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Brumovský M, Micić V, Oborná J, Filip J, Hofmann T, Tunega D. Iron nitride nanoparticles for rapid dechlorination of mixed chlorinated ethene contamination. J Hazard Mater 2023; 442:129988. [PMID: 36155299 DOI: 10.1016/j.jhazmat.2022.129988] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 08/24/2022] [Accepted: 09/13/2022] [Indexed: 06/16/2023]
Abstract
Sulfidation and, more recently, nitriding have been recognized as promising modifications to enhance the selectivity of nanoscale zero-valent iron (nZVI) particles for trichloroethene (TCE). Herein, we investigated the performance of iron nitride (FexN) nanoparticles in the removal of a broader range of chlorinated ethenes (CEs), including tetrachloroethene (PCE), cis-1,2-dichloroethene (cis-DCE), and their mixture with TCE, and compared it to the performance of sulfidated nZVI (S-nZVI) prepared from the same precursor nZVI. Two distinct types of iron nitride (FexN) nanoparticles, containing γ'-Fe4N and ε-Fe2-3N phases, exhibited substantially higher PCE and cis-DCE dechlorination rates compared to S-nZVI. A similar effect was observed with a CE mixture, which was completely dechlorinated by both types of FexN nanoparticles within 10 days, whereas S-nZVI was able to remove only about half of the amount, most of which being TCE. Density functional theory calculations further revealed that the cleavage of the first C-Cl bond was the rate-limiting step for all CEs dechlorinated on the γ'-Fe4N(001) surface, with the reaction barriers of PCE and cis-DCE being 29.9, and 40.8 kJ mol-1, respectively. FexN nanoparticles proved to be highly effective in the remediation of PCE, cis-DCE, and mixed CE contamination.
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Affiliation(s)
- Miroslav Brumovský
- University of Natural Resources and Life Sciences, Vienna, Department of Forest, and Soil Sciences, Institute of Soil Research, Peter-Jordan-Straße 82, 1190 Vienna, Austria; Department of Environmental Geosciences (EDGE), Centre for Microbiology and Environmental Systems Science, University of Vienna, Josef-Holaubek-Platz 2, UZA II, 1090 Vienna, Austria; Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute (CATRIN), Palacký University, Šlechtitelů 27, 779 00 Olomouc, Czech Republic.
| | - Vesna Micić
- Department of Environmental Geosciences (EDGE), Centre for Microbiology and Environmental Systems Science, University of Vienna, Josef-Holaubek-Platz 2, UZA II, 1090 Vienna, Austria
| | - Jana Oborná
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute (CATRIN), Palacký University, Šlechtitelů 27, 779 00 Olomouc, Czech Republic
| | - Jan Filip
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute (CATRIN), Palacký University, Šlechtitelů 27, 779 00 Olomouc, Czech Republic
| | - Thilo Hofmann
- Department of Environmental Geosciences (EDGE), Centre for Microbiology and Environmental Systems Science, University of Vienna, Josef-Holaubek-Platz 2, UZA II, 1090 Vienna, Austria
| | - Daniel Tunega
- University of Natural Resources and Life Sciences, Vienna, Department of Forest, and Soil Sciences, Institute of Soil Research, Peter-Jordan-Straße 82, 1190 Vienna, Austria
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2
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Pacheco NIN, Semerad J, Pivokonsky M, Cajthaml T, Filip J, Busquets-Fité M, Dvorak J, Rico A, Prochazkova P. Effects of silver sulfide nanoparticles on the earthworm Eisenia andrei. Comp Biochem Physiol C Toxicol Pharmacol 2022; 257:109355. [PMID: 35489639 DOI: 10.1016/j.cbpc.2022.109355] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 03/30/2022] [Accepted: 04/22/2022] [Indexed: 11/16/2022]
Abstract
The massive production and use of silver nanoparticles (Ag NPs) have led to their increasing release into the environment. Even though the antimicrobial and cytotoxic effects of native nanoparticles have been well studied, the environmental impacts of transformation products such as silver sulfide nanoparticles (Ag2S NPs) have not been elucidated. In the present study, we assessed the toxicity of Ag2S NPs and silver nitrate (AgNO3), as a source of Ag, to the earthworm Eisenia andrei using a nominal concentration of 5 mg Ag kg-1 soil. We used the OECD guidelines to assess effects on weight loss and mortality for 14 days. After exposure, we also extracted the immune effector cells (coelomocytes) and conducted a battery of biomarker tests. To ensure the quality of the toxicological results, the structural changes of NPs during the experiment and the uptake of silver by the earthworms were monitored. During the experiment, mortality effects were not detected, but a weight loss was observed in the earthworms exposed to Ag2S NPs. Altough Ag2S NPs were engulfed by E. andrei cells, neither phenoloxidase activity nor lipid peroxidation differed from the untreated control group. Cells from earthworms treated with Ag2S NPs exerted very broad value range of nitric oxide (NO) generation, suggesting an imbalance in the NO metabolism. Overall, this study suggests minimal risks associated with Ag2S NPs exposure to earthworms. However, further studies are needed to assure no immunotoxicological or chronic effects on a wider range of terrestrial organisms.
