollutants however relatively small fulvic acids may compete for the β-Cyclodextrin cavity depending on the adsorbent type. Desorption of organic micropollutants from these adsorbents has been accomplished with alcohols and most adsorbents have been recovered and reused in adsorption/desorption cycles. The need for enhanced recovery processes that maintain water quality and adsorbent integrity was identified. The use of quantitative structure-activity relationships and molecular computational tools could potentially guide future environmental applications of β-Cyclodextrin adsorbents.
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Affiliation(s)
- Ezgi Demircan Ozelcaglayan
- Department of Civil and Environmental Engineering, University of Waterloo, 200 University Avenue West, Waterloo, N2L 3G1, Ontario, Canada.
| | - Wayne J Parker
- Department of Civil and Environmental Engineering, University of Waterloo, 200 University Avenue West, Waterloo, N2L 3G1, Ontario, Canada
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3
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Mottola S, Mancuso A, Sacco O, De Marco I, Vaiano V. Production of hybrid TiO2/β-CD photocatalysts by supercritical antisolvent micronization for UV light-driven degradation of azo dyes. J Supercrit Fluids 2022. [DOI: 10.1016/j.supflu.2022.105695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Cevallos-Mendoza J, Amorim CG, Rodríguez-Díaz JM, Montenegro MDCBSM. Removal of Contaminants from Water by Membrane Filtration: A Review. MEMBRANES 2022; 12:membranes12060570. [PMID: 35736277 PMCID: PMC9229562 DOI: 10.3390/membranes12060570] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 05/27/2022] [Accepted: 05/27/2022] [Indexed: 12/07/2022]
Abstract
Drinking water sources are increasingly subject to various types of contamination due to anthropogenic factors and require proper treatment to remove disease-causing agents. Public drinking water systems use different treatment methods to provide safe and quality drinking water to populations. However, they are ineffective in removing contaminants that are considered a danger to the environment and therefore to humans. Several alternative treatment processes have been proposed, such as membrane filtration, as final purification methods. This paper aims to summarize the type of pollutant compounds, filtration processes, and membranes that have been most studied in this area with particular emphasis on how the modification of membranes, either the manufacturing process or the incorporation of nanomaterials, influences their performance.
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Affiliation(s)
- Jaime Cevallos-Mendoza
- LAQV-REQUIMTE/Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, R. Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal;
- Instituto de Admisión y Nivelación, Universidad Técnica de Manabí, Portoviejo 130105, Ecuador
- Laboratorio de Análisis Químicos y Biotecnológicos, Instituto de Investigación, Universidad Técnica de Manabí, Portoviejo 130105, Ecuador
| | - Célia G. Amorim
- LAQV-REQUIMTE/Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, R. Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal;
- Correspondence: (C.G.A.); (J.M.R.-D.); (M.d.C.B.S.M.M.)
| | - Joan Manuel Rodríguez-Díaz
- Laboratorio de Análisis Químicos y Biotecnológicos, Instituto de Investigación, Universidad Técnica de Manabí, Portoviejo 130105, Ecuador
- Departamento de Procesos Químicos, Facultad de Ciencias Matemáticas, Físicas y Químicas, Universidad Técnica de Manabí, Portoviejo 130105, Ecuador
- Correspondence: (C.G.A.); (J.M.R.-D.); (M.d.C.B.S.M.M.)
| | - Maria da Conceição B. S. M. Montenegro
- LAQV-REQUIMTE/Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, R. Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal;
- Correspondence: (C.G.A.); (J.M.R.-D.); (M.d.C.B.S.M.M.)
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5
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Fenyvesi É, Sohajda T. Cyclodextrin-enabled green environmental biotechnologies. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:20085-20097. [PMID: 35064478 DOI: 10.1007/s11356-021-18176-w] [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: 04/06/2021] [Accepted: 12/14/2021] [Indexed: 06/14/2023]
Abstract
Most of the organic compounds contaminating the environment can form inclusion complexes with cyclodextrins resulting in enhanced solubility (a benefit in soil remediation) or just the opposite: reduced mobility by sorption (a benefit in wastewater treatment). Combining biotechnologies with cyclodextrin, a renewable and biodegradable material, green environmental technologies of high efficiency were developed. For instance, the cyclodextrin-enabled soil washing/flushing technologies combined with bioremediation have been demonstrated in full-scale field experiments. The efficiency of tertiary wastewater treatment by sorption of non-biodegradable xenobiotics, such as residual pharmaceutics, was proved. The biofilm formation in fouling processes can be prevented or reduced either by applying cyclodextrin-based coatings or by manipulation of quorum sensing (bacterial communication) via capturing signal molecules.
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Affiliation(s)
- Éva Fenyvesi
- CycloLab Cyclodextrin R&D Laboratory Ltd, Budapest, Hungary.
| | - Tamás Sohajda
- CycloLab Cyclodextrin R&D Laboratory Ltd, Budapest, Hungary
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Crini G, Bradu C, Fourmentin M, Cosentino C, Ribeiro ARL, Morin-Crini N. Sorption of 4-n-nonylphenol, 4-n-octylphenol, and 4-tert-octyphenol on cyclodextrin polymers. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:171-181. [PMID: 34014475 DOI: 10.1007/s11356-021-14435-y] [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: 02/05/2021] [Accepted: 05/11/2021] [Indexed: 06/12/2023]
Abstract
Alkylphenols are industrial pollutants commonly present in wastewater. They are difficult to eliminate by conventional treatment processes, ending up in the sludge of wastewater treatment plants. In this study, we propose to use cross-linked cyclodextrin-based polymers (ECP) as sorbents to treat three alkylphenols, namely, one nonylphenol (4-n-NP) and two octylphenols (4-n-OP and 4-tert-OP), present in aqueous solution by a batch method. The experiments were carried out with five cyclodextrin polymers (α-ECP, β-ECP, γ-ECP, α,β,γ-ECP, and HP-β-ECP). Sorption results showed that all polymers, with the exception of α-ECP, had high sorption capacities between 60 and 100% of the alkylphenols in the concentration range studied (between 25 and 100 μg/L). In all cases, HP-β-ECP has shown the highest removals, regardless of the structure of the molecule. The order obtained was HP-β-ECP >> β-ECP ~ α,β,γ-ECP >> γ-ECP > α-ECP. The 4-tert-OP compound was the best adsorbed, regardless the material and the solution studied. Sorption results also indicated that (i) the sorption efficiency decreased with the increasing of alkylphenol concentration; (ii) sodium chloride had a strong negative effect on the sorption process; and (iii) the performance remained unchanged after five sorption-regeneration cycles. The main sorption mechanism of alkylphenols occurring in ECP was the inclusion within the cyclodextrin cavities. The obtained results proved that cyclodextrin polymers could serve as efficient sorbents for the removal of alkylphenols from real effluents.
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Affiliation(s)
- Grégorio Crini
- Chrono-environnement, Université Bourgogne Franche-Comté, UMR 6249, 16 route de Gray, 25000, Besançon, France
| | - Corina Bradu
- Chrono-environnement, Université Bourgogne Franche-Comté, UMR 6249, 16 route de Gray, 25000, Besançon, France
- PROTMED Centre, 050663, Bucharest, Romania
| | - Marc Fourmentin
- Laboratoire de Physico-Chimie de l'Atmosphère MREI2, Université du Littoral Côte d'Opale, 189A Avenue Maurice Schumann, 59140, Dunkerque, France
| | - Cesare Cosentino
- Chrono-environnement, Université Bourgogne Franche-Comté, UMR 6249, 16 route de Gray, 25000, Besançon, France
- Istituto di Chimica e Biochimica G. Ronzoni, 81 via G. Colombo, 20133, Milan, Italy
| | - Ana Rita Lado Ribeiro
- Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias s/n, 4200-465, Porto, Portugal
| | - Nadia Morin-Crini
- Chrono-environnement, Université Bourgogne Franche-Comté, UMR 6249, 16 route de Gray, 25000, Besançon, France.
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Köse K, Tüysüz M, Aksüt D, Uzun L. Modification of cyclodextrin and use in environmental applications. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:182-209. [PMID: 34212318 DOI: 10.1007/s11356-021-15005-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 06/14/2021] [Indexed: 05/27/2023]
Abstract
Water pollution, which has become a global problem in parallel with environmental pollution, is a problem that needs to be solved urgently, considering the gradual depletion of water resources. The inadequacy of the water treatment methods and the materials used somehow directed the researchers to look for dual character structures such as biocompatible and biodegradable β-cyclodextrin (β-CD). β-CD, which is normally insoluble in water, is used in demanding wastewater applications by being modified with the help of different agents to be water soluble or transformed into polymeric adsorbents as a result of co-polymerization via cross-linkers. In this way, in addition to the host-guest interactions offered by β-CD, secondary forces arising from these interactions provide advantages in terms of regeneration and reusability. However, the adsorption efficiency and synthesis steps need to be improved. Based on the current studies presented in this review, in which cross-linkers and modification methods are also mentioned, suggestions for novel synthesis methods of new-generation β-CD-based materials, criticisms, and recent methods of removal of micropollutants such as heavy metals, industrial dyes, harmful biomolecules, and pharmaceutics wastes are mentioned.
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Affiliation(s)
- Kazım Köse
- Department of Joint Courses, Hitit University, 19040, Çorum, Turkey.
| | - Miraç Tüysüz
- Department of Chemistry, Faculty of Science, Hacettepe University, Ankara, Turkey
| | - Davut Aksüt
- Department of Chemistry, Faculty of Science, Hacettepe University, Ankara, Turkey
| | - Lokman Uzun
- Department of Chemistry, Faculty of Science, Hacettepe University, Ankara, Turkey
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8
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Gómez-Morte T, Gómez-López VM, Lucas-Abellán C, Martínez-Alcalá I, Ayuso M, Martínez-López S, Montemurro N, Pérez S, Barceló D, Fini P, Cosma P, Cerón-Carrasco JP, Fortea MI, Núñez-Delicado E, Gabaldón JA. Removal and toxicity evaluation of a diverse group of drugs from water by a cyclodextrin polymer/pulsed light system. JOURNAL OF HAZARDOUS MATERIALS 2021; 402:123504. [PMID: 32717543 DOI: 10.1016/j.jhazmat.2020.123504] [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: 01/27/2020] [Revised: 07/02/2020] [Accepted: 07/13/2020] [Indexed: 06/11/2023]
Abstract
The presence of pharmaceutical compounds (PhCs) in the effluents of wastewater treatment plants (WWTPs) is an ecological concern. The issue could be alleviated by trapping those substances by cyclodextrin (CD) polymers or photolyzing them by pulsed light (PL). Consequently, a sequential CD polymer/PL system was tested for the removal of PhCs. Firstly, a survey detected the presence of recurrent PhCs in the effluents of local WWTPs. Then, pure water was spiked with 21 PhCs, 100 μg/L each one. The three-dimensional network provides amphiphilic features to the CD polymer that reduced the pollutant concentration by 77 %. Sorption involves a plead of physical and chemical mechanisms hindering the establishment of a general removal model for all compounds. The performed simulations hint that the retention capacity mainly correlates with the computed binding energies, so that theoretical models are revealed as valuable tools for further improvements. The complementary action of PL rose the elimination to 91 %. The polymer can be reused at least 10 times for ibuprofen (model compound) removal, and was able to eliminate the ecotoxicity of an ibuprofen solution. Therefore, this novel sequential CD polymer/PL process seems to be an efficient alternative to eliminate PhCs from wastewater.
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Affiliation(s)
- T Gómez-Morte
- Molecular Recognition and Encapsulation Research Group (REM), Health Sciences Department, Universidad Católica de Murcia (UCAM), Campus de los Jerónimos 135, Guadalupe, 30107, Spain
| | - V M Gómez-López
- Molecular Recognition and Encapsulation Research Group (REM), Health Sciences Department, Universidad Católica de Murcia (UCAM), Campus de los Jerónimos 135, Guadalupe, 30107, Spain
| | - C Lucas-Abellán
- Molecular Recognition and Encapsulation Research Group (REM), Health Sciences Department, Universidad Católica de Murcia (UCAM), Campus de los Jerónimos 135, Guadalupe, 30107, Spain
| | - I Martínez-Alcalá
- Department of Civil Engineering, San Antonio Catholic University of Murcia (UCAM), Av. de los Jerónimos, 135, 30107, Guadalupe, Murcia, Spain
| | - M Ayuso
- Departamento de Medio Ambiente, Centro Tecnológico Nacional de la Conserva y Alimentación, Calle Concordia, s/n, 30500, Molina de Segura, Murcia, Spain
| | - S Martínez-López
- Departamento de Medio Ambiente, Centro Tecnológico Nacional de la Conserva y Alimentación, Calle Concordia, s/n, 30500, Molina de Segura, Murcia, Spain
| | - N Montemurro
- ENFOCHEM, Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA-CSIC), Jordi Girona 18-26, E-08034 Barcelona, Spain
| | - S Pérez
- ENFOCHEM, Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA-CSIC), Jordi Girona 18-26, E-08034 Barcelona, Spain
| | - D Barceló
- ENFOCHEM, Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA-CSIC), Jordi Girona 18-26, E-08034 Barcelona, Spain
| | - P Fini
- Consiglio Nazionale delle Ricerche CNR-IPCF, UOS Bari, Via Orabona, 4, 70126 Bari, Italy
| | - P Cosma
- Università degli Studi "Aldo Moro'' di Bari, Dip. Chimica, Via Orabona, 4, 70126 Bari, Italy
| | - J P Cerón-Carrasco
- Molecular Recognition and Encapsulation Research Group (REM), Health Sciences Department, Universidad Católica de Murcia (UCAM), Campus de los Jerónimos 135, Guadalupe, 30107, Spain
| | - M I Fortea
- Molecular Recognition and Encapsulation Research Group (REM), Health Sciences Department, Universidad Católica de Murcia (UCAM), Campus de los Jerónimos 135, Guadalupe, 30107, Spain
| | - E Núñez-Delicado
- Molecular Recognition and Encapsulation Research Group (REM), Health Sciences Department, Universidad Católica de Murcia (UCAM), Campus de los Jerónimos 135, Guadalupe, 30107, Spain
| | - J A Gabaldón
- Molecular Recognition and Encapsulation Research Group (REM), Health Sciences Department, Universidad Católica de Murcia (UCAM), Campus de los Jerónimos 135, Guadalupe, 30107, Spain.