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Affiliation(s)
- Natividad Isabel Navarro Pacheco
- Institute of Microbiology of the Czech Academy of Sciences, Videnska 1083, 142 00 Prague 4, Czech Republic; Cavanilles Institute of Biodiversity and Evolutionary Biology, University of Valencia, c/Catedrático José Beltrán 2, 46980 Paterna, Valencia, Spain.
| | - Jaroslav Semerad
- Institute of Microbiology of the Czech Academy of Sciences, Videnska 1083, 142 00 Prague 4, Czech Republic; Institute for Environmental Studies, Faculty of Science, Charles University, Benatska 2, 128 01 Prague 2, Czech Republic
| | - Martin Pivokonsky
- Institute of Hydrodynamics of the Czech Academy of Sciences, Pod Patankou 30/5, 166 12 Prague, 6, Czech Republic
| | - Tomas Cajthaml
- Institute of Microbiology of the Czech Academy of Sciences, Videnska 1083, 142 00 Prague 4, Czech Republic; Institute for Environmental Studies, Faculty of Science, Charles University, Benatska 2, 128 01 Prague 2, Czech Republic
| | - Jan Filip
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute (CATRIN), Palacký University, Šlechtitelů 27, 783 71 Olomouc, Czech Republic
| | | | - Jiri Dvorak
- Department of Modern Immunotherapy, Institute of Hematology and Blood Transfusion, U Nemocnice 2094, 128 20 Prague, 1, Czech Republic
| | - Andreu Rico
- Cavanilles Institute of Biodiversity and Evolutionary Biology, University of Valencia, c/Catedrático José Beltrán 2, 46980 Paterna, Valencia, Spain; IMDEA Water Institute, Science and Technology Campus of the University of Alcalá, Punto Com 2, 28805 Alcalá de Henares, Madrid, Spain.
| | - Petra Prochazkova
- Institute of Microbiology of the Czech Academy of Sciences, Videnska 1083, 142 00 Prague 4, Czech Republic
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Brumovský M, Oborná J, Micić V, Malina O, Kašlík J, Tunega D, Kolos M, Hofmann T, Karlický F, Filip J. Iron Nitride Nanoparticles for Enhanced Reductive Dechlorination of Trichloroethylene. Environ Sci Technol 2022; 56:4425-4436. [PMID: 35263088 PMCID: PMC8988298 DOI: 10.1021/acs.est.1c08282] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 02/16/2022] [Accepted: 02/24/2022] [Indexed: 05/28/2023]
Abstract
Nitriding has been used for decades to improve the corrosion resistance of iron and steel materials. Moreover, iron nitrides (FexN) have been shown to give an outstanding catalytic performance in a wide range of applications. We demonstrate that nitriding also substantially enhances the reactivity of zerovalent iron nanoparticles (nZVI) used for groundwater remediation, alongside reducing particle corrosion. Two different types of FexN nanoparticles were synthesized by passing gaseous NH3/N2 mixtures over pristine nZVI at elevated temperatures. The resulting particles were composed mostly of face-centered cubic (γ'-Fe4N) and hexagonal close-packed (ε-Fe2-3N) arrangements. Nitriding was found to increase the particles' water contact angle and surface availability of iron in reduced forms. The two types of FexN nanoparticles showed a 20- and 5-fold increase in the trichloroethylene (TCE) dechlorination rate, compared to pristine nZVI, and about a 3-fold reduction in the hydrogen evolution rate. This was related to a low energy barrier of 27.0 kJ mol-1 for the first dechlorination step of TCE on the γ'-Fe4N(001) surface, as revealed by density functional theory calculations with an implicit solvation model. TCE dechlorination experiments with aged particles showed that the γ'-Fe4N nanoparticles retained high reactivity even after three months of aging. This combined theoretical-experimental study shows that FexN nanoparticles represent a new and potentially important tool for TCE dechlorination.
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Affiliation(s)
- Miroslav Brumovský
- Department
of Environmental Geosciences (EDGE), Centre for Microbiology and Environmental
Systems Science, University of Vienna, Althanstrasse 14, UZA II, 1090 Vienna, Austria
- Regional
Centre of Advanced Technologies and Materials, Czech Advanced Technology
and Research Institute (CATRIN), Palacký
University Olomouc, Šlechtitelů 27, 779 00 Olomouc, Czech Republic
- Department
of Forest- and Soil Sciences, Institute of Soil Research, University of Natural Resources and Life Sciences,
Vienna, Peter-Jordan-Straße
82, 1190 Vienna, Austria
| | - Jana Oborná
- Regional
Centre of Advanced Technologies and Materials, Czech Advanced Technology
and Research Institute (CATRIN), Palacký
University Olomouc, Šlechtitelů 27, 779 00 Olomouc, Czech Republic
| | - Vesna Micić
- Department
of Environmental Geosciences (EDGE), Centre for Microbiology and Environmental
Systems Science, University of Vienna, Althanstrasse 14, UZA II, 1090 Vienna, Austria
| | - Ondřej Malina
- Regional
Centre of Advanced Technologies and Materials, Czech Advanced Technology
and Research Institute (CATRIN), Palacký
University Olomouc, Šlechtitelů 27, 779 00 Olomouc, Czech Republic
| | - Josef Kašlík
- Regional
Centre of Advanced Technologies and Materials, Czech Advanced Technology
and Research Institute (CATRIN), Palacký
University Olomouc, Šlechtitelů 27, 779 00 Olomouc, Czech Republic
| | - Daniel Tunega
- Department
of Forest- and Soil Sciences, Institute of Soil Research, University of Natural Resources and Life Sciences,
Vienna, Peter-Jordan-Straße
82, 1190 Vienna, Austria
- School
of Pharmaceutical Science and Technology, Tianjin University, 300072 Tianjin, P.R. China
| | - Miroslav Kolos
- Department
of Physics, Faculty of Science, University
of Ostrava, 701 03 Ostrava, Czech Republic
| | - Thilo Hofmann
- Department
of Environmental Geosciences (EDGE), Centre for Microbiology and Environmental
Systems Science, University of Vienna, Althanstrasse 14, UZA II, 1090 Vienna, Austria
| | - František Karlický
- Department
of Physics, Faculty of Science, University
of Ostrava, 701 03 Ostrava, Czech Republic
| | - Jan Filip
- Regional
Centre of Advanced Technologies and Materials, Czech Advanced Technology
and Research Institute (CATRIN), Palacký
University Olomouc, Šlechtitelů 27, 779 00 Olomouc, Czech Republic
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Butor Škulcová A, Tamášová K, Vojs Staňová A, Bírošová L, Krahulcová M, Gál M, Konečná B, Janíková M, Celec P, Grabicová K, Grabic R, Filip J, Belišová N, Ryba J, Kerekeš K, Špalková V, Híveš J, Mackuľak T. Effervescent ferrate(VI)-based tablets as an effective means for removal SARS-CoV-2 RNA, pharmaceuticals and resistant bacteria from wastewater. J Water Process Eng 2021; 43:102223. [PMID: 35592837 PMCID: PMC8290487 DOI: 10.1016/j.jwpe.2021.102223] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 07/10/2021] [Accepted: 07/12/2021] [Indexed: 06/14/2023]
Abstract
Waterborne pathogens including viruses, bacteria and micropollutants secreted from population can spread through the sewerage system. In this study, the efficiency of unique effervescent ferrate-based tablets was evaluated for total RNA and DNA removal, disinfection and degradation of micropollutants in hospital wastewater. For the purpose of testing, proposed tablets (based on citric acid or sodium dihydrogen phosphate) were used for various types of hospital wastewater with specific biological and chemical contamination. Total RNA destruction efficiency using tablets was 70-100% depending on the type of acidic component. DNA destruction efficiency was lower