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Abstract
Chemical pollution of water has raised great concerns among citizens, lawmakers, and nearly all manufacturing industries. As the legislation addressing liquid effluents becomes more stringent, water companies are increasingly scrutinized for their environmental performance. In this context, emergent contaminants represent a major challenge, and the remediation of water bodies and wastewater demands alternative sorbent materials. One of the most promising adsorbing materials for micropolluted water environments involves cyclodextrin (CD) polymers and cyclodextrin-containing polysaccharides. Although cyclodextrins are water-soluble and, thus, unusable as adsorbents in aqueous media, they can be feasibly polymerized by using different crosslinkers such as epichlorohydrin, polycarboxylic acids, and glutaraldehyde. Likewise, with those coupling agents or after substituting hydroxyl groups with more reactive moieties, cyclodextrin units can be covalently attached to a pre-existing polysaccharide. In this direction, the functionalization of chitosan, cellulose, carboxymethyl cellulose, and other carbohydrate polymers with CDs is vastly found in the literature. For the system containing CDs to be used for remediation purposes, there are benefits from a synergy that arises from (i) the ability of CD units to interact selectively with a broad spectrum of molecules, forming inclusion complexes and higher-order supramolecular assemblies, (ii) the functional groups of the crosslinker comonomers, (iii) the three-dimensional structure of the crosslinked network, and/or (iv) the intrinsic characteristics of the polysaccharide backbone. In view of the most recent contributions regarding CD-based copolymers and CD-containing polysaccharides, this review discusses their performance as adsorbents in micropolluted water environments, as well as their interaction patterns, addressing the influence of their structural and physicochemical properties and their functionalization.
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Khalil AM, Schäfer AI. Cross-linked β-cyclodextrin nanofiber composite membrane for steroid hormone micropollutant removal from water. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2020.118228] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Chabbah T, Abderrazak H, Saint Martin P, Casabianca H, Kricheldorf HR, Chatti S. Synthesis of Glux based polymers for removal of benzene derivatives and pesticides from water. POLYM ADVAN TECHNOL 2020. [DOI: 10.1002/pat.4953] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Taha Chabbah
- Laboratoire des Substances Naturelles (LSN, LR19INRAP02)Institut National de Recherche et d'Analyse Physico‐chimique (INRAP), Pôle technologique de Ariana Tunisia
- Faculté des Science de TunisUniversité de Tunis El‐Manar Tunis Tunisia
| | - Houyem Abderrazak
- Laboratoire des Matériaux Utiles (LMU, LR19INRAP01)Institut National de Recherche et d'Analyse Physico‐chimique (INRAP), Pôle technologique de Ariana Tunisia
| | - Patrice Saint Martin
- Institut des Sciences AnalytiquesUniversité Lyon, CNRS, ENS de Lyon, UMR5280 Lyon France
| | - Hervé Casabianca
- Institut des Sciences AnalytiquesUniversité Lyon, CNRS, ENS de Lyon, UMR5280 Lyon France
| | - Hans R. Kricheldorf
- University of Hamburg UHH, Institute of Technical und Macromolecular Chemistry Hamburg Germany
| | - Saber Chatti
- Laboratoire des Substances Naturelles (LSN, LR19INRAP02)Institut National de Recherche et d'Analyse Physico‐chimique (INRAP), Pôle technologique de Ariana Tunisia
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Nanomaterials with Tailored Magnetic Properties as Adsorbents of Organic Pollutants from Wastewaters. INORGANICS 2020. [DOI: 10.3390/inorganics8040024] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Water quality has become one of the most critical issue of concern worldwide. The main challenge of the scientific community is to develop innovative and sustainable water treatment technologies with high efficiencies and low production costs. In recent years, the use of nanomaterials with magnetic properties used as adsorbents in the water decontamination process has received considerable attention since they can be easily separated and reused. This review focuses on the state-of-art of magnetic core–shell nanoparticles and nanocomposites developed for the adsorption of organic pollutants from water. Special attention is paid to magnetic nanoadsorbents based on silica, clay composites, carbonaceous materials, polymers and wastes. Furthermore, we compare different synthesis approaches and adsorption performance of every nanomaterials. The data gathered in this review will provide information for the further development of new efficient water treatment technologies.
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Fenyvesi É, Barkács K, Gruiz K, Varga E, Kenyeres I, Záray G, Szente L. Removal of hazardous micropollutants from treated wastewater using cyclodextrin bead polymer - A pilot demonstration case. JOURNAL OF HAZARDOUS MATERIALS 2020; 383:121181. [PMID: 31541954 DOI: 10.1016/j.jhazmat.2019.121181] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 08/29/2019] [Accepted: 09/06/2019] [Indexed: 06/10/2023]
Abstract
Increasing amount of micropollutants such as drugs, cosmetics and nutritional supplements detected in surface waters represents increasing risk to humans and to the whole environment. These hazardous materials deriving mostly from wastewaters often cannot be effectively removed by conventional water treatment technologies due to their persistence. Some of the innovative technologies use specific sorbents for their removal. Cyclodextrin-based sorbents have already proved to be efficient in laboratory-scale experiments, but no pilot-plant scale demonstration has been performed so far. We are the first who applied this sorption-technology as a tertiary treatment in a pilot-plant scale operating, biomachine-type municipal wastewater treatment plant. As a result of the treatment 7 of 9 typical micropollutants (estradiol, ethinyl estradiol, estriol, diclofenac, ibuprofen, bisphenol A and cholesterol) were removed with >80% efficiency from effluent (reducing their concentration from ∼5 μg/L to <0.001-1 μg/L). GC-MS analysis of water samples showed that many of the micropollutants were removed from the water within a short time, demonstrating the high potential of the applied cyclodextrin-based sorbent in micropollutant removal. The effect-based testing also confirmed the efficiency. There was a correlation between sorption efficacies and binding constants of micropollutant/cyclodextrin inclusion complexes, showing that among others also inclusion complex formation of pollutants with cyclodextrin played important role in sorption mechanism.
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Affiliation(s)
- Éva Fenyvesi
- CycloLab Cyclodextrin R&D Laboratory Ltd., Budapest, Hungary.
| | - Katalin Barkács
- Cooperation Research Center of Environmental Sciences, Eötvös Loránd University, Budapest, Hungary
| | - Katalin Gruiz
- Budapest University of Technology and Economics, Budapest, Hungary
| | - Erzsébet Varga
- CycloLab Cyclodextrin R&D Laboratory Ltd., Budapest, Hungary
| | | | - Gyula Záray
- Cooperation Research Center of Environmental Sciences, Eötvös Loránd University, Budapest, Hungary
| | - Lajos Szente
- CycloLab Cyclodextrin R&D Laboratory Ltd., Budapest, Hungary
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Chitosan Biopolymer from Crab Shell as Recyclable Film to Remove/Recover in Batch Ketoprofen from Water: Understanding the Factors Affecting the Adsorption Process. MATERIALS 2019; 12:ma12233810. [PMID: 31756964 PMCID: PMC6926638 DOI: 10.3390/ma12233810] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 11/08/2019] [Accepted: 11/18/2019] [Indexed: 11/26/2022]
Abstract
Seafood, a delight for many people, is sold in the market as a wide variety of products. However, seafood industries produce many by-products; for example, during the processing, the heads and shells of shellfish are generated as waste. This results in the generation of a large amount of shell waste that is accumulated over time, inducing a major environmental concern. Effective solutions for recycling shell waste should be taken into consideration, and the extraction of commercially useful substances like chitin and its derivates, such as chitosan, could be a valid solution for reducing the seafood waste’s environmental impact. Thus, during this work, we propose the use of chitosan as biowaste, to induce the formation of solid films useful for decontaminating water from emerging pollutants. In particular, ketoprofen was used as a model contaminant, and a high percentage of removal, at least 90%, was obtained in a short time under our experimental conditions. Thus, a comprehensive investigation into the adsorption of ketoprofen onto chitosan film was performed, detailing the nature of the adsorption by studying the effects of pH, temperature changes, and electrolyte presence in the solutions containing the pollutant. The process was found to be pH-dependent, involving meanly electrostatic interactions between the pollutant molecules and chitosan. The endothermic character of the adsorption was inferred. The kinetics of the process was investigated, showing that the pseudo second-order kinetic model best fit the experimental data. A recycling process of the adsorbent was proposed; therefore, the adsorbed pollutant can be recovered by reusing the same adsorbent material for further consecutive cycles of adsorption without affecting the efficiency for ketoprofen removal from water.
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Chitosan Film as Eco-Friendly and Recyclable Bio-Adsorbent to Remove/Recover Diclofenac, Ketoprofen, and their Mixture from Wastewater. Biomolecules 2019; 9:biom9100571. [PMID: 31590344 PMCID: PMC6843693 DOI: 10.3390/biom9100571] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 09/30/2019] [Accepted: 10/02/2019] [Indexed: 12/25/2022] Open
Abstract
This paper reported the first example on the use of chitosan films, without further modification, to remove and recover, through bio-sorption processes, the emerging pollutant Diclofenac from water. The latter was adopted as a model, among non-steroidal anti-inflammatory drugs, by obtaining a maximum adsorption capacity, qmax, on chitosan of about 10 mg/g, under the applied experimental conditions of work. The literature gap about the use of chitosan films, which was already used for dyes and heavy metals removal, to adsorb emerging pollutants from water was covered, claiming the wide range application of chitosan films to remove a different class of pollutants. Several parameters affecting the Diclofenac adsorption process, such as the pH and ionic strength of solutions containing Diclofenac, the amount of the bio-sorbent and pollutant, and the temperature values, were investigated. The kinetics and the adsorption isotherms, along with the thermodynamic parameters (ΔG°, ΔH°, and ΔS°) were also evaluated. The process occurred very efficiently, and Chitosan/Diclofenac amounts dependent, remove about the 90% of the pollutant, in 2 h, from the tested solutions, through electrostatic interaction involving the carboxylic moiety of Diclofenac and Chitosan amino groups. This finding was confirmed by the pH and salt effects on the bio-sorption process, including swelling measurements of Chitosan films and by FTIR-ATR analysis. In detail, the maximum adsorption was observed at pH 5, when pollutant and Chitosan were negatively and positively charged, respectively. By reducing or increasing the pH around this value, a reduced affinity was observed. Accordingly, the presence of salts retarded the Diclofenac removal screening its charges, which hinders the interaction with Chitosan. The sorption was spontaneous (ΔG° < 0) and endothermic (ΔH° > 0) following the pseudo-second order kinetic model. The process was Diclofenac and Chitosan amount dependent. In addition, the Freundlich and Temkin isotherms well described the process, which showed the heterogeneous character of the process. Experiments of the complete desorption were also performed by using NaCl solutions 0.25 M (like sea water salt concentration) proposing the reuse of the pollutant and the recycling of the bio-sorbent lowering the associated costs. The versatility of the adsorbent was reported by exploring the possibility to induce the Diclofenac light-induced degradation after the adsorption and by-products adsorption onto chitosan films. To emphasize the chitosan capacity of treating water, the removal of another pollutant such as Ketoprofen and the mixture of Diclofenac and Ketoprofen were investigated. In this way, a green and eco-friendly production-pollution prevention technology for removing emerging pollutants from water was presented, which reduced the overall environmental impact. This illustrated experiments both in static and dynamic conditions for potential industrial applications.