on the level 51-94% depending on the type of acidic component. In addition, our study confirms that effervescent ferrate-based tablets are able to efficiently remove of SARS-CoV-2 RNA from wastewater. Degradation of often detected micropollutants (antiepileptic, antidepressant, antihistamine, hypertensive and their metabolites) was dependent on the type of detected pharmaceuticals and on the acidic component used. Sodium dihydrogen phosphate based tablet appeared to be more effective than citric acid based tablet and removed some pharmaceuticals with efficiency higher than 97%. Last but not least, the disinfection ability was also verified. Tableted ferrates were confirmed to be an effective disinfectant and no resistant microorganisms were observed after treatment. Total and antibiotic resistant bacteria (coliforms and enterococci) were determined by cultivation on diagnostic selective agar growth media.
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Affiliation(s)
- Andrea Butor Škulcová
- Department of Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, SK-812 37 Bratislava, Slovak Republic
| | - Katarína Tamášová
- Department of Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, SK-812 37 Bratislava, Slovak Republic
| | - Andrea Vojs Staňová
- Department of Analytical Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynská dolina, Ilkovičova 6, SK-842 15 Bratislava 4, Slovak Republic
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Faculty of Fisheries and Protection of Waters, University of South Bohemia in České Budějovice, Zátiší 728/II, CZ-389 25 Vodňany, Czech Republic
| | - Lucia Bírošová
- Department Nutrition and Food Quality Assessment, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, SK-812 37 Bratislava, Slovak Republic
| | - Monika Krahulcová
- Department Nutrition and Food Quality Assessment, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, SK-812 37 Bratislava, Slovak Republic
| | - Miroslav Gál
- Department of Inorganic Technology, Institute of Inorganic Chemistry, Technology and Materials, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, SK-812 37 Bratislava, Slovak Republic
| | - Barbora Konečná
- Institute of Molecular Biomedicine, Faculty of Medicine, Comenius University in Bratislava, Sasinkova 4, SK-811 08 Bratislava, Slovak Republic
| | - Monika Janíková
- Institute of Molecular Biomedicine, Faculty of Medicine, Comenius University in Bratislava, Sasinkova 4, SK-811 08 Bratislava, Slovak Republic
| | - Peter Celec
- Institute of Molecular Biomedicine, Faculty of Medicine, Comenius University in Bratislava, Sasinkova 4, SK-811 08 Bratislava, Slovak Republic
- Institute of Pathophysiology, Faculty of Medicine, Comenius University, Sasinkova 4, 811 08 Bratislava, Slovakia
- Department of Molecular Biology, Faculty of Natural Sciences, Comenius University, Ilkovičova 6, 842 15 Bratislava, Slovakia
| | - Kateřina Grabicová
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Faculty of Fisheries and Protection of Waters, University of South Bohemia in České Budějovice, Zátiší 728/II, CZ-389 25 Vodňany, Czech Republic
| | - Roman Grabic
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Faculty of Fisheries and Protection of Waters, University of South Bohemia in České Budějovice, Zátiší 728/II, CZ-389 25 Vodňany, Czech Republic
| | - Jan Filip
- Regional Centre of Advanced Technologies and Materials, Palacký University Olomouc, Šlechtitelů 27, CZ-783 71 Olomouc, Czech Republic
| | - Noemi Belišová
- Department of Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, SK-812 37 Bratislava, Slovak Republic
| | - Jozef Ryba