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Wang Z, Zhang B, Fang C, Liu Z, Fang J, Zhu L. Macroporous membranes doped with micro-mesoporous β-cyclodextrin polymers for ultrafast removal of organic micropollutants from water. Carbohydr Polym 2019; 222:114970. [DOI: 10.1016/j.carbpol.2019.114970] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 05/29/2019] [Accepted: 06/05/2019] [Indexed: 12/31/2022]
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Celebioglu A, Topuz F, Yildiz ZI, Uyar T. Efficient Removal of Polycyclic Aromatic Hydrocarbons and Heavy Metals from Water by Electrospun Nanofibrous Polycyclodextrin Membranes. ACS OMEGA 2019; 4:7850-7860. [PMID: 31459873 PMCID: PMC6648243 DOI: 10.1021/acsomega.9b00279] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 04/17/2019] [Indexed: 05/16/2023]
Abstract
Here, a highly efficient membrane based on electrospun polycyclodextrin (poly-CD) nanofibers was prepared and exploited for the scavenging of various polycyclic aromatic hydrocarbons (PAHs) and heavy metals from water. The poly-CD nanofibers were produced by the electrospinning of CD molecules in the presence of a cross-linker (i.e., 1,2,3,4-butanetetracarboxylic acid), followed by heat treatment to obtain an insoluble poly-CD nanofibrous membrane. The membrane was used for the removal of several PAH compounds (i.e., acenaphthene, fluorene, fluoranthene, phenanthrene, and pyrene) and heavy metals (i.e., Pb2+, Ni2+, Mn2+, Cd2+, Zn2+, and Cu2+) from water over time. Experiments were made on the batch sorption of PAHs and heavy metals from contaminated water to explore the binding affinity of PAHs and heavy metals to the poly-CD membrane. The equilibrium sorption capacity (q e) of the poly-CD nanofibrous membrane was found to be 0.43 ± 0.045 mg/g for PAHs and 4.54 ± 0.063 mg/g for heavy metals, and the sorption kinetics fitted well with the pseudo-second-order model for both types of pollutants. The membrane could be recycled after treatment with acetonitrile or a 2% nitric acid solution and reused up to four times with similar performance. Further, dead-end filtration experiments showed that the PAH removal efficiencies were as high as 92.6 ± 1.6 and 89.9 ± 4.8% in 40 s for the solutions of 400 and 600 μg/L PAHs, respectively. On the other hand, the removal efficiencies for heavy metals during the filtration were 94.3 ± 5.3 and 72.4 ± 23.4% for 10 and 50 mg/L solutions, respectively, suggesting rapid and efficient filtration of heavy metals and PAHs by the nanofibrous poly-CD membrane.
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Affiliation(s)
- Asli Celebioglu
- Institute of Materials
Science & Nanotechnology, Bilkent University, Ankara 06800, Turkey
| | - Fuat Topuz
- Institute of Materials
Science & Nanotechnology, Bilkent University, Ankara 06800, Turkey
| | - Zehra Irem Yildiz
- Institute of Materials
Science & Nanotechnology, Bilkent University, Ankara 06800, Turkey
| | - Tamer Uyar
- Institute of Materials
Science & Nanotechnology, Bilkent University, Ankara 06800, Turkey
- Department of Fiber Science & Apparel
Design, College of Human Ecology, Cornell
University, Ithaca, New York 14853, United
States
- E-mail:
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18
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Gwenzi W, Chaukura N. Organic contaminants in African aquatic systems: Current knowledge, health risks, and future research directions. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 619-620:1493-1514. [PMID: 29734625 DOI: 10.1016/j.scitotenv.2017.11.121] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 10/26/2017] [Accepted: 11/10/2017] [Indexed: 05/23/2023]
Abstract
Organic contaminants (OCs) are increasingly being reported in African aquatic systems, yet a critical evaluation of the literature is still lacking. The objectives of this review were to: (1) identify hotspot reservoirs, transfer pathways and ecological and human risks of OCs, (2) identify potential interventions to minimize the health risks, and (3) highlight knowledge gaps and research constraints. OCs widely reported in aquatic systems include pesticides, pharmaceuticals, plasticizers, solvents, endocrine disrupting compounds, and antimicrobial resistance genes, originating from applications in crop protection, veterinary and animal husbandry, human sanitation and hygiene, human vector and disease control. Potential hotspot reservoirs of OCs include wastewaters, on-site sanitation systems, leachates from non-engineered landfills and contaminated recharge of shallow groundwater systems. OCs could be transferred into humans via drinking of contaminated water, consumption of contaminated crops and aquatic foods, and to a lesser extent, inhalation and dermal contact. Ecological effects including intersex, estrogenicity, and acute and chronic toxicity occur in avian and aquatic species. Although the evidence base of human ecotoxicological effects of OC remains weak, pesticides have been reported in human milk, serum and sperms, pointing to potential chronic and acute toxicity and endocrine disruption. The prevalence of antimicrobials and their resistance genes could in turn lead to antimicrobial resistance in humans. The lack of OC monitoring in drinking water, coupled with over-reliance on untreated drinking water vulnerable to OC contamination predisposes humans to OC health risks. Appropriate water treatment methods, were identified, and a conceptual framework developed to minimize the ecological and human health risks. Future research directions on OC hotspot reservoirs, environmental behaviour and fate, ecotoxicology, epidemiology and interventions to minimize health risks are highlighted. However, lack of advanced analytical facilities in most African countries and other developing regions will continue to constrain OC research for now and in the foreseeable future.
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Affiliation(s)
- Willis Gwenzi
- Biosystems and Environmental Engineering Research Group, Department of Soil Science and Agricultural Engineering, University of Zimbabwe, P.O. Box MP167, Mt. Pleasant, Harare, Zimbabwe.
| | - Nhamo Chaukura
- Nanotechnology and Water Sustainability Research Unit, University of South Africa, PO Box 392, Johannesburg, South Africa
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19
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Effects of oxalate and persulfate addition to Electrofenton and Electrofenton-Fenton processes for oxidation of Ketoprofen: Determination of reactive species and mass balance analysis. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.01.153] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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20
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Morin-Crini N, Winterton P, Fourmentin S, Wilson LD, Fenyvesi É, Crini G. Water-insoluble β-cyclodextrin–epichlorohydrin polymers for removal of pollutants from aqueous solutions by sorption processes using batch studies: A review of inclusion mechanisms. Prog Polym Sci 2018. [DOI: 10.1016/j.progpolymsci.2017.07.004] [Citation(s) in RCA: 106] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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21
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22
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Crini G, Fourmentin S, Fenyvesi É, Torri G, Fourmentin M, Morin-Crini N. Fundamentals and Applications of Cyclodextrins. ENVIRONMENTAL CHEMISTRY FOR A SUSTAINABLE WORLD 2018. [DOI: 10.1007/978-3-319-76159-6_1] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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23
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Using polymer coated nanoparticles for adsorption of micropollutants from water. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.08.008] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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24
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Crini G, Exposito Saintemarie A, Rocchi S, Fourmentin M, Jeanvoine A, Millon L, Morin-Crini N. Simultaneous removal of five triazole fungicides from synthetic solutions on activated carbons and cyclodextrin-based adsorbents. Heliyon 2017; 3:e00380. [PMID: 28920087 PMCID: PMC5576959 DOI: 10.1016/j.heliyon.2017.e00380] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 06/30/2017] [Accepted: 08/03/2017] [Indexed: 12/04/2022] Open
Abstract
In this study, an adsorption-oriented process for the removal of fungicides from polycontaminated aqueous solutions was applied. To remove triazole fungicides from aqueous mixtures of propiconazole (PROPI), tebuconazole (TEBU), epoxiconazole (EPOXI), bromuconazole (BROMU) and difenoconazole (DIFENO), several materials used as adsorbents were compared using batch experiments, namely two conventional activated carbons (ACs) and five nonconventional cross-linked cyclodextrin (CD)-based materials (α-CDP, β-CDP, γ-CDP, αβγ-CDP mixture, and hydroxypropyl-β-CDP). This article presents the abatements obtained. As expected, ACs exhibited the highest levels of triazole fungicide removal: the treatment lowered the five azoles by more than 99%, and adsorption was non-selective. Concerning CD-based materials employed for the first time for the removal of fungicides from polycontaminated aqueous solutions, results were interesting in particular for hydroxypropyl-β-CDP: 1 g of adsorbent placed in 1 L of solution containing 1 mg of each of five triazoles (5 mg in total) was able to remove over half of the fungicide amount (2.97 mg). The order obtained was the following: BROMU << PROPI ≅ EPOXI < TEBU << DIFENO. This indicates that, in the mixture studied, strong competition prevailed among fungicides for the binding sites.