- Department of Polymer Processing, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Krškanská 21, SK-949 01 Nitra, Slovak Republic
| | - Kamil Kerekeš
- Department of Inorganic Technology, Institute of Inorganic Chemistry, Technology and Materials, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, SK-812 37 Bratislava, Slovak Republic
| | - Viera Špalková
- Department of Inorganic Technology, Institute of Inorganic Chemistry, Technology and Materials, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, SK-812 37 Bratislava, Slovak Republic
- Department of Zoology and Fisheries, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcka 129, 165 00, Praha 6, Suchdol, Czech Republic
| | - Ján Híveš
- Department of Inorganic Technology, Institute of Inorganic Chemistry, Technology and Materials, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, SK-812 37 Bratislava, Slovak Republic
| | - Tomáš Mackuľak
- Department of Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, SK-812 37 Bratislava, Slovak Republic
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Semerád J, Ševců A, Nguyen NHA, Hrabák P, Špánek R, Bobčíková K, Pospíšková K, Filip J, Medřík I, Kašlík J, Šafařík I, Filipová A, Nosek J, Pivokonský M, Cajthaml T. Discovering the potential of an nZVI-biochar composite as a material for the nanobioremediation of chlorinated solvents in groundwater: Degradation efficiency and effect on resident microorganisms. Chemosphere 2021; 281:130915. [PMID: 34029963 DOI: 10.1016/j.chemosphere.2021.130915] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 04/22/2021] [Accepted: 05/13/2021] [Indexed: 06/12/2023]
Abstract
Abiotic and biotic remediation of chlorinated ethenes (CEs) in groundwater from a real contaminated site was studied using biochar-based composites containing nanoscale zero-valent iron (nZVI/BC) and natural resident microbes/specific CE degraders supported by a whey addition. The material represented by the biochar matrix decorated by isolated iron nanoparticles or their aggregates, along with the added whey, was capable of a stepwise dechlorination of CEs. The tested materials (nZVI/BC and BC) were able to decrease the original TCE concentration by 99% in 30 days. Nevertheless, regarding the transformation products, it was clear that biotic as well as abiotic transformation mechanisms were involved in the transformation process when nonchlorinated volatiles (i.e., methane, ethane, ethene, and acetylene) were detected after the application of nZVI/BC and nZVI/BC with whey. The whey addition caused a massive increase in bacterial biomass in the groundwater samples (monitored by 16S rRNA sequencing and qPCR) that corresponded with the transformation of trichloro- and dichloro-CEs, and this process was accompanied by the formation of less chlorinated products. Moreover, the biostimulation step also eliminated the adverse effect caused by nZVI/BC (decrease in microbial biomass after nZVI/BC addition). The nZVI/BC material or its aging products, and probably together with vinyl chloride-respiring bacteria, were able to continue the further reductive dechlorination of dichlorinated CEs into nonhalogenated volatiles. Overall, the results of the present study demonstrate the potential, feasibility, and environmental safety of this nanobioremediation approach.
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Affiliation(s)
- Jaroslav Semerád
- Institute of Microbiology, Czech Academy of Sciences, Vídeňská 1083, CZ-142 20, Prague 4, Czech Republic; Institute for Environmental Studies, Faculty of Science, Charles University, Benátská 2, CZ-128 01, Prague 2, Czech Republic
| | - Alena Ševců
- Technical University of Liberec, Studentská 2, CZ-461 17, Liberec, Czech Republic.