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Affiliation(s)
- Grégorio Crini
- Université de Bourgogne Franche-Comté, UFR Sciences et Techniques, Laboratoire Chrono-environnement, UMR 6249, 16 Route de Gray, 25030 Besançon cedex, France
| | - Adeline Exposito Saintemarie
- Université de Bourgogne Franche-Comté, UFR Sciences et Techniques, Laboratoire Chrono-environnement, UMR 6249, 16 Route de Gray, 25030 Besançon cedex, France
| | - Steffi Rocchi
- Université de Bourgogne Franche-Comté, UFR Sciences et Techniques, Laboratoire Chrono-environnement, UMR 6249, 16 Route de Gray, 25030 Besançon cedex, France.,Parasitologie Mycologie, Centre Hospitalier Régional Universitaire, 25030 Besançon cedex, France
| | - Marc Fourmentin
- Université du Littoral Côte d'Opale, Laboratoire de Physico-Chimie de l'Atmosphère MREI2, 189A Avenue Maurice Schumann, 59140 Dunkerque, France
| | - Audrey Jeanvoine
- Université de Bourgogne Franche-Comté, UFR Sciences et Techniques, Laboratoire Chrono-environnement, UMR 6249, 16 Route de Gray, 25030 Besançon cedex, France.,Parasitologie Mycologie, Centre Hospitalier Régional Universitaire, 25030 Besançon cedex, France
| | - Laurence Millon
- Université de Bourgogne Franche-Comté, UFR Sciences et Techniques, Laboratoire Chrono-environnement, UMR 6249, 16 Route de Gray, 25030 Besançon cedex, France.,Parasitologie Mycologie, Centre Hospitalier Régional Universitaire, 25030 Besançon cedex, France
| | - Nadia Morin-Crini
- Université de Bourgogne Franche-Comté, UFR Sciences et Techniques, Laboratoire Chrono-environnement, UMR 6249, 16 Route de Gray, 25030 Besançon cedex, France
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25
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Weiss-Errico MJ, O'Shea KE. Detailed NMR investigation of cyclodextrin-perfluorinated surfactant interactions in aqueous media. JOURNAL OF HAZARDOUS MATERIALS 2017; 329:57-65. [PMID: 28122278 DOI: 10.1016/j.jhazmat.2017.01.017] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Revised: 01/10/2017] [Accepted: 01/11/2017] [Indexed: 06/06/2023]
Abstract
Perfluorochemicals (PFCs) are contaminants of serious concern because of their toxicological properties, widespread presence in drinking water sources, and incredible stability in the environment. To assess the potential application of α-, β-, and γ-cyclodextrins for PFC remediation, we investigated their complexation with linear fluorinated carboxylic acids, sulfonates, and a sulfonamide with carbon backbones ranging from C4-C9. 19F Nuclear Magnetic Resonance (NMR) spectroscopy studies demonstrated β-CD formed the strongest complexes with these PFCs. The polar head group had a modest influence, but for PFCs with backbones longer than six carbons, strong association constants are observed for 1:1 (K1:1∼105M-1) and 2:1 (K2:1∼103M-1) β-CD:PFC complexes. Excess β-CD can be used to complex 99.5% of the longer chain PFCs. Competition studies with adamantane-carboxylic acid and phenol confirmed the nature and persistence of the β-CD:PFC complex. Detailed analyses of the individual NMR chemical shifts and Job plots indicate the favored positions of the β-CD along the PFC chain. Solution pH, ionic strength, and the presence of humic acid have modest influence on the β-CD:PFC complexes. The strong encapsulation of PFCs by β-CD under a variety of water quality conditions demonstrates the tremendous potential of CD-based materials for the environmental remediation of PFCs.
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Affiliation(s)
- Mary Jo Weiss-Errico
- Department of Chemistry and Biochemistry, Florida International University, 11200 SW Eighth Street, Miami, FL 33199, United States
| | - Kevin E O'Shea
- Department of Chemistry and Biochemistry, Florida International University, 11200 SW Eighth Street, Miami, FL 33199, United States.