| | - Nhung H A Nguyen
- Technical University of Liberec, Studentská 2, CZ-461 17, Liberec, Czech Republic
| | - Pavel Hrabák
- Technical University of Liberec, Studentská 2, CZ-461 17, Liberec, Czech Republic
| | - Roman Špánek
- Technical University of Liberec, Studentská 2, CZ-461 17, Liberec, Czech Republic
| | - Kateřina Bobčíková
- Technical University of Liberec, Studentská 2, CZ-461 17, Liberec, Czech Republic
| | - Kristýna Pospíšková
- Regional Centre of Advanced Technologies and Materials, Palacký University, Šlechtitelů 27, CZ-783 71, Olomouc, Czech Republic
| | - Jan Filip
- Regional Centre of Advanced Technologies and Materials, Palacký University, Šlechtitelů 27, CZ-783 71, Olomouc, Czech Republic
| | - Ivo Medřík
- Regional Centre of Advanced Technologies and Materials, Palacký University, Šlechtitelů 27, CZ-783 71, Olomouc, Czech Republic
| | - Josef Kašlík
- Regional Centre of Advanced Technologies and Materials, Palacký University, Šlechtitelů 27, CZ-783 71, Olomouc, Czech Republic
| | - Ivo Šafařík
- Regional Centre of Advanced Technologies and Materials, Palacký University, Šlechtitelů 27, CZ-783 71, Olomouc, Czech Republic; Department of Nanobiotechnology, Biology Centre, ISB, CAS, Na Sadkach 7, 370 05, Ceske Budejovice, Czech Republic
| | - Alena Filipová
- Institute of Microbiology, Czech Academy of Sciences, Vídeňská 1083, CZ-142 20, Prague 4, Czech Republic
| | - Jaroslav Nosek
- Technical University of Liberec, Studentská 2, CZ-461 17, Liberec, Czech Republic
| | - Martin Pivokonský
- Institute of Hydrodynamics of the Czech Academy of Sciences, Pod Patankou 30/5, CZ-166 12, Prague 6, Czech Republic
| | - Tomáš Cajthaml
- Institute of Microbiology, Czech Academy of Sciences, Vídeňská 1083, CZ-142 20, Prague 4, Czech Republic; Institute for Environmental Studies, Faculty of Science, Charles University, Benátská 2, CZ-128 01, Prague 2, Czech Republic.
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Vaclavu T, Filip J, Niznansky D, Vaclavu M, Endres J, Dopita M, Danis S. Structure identification of Fe–Fe
x
O
y
core–shell nanoparticles and their time stability. Acta Crystallogr A Found Adv 2021. [DOI: 10.1107/s0108767321087067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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7
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Islam S, Redwan A, Millerick K, Filip J, Fan L, Yan W. Effect of Copresence of Zerovalent Iron and Sulfate Reducing Bacteria on Reductive Dechlorination of Trichloroethylene. Environ Sci Technol 2021; 55:4851-4861. [PMID: 33787255 DOI: 10.1021/acs.est.0c07702] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Sulfur amendment of zerovalent iron (ZVI) materials has been shown to improve the reactivity and selectivity of ZVI toward a select group of organohalide contaminants in groundwater, most notably trichloroethene (TCE). In previous studies, chemical or mechanochemical sulfidation methods were used; however, the potential of using sulfate-reducing bacteria (SRB) to enable sulfur amendment has not been closely examined. In this study, lab-synthesized nanoscale ZVI (nZVI) and Peerless iron particles (ZVIPLS) were treated in a sulfate-reducing monoculture (D. desulfuricans) and an enrichment culture derived from freshwater sediments (AMR-1) prior to reactivity assessments with TCE as the model contaminant. ZVI conditioned in both cultures exhibited higher dechlorination efficiencies compared to unamended ZVIs. Remarkably, nZVI and ZVIPLS exposed to AMR-1 attained similar TCE dechlorination rates as their counterparts receiving chemical sulfidation (i.e., S-nZVI) using previously reported method. Product distribution data show that, in the SRB-ZVI system, abiotic dechlorination is the dominant TCE reduction pathway. In addition to dissolved sulfide, biogenic or synthesized FeS particles can enhance nZVI reactivity even as nZVI and FeS were not in direct contact, implying that SRB may influence the reactivity of ZVI via multiple mechanisms in different remediation situations. A shift in Archaea abundance in AMR-1 with nZVI amendment was observed but not with ZVIPLS. Overall, the synergy exhibited in the SRB-ZVI system may offer a valuable remediation strategy to overcome limitations of standalone biological or abiotic dechlorination approaches for chlorinated solvent abatement.