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26
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Liu S, Zhong C, Chen J, Zhan J, He J, Zhu Y, Wang Y, Wang L, Ren L. Thermoresponsive Self-Assembled β-Cyclodextrin-Modified Surface for Blood Purification. ACS Biomater Sci Eng 2017; 3:1083-1091. [DOI: 10.1021/acsbiomaterials.7b00156] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sa Liu
- School of Materials
Science and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Chunting Zhong
- National
Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, China
| | - Junjian Chen
- School of Materials
Science and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Jiezhao Zhan
- National
Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, China
| | - Jingcai He
- National
Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, China
| | - Yuchen Zhu
- School of Materials
Science and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Yingjun Wang
- School of Materials
Science and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Lin Wang
- National
Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, China
| | - Li Ren
- School of Materials
Science and Engineering, South China University of Technology, Guangzhou 510641, China
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27
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Shang S, Chiu KL, Jiang S. Synthesis of immobilized poly(vinyl alcohol)/cyclodextrin eco-adsorbent and its application for the removal of ibuprofen from pharmaceutical sewage. J Appl Polym Sci 2017. [DOI: 10.1002/app.44861] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Songmin Shang
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University; Hong Kong
| | - Ka-Lok Chiu
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University; Hong Kong
| | - Shouxiang Jiang
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University; Hong Kong
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28
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Agócs TZ, Puskás I, Varga E, Molnár M, Fenyvesi É. Stabilization of nanosized titanium dioxide by cyclodextrin polymers and its photocatalytic effect on the degradation of wastewater pollutants. Beilstein J Org Chem 2016; 12:2873-2882. [PMID: 28144360 PMCID: PMC5238591 DOI: 10.3762/bjoc.12.286] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 12/19/2016] [Indexed: 11/23/2022] Open
Abstract
Advanced oxidation processes (AOPs) are considered highly competitive water treatment technologies for the removal of organic pollutants. Among AOP techniques, photocatalysis has recently been the most widely studied. Our aims were to investigate how the dispersion of nanosized titanium dioxide (nanoTiO2) applied in photodegradation-based procedures can be stabilized with cyclodextrins in order to obtain a new, more efficient photocatalyst for the purification of waters polluted by xenobiotics applying UV irradiation. During our work, on the one hand, we studied the behavior and stability of nanoTiO2 in cyclodextrin solutions. On the other hand, we used various monomer and polymer cyclodextrin derivatives, and assessed the options for nanoTiO2 stabilization in the presence of various salts and tap water on the basis of turbidity tests. The physical stability of nanoTiO2 dispersions is diminished in the presence of the salts found in tap water (and occurring also in surface waters and ground water) and they are precipitated immediately. This colloidal instability can be improved by cyclodextrin derivatives. Based on the results of our studies we have selected carboxymethyl β-cyclodextrin polymer (CMBCD-P) for stabilization of nanoTiO2 dispersions. The photocatalytic degradation of methylene blue and ibuprofen as model organic pollutants in various media (distilled water, NaCl solution and tap water) has been studied using nanoTiO2 as catalyst stabilized by CMBCD-P. CMBCD-P itself showed a catalytic effect on the UV degradation of methylene blue. In addition to enhancing the colloid stability of nanoTiO2 CMBCD-P showed also synergistic effects in catalyzing the photodecomposition process of the dye. On the other hand, ibuprofen as a model pharmaceutical, a pollutant of emerging concern (EP), was protected by CMBCD-P against the photocatalytic degradation showing that inclusion complex formation can result in opposite effects depending on the structure of the host–guest complex.
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Affiliation(s)
- Tamás Zoltán Agócs
- CycloLab Cyclodextrin R&D Laboratory Ltd, Illatos út 7, Budapest, 1097, Hungary; Department of Applied Biotechnology and Food Science, Budapest University of Technology and Economics, Szent Gellért tér 4, Budapest, 1111, Hungary
| | - István Puskás
- CycloLab Cyclodextrin R&D Laboratory Ltd, Illatos út 7, Budapest, 1097, Hungary
| | - Erzsébet Varga
- CycloLab Cyclodextrin R&D Laboratory Ltd, Illatos út 7, Budapest, 1097, Hungary
| | - Mónika Molnár
- Department of Applied Biotechnology and Food Science, Budapest University of Technology and Economics, Szent Gellért tér 4, Budapest, 1111, Hungary
| | - Éva Fenyvesi
- CycloLab Cyclodextrin R&D Laboratory Ltd, Illatos út 7, Budapest, 1097, Hungary
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29
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Gruiz K, Fekete-Kertész I, Kunglné-Nagy Z, Hajdu C, Feigl V, Vaszita E, Molnár M. Direct toxicity assessment - Methods, evaluation, interpretation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 563-564:803-812. [PMID: 26874641 DOI: 10.1016/j.scitotenv.2016.01.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2015] [Revised: 01/02/2016] [Accepted: 01/04/2016] [Indexed: 06/05/2023]
Abstract
Direct toxicity assessment (DTA) results provide the scale of the actual adverse effect of contaminated environmental samples. DTA results are used in environmental risk management of contaminated water, soil and waste, without explicitly translating the results into chemical concentration. The end points are the same as in environmental toxicology in general, i.e. inhibition rate, decrease in the growth rate or in yield and the 'no effect' or the 'lowest effect' measurement points of the sample dilution-response curve. The measurement unit cannot be a concentration, since the contaminants and their content in the sample is unknown. Thus toxicity is expressed as the sample proportion causing a certain scale of inhibition or no inhibition. Another option for characterizing the scale of toxicity of an environmental sample is equivalencing. Toxicity equivalencing represents an interpretation tool which enables toxicity of unknown mixtures of chemicals be converted into the concentration of an equivalently toxic reference substance. Toxicity equivalencing, (i.e. expressing the toxicity of unknown contaminants as the concentration of the reference) makes DTA results better understandable for non-ecotoxicologists and other professionals educated and thinking based on the chemical model. This paper describes and discusses the role, the principles, the methodology and the interpretation of direct toxicity assessment (DTA) with the aim to contribute to the understanding of the necessity to integrate DTA results into environmental management of contaminated soil and water. The paper also introduces the benefits of the toxicity equivalency method. The use of DTA is illustrated through two case studies. The first case study focuses on DTA of treated wastewater with the aim to characterize the treatment efficacy of a biological wastewater treatment plant by frequent bioassaying. The second case study applied DTA to investigate the cover layers of two bauxite residue (red mud) reservoirs. Based on the DTA results the necessary toxicity attenuation rate of the cover layers was estimated.
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Affiliation(s)
- Katalin Gruiz
- Budapest University of Technology and Economics, Faculty of Chemical Technology and Biotechnology, Department of Applied Biotechnology and Food Science, H-1111 Budapest, Műegyetem Rkp. 3., Hungary.
| | - Ildikó Fekete-Kertész
- Budapest University of Technology and Economics, Faculty of Chemical Technology and Biotechnology, Department of Applied Biotechnology and Food Science, H-1111 Budapest, Műegyetem Rkp. 3., Hungary
| | - Zsuzsanna Kunglné-Nagy
- Budapest University of Technology and Economics, Faculty of Chemical Technology and Biotechnology, Department of Applied Biotechnology and Food Science, H-1111 Budapest, Műegyetem Rkp. 3., Hungary
| | - Csilla Hajdu
- Budapest University of Technology and Economics, Faculty of Chemical Technology and Biotechnology, Department of Applied Biotechnology and Food Science, H-1111 Budapest, Műegyetem Rkp. 3., Hungary
| | - Viktória Feigl
- Budapest University of Technology and Economics, Faculty of Chemical Technology and Biotechnology, Department of Applied Biotechnology and Food Science, H-1111 Budapest, Műegyetem Rkp. 3., Hungary
| | - Emese Vaszita
- Budapest University of Technology and Economics, Faculty of Chemical Technology and Biotechnology, Department of Applied Biotechnology and Food Science, H-1111 Budapest, Műegyetem Rkp. 3., Hungary
| | - Mónika Molnár
- Budapest University of Technology and Economics, Faculty of Chemical Technology and Biotechnology, Department of Applied Biotechnology and Food Science, H-1111 Budapest, Műegyetem Rkp. 3., Hungary
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Alayande AB, Kim LH, Kim IS. Cleaning efficacy of hydroxypropyl-beta-cyclodextrin for biofouling reduction on reverse osmosis membranes. BIOFOULING 2016; 32:359-370. [PMID: 26923225 DOI: 10.1080/08927014.2016.1151008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In this study, an environmentally friendly compound, hydroxypropyl-beta-cyclodextrin (HP-β-CD) was applied to clean reverse osmosis (RO) membranes fouled by microorganisms. The cleaning with HP-β-CD removed the biofilm and resulted in a flux recovery ratio (FRR) of 102%. As cleaning efficiency is sometimes difficult to determine using flux recovery data alone, attached bacterial cells and extracellular polymeric substances (EPS) were quantified after cleaning the biofouled membrane with HP-β-CD. Membrane surface characterization using scanning electron microscopy (SEM), attenuated total reflectance Fourier transform infrared (ATR-FTIR) and atomic force microscopy (AFM) confirmed the effectiveness of HP-β-CD in removal of biofilm from the RO membrane surface. Finally, a comparative study was performed to investigate the competitiveness of HP-β-CD with other known cleaning agents such as sodium dodecyl sulfate (SDS), ethylenediaminetetraacetic acid (EDTA), Tween 20, rhamnolipid, nisin, and surfactin. In all cases, HP-β-CD was superior.
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Affiliation(s)
- Abayomi Babatunde Alayande
- a Global Desalination Research Center (GDRC), School of Environmental Science and Engineering , Gwangju Institute of Science and Technology (GIST) , Gwangju , Republic of Korea
| | - Lan Hee Kim
- a Global Desalination Research Center (GDRC), School of Environmental Science and Engineering , Gwangju Institute of Science and Technology (GIST) , Gwangju , Republic of Korea
| | - In S Kim
- a Global Desalination Research Center (GDRC), School of Environmental Science and Engineering , Gwangju Institute of Science and Technology (GIST) , Gwangju , Republic of Korea
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31
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Cai X, Liu Q, Xia C, Shan D, Du J, Chen J. Recyclable Capture and Destruction of Aqueous Micropollutants Using the Molecule-Specific Cavity of Cyclodextrin Polymer Coupled with KMnO4 Oxidation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2015; 49:9264-9272. [PMID: 26161585 DOI: 10.1021/acs.est.5b01734] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The removal of aqueous micropollutants remains challenging because of the interference of natural water constituents that are typically 3-9 orders of magnitude more concentrated. Cyclodextrins, which feature molecular recognition and are widely applied in separation and catalysis, are promising materials in the development of pollutant treatment technologies. Here, we described the facile integration of cyclodextrin polymer (CDP) adsorption and KMnO4 oxidation for recyclable capture and destruction of aqueous micropollutants (i.e., antibiotics and TBBPA). CDP exhibited adsorption efficiencies of 0.81-88% and 0.81-94% toward 14 pollutants at 50.0 ng/L and 50.0 μg/L, respectively, at a solid-to-liquid ratio of 1:1250. The presence of simulated or natural water constituents (e.g., Mg(2+), Ca(2+), DOC, and a combination thereof) did not decrease the adsorption potential of CDP toward these pollutants because the pollutants, based on molecular specificity, were entrapped in the CD cavity. Subsequent KMnO4 oxidation completely degraded the retained pollutants, demonstrating that the pollutants could be broken down in the cavity. Pristine CDP was rearranged into the structurally loose composites that featured a porous CDP architecture with uniform embedment of δ-MnO2 nanoparticles and different adsorption efficiencies. δ-MnO2 loading was a linear function of the number of times the integrated procedure was repeated, underlying the accurate control of CDP recycling. Thus, this approach may represent a new method for the removal of aqueous micropollutants.
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Affiliation(s)
- Xiyun Cai
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Qingquan Liu
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Chunlong Xia
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Danna Shan
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Juan Du
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Jingwen Chen
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
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Lumholdt L, Fourmentin S, Nielsen TT, Larsen KL. Removal of volatile organic compounds using amphiphilic cyclodextrin-coated polypropylene. Beilstein J Org Chem 2015; 10:2743-50. [PMID: 25550739 PMCID: PMC4273208 DOI: 10.3762/bjoc.10.290] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Accepted: 10/29/2014] [Indexed: 11/23/2022] Open
Abstract
Polypropylene nonwovens were functionalised using a self-assembled, amphiphilic cyclodextrin coating and the potential for water purification by removal of pollutants was studied. As benzene is one of the problematic compounds in the Water Framework Directive, six volatile organic compounds (benzene and five benzene-based substances) were chosen as model compounds. The compounds were tested as a mixture in order to provide a more realistic situation since the wastewater will be a complex mixture containing multiple pollutants. The volatile organic compounds are known to form stable inclusion complexes with cyclodextrins. Six different amphiphilic cyclodextrin derivatives were synthesised in order to elucidate whether or not the uptake abilities of the coating depend on the structure of the derivative. Headspace gas chromatography was used for quantification of the uptake exploiting the volatile nature of benzene and its derivatives. The capacity was shown to increase beyond the expected stoichiometries of guest-host complexes with ratios of up to 16:1.
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Affiliation(s)
- Ludmilla Lumholdt
- Section of Chemistry, Department of Biotechnology, Chemistry and Environmental Engineering, Aalborg University, Sohngaardsholmsvej 57, DK-9000 Aalborg, Denmark
| | - Sophie Fourmentin
- University Lille Nord de France, F-59000 Lille, France ; ULCO, UCEIV, F-59140 Dunkerque, France
| | - Thorbjørn T Nielsen
- Section of Chemistry, Department of Biotechnology, Chemistry and Environmental Engineering, Aalborg University, Sohngaardsholmsvej 57, DK-9000 Aalborg, Denmark
| | - Kim L Larsen
- Section of Chemistry, Department of Biotechnology, Chemistry and Environmental Engineering, Aalborg University, Sohngaardsholmsvej 57, DK-9000 Aalborg, Denmark
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Effect of Buffer Constituents on Retention and Separation in Achiral and Chiral HPLC Systems with β-Cyclodextrin-Based Stationary Phase. Chromatographia 2014. [DOI: 10.1007/s10337-014-2834-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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