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Affiliation(s)
- Syful Islam
- Department of Civil, Environmental and Construction Engineering, Texas Tech University, Lubbock, Texas 79409, United States
| | - Asef Redwan
- Department of Civil, Environmental and Construction Engineering, Texas Tech University, Lubbock, Texas 79409, United States
| | - Kayleigh Millerick
- Department of Civil, Environmental and Construction Engineering, Texas Tech University, Lubbock, Texas 79409, United States
| | - Jan Filip
- Regional Centre of Advance Technologies and Material, Palacky University, Olomouc, Czech Republic
| | - Lingfei Fan
- Department of Civil and Environmental Engineering, University of Massachusetts-Lowell, Massachusetts 01854, United States
| | - Weile Yan
- Department of Civil, Environmental and Construction Engineering, Texas Tech University, Lubbock, Texas 79409, United States
- Department of Civil and Environmental Engineering, University of Massachusetts-Lowell, Massachusetts 01854, United States
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Brumovský M, Oborná J, Lacina P, Hegedüs M, Sracek O, Kolařík J, Petr M, Kašlík J, Hofmann T, Filip J. Sulfidated nano-scale zerovalent iron is able to effectively reduce in situ hexavalent chromium in a contaminated aquifer. J Hazard Mater 2021; 405:124665. [PMID: 33301974 DOI: 10.1016/j.jhazmat.2020.124665] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 11/04/2020] [Accepted: 11/21/2020] [Indexed: 06/12/2023]
Abstract
In a number of laboratory studies, sulfidated nanoscale zero-valent iron (S-nZVI) particles showed increased reactivity, reducing capacity, and electron selectivity for Cr(VI) removal from contaminated waters. In our study, core-shell S-nZVI particles were successfully injected into an aquifer contaminated with Cr(VI) at a former chrome plating facility. S-nZVI migrated towards monitoring wells, resulting in a rapid decrease in Cr(VI) and Crtot concentrations and a long-term decrease in groundwater redox potential observed even 35 m downstream the nearest injection well. Characterization of materials recovered from the injection and monitoring wells confirmed the presence of nZVI particles, together with iron corrosion products. Chromium was identified on the surface of the recovered iron particles as Cr(III), and its occurrence was linked to the formation of insoluble chromium-iron (oxyhydr)oxides such as CrxFe(1-x)(OH)3(s). Injected S-nZVI particles formed aggregates, which were slowly transformed into iron (oxyhydr)oxides and carbonate green rust. Elevated contents of Fe0 were detected even several months after injection, indicating good S-nZVI longevity. The sulfide shell was gradually disintegrated and/or dissolved. Geochemical modelling confirmed the overall stability of the resulting Cr(III) phase at field conditions. This study demonstrates the applicability of S-nZVI for the remediation of a Cr(VI)-contaminated aquifer.
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Affiliation(s)
- Miroslav Brumovský
- Regional Centre of Advanced Technologies and Materials, Palacký University Olomouc, Šlechtitelů 27, 783 71 Olomouc, Czech Republic; Department of Environmental Geosciences (EDGE), Centre for Microbiology and Environmental Systems Science, University of Vienna, Althanstr. 14, UZA II, 1090 Vienna, Austria.
| | - Jana Oborná
- Regional Centre of Advanced Technologies and Materials, Palacký University Olomouc, Šlechtitelů 27, 783 71 Olomouc, Czech Republic
| | - Petr Lacina
- GEOtest, a.s., Šmahova 1244/112, 627 00 Brno, Czech Republic
| | - Michal Hegedüs
- GEOtest, a.s., Šmahova 1244/112, 627 00 Brno, Czech Republic; Institute of Environmental and Chemical Engineering, Faculty of Chemical Technology, University of Pardubice, Studentská 95, 532 10 Pardubice, Czech Republic
| | - Ondra Sracek
- Department of Geology, Faculty of Science, Palacký University Olomouc, 17. listopadu 12, 771 46 Olomouc, Czech Republic
| | - Jan Kolařík
- Regional Centre of Advanced Technologies and Materials, Palacký University Olomouc, Šlechtitelů 27, 783 71 Olomouc, Czech Republic
| | - Martin Petr
- Regional Centre of Advanced Technologies and Materials, Palacký University Olomouc, Šlechtitelů 27, 783 71 Olomouc, Czech Republic
| | - Josef Kašlík
- Regional Centre of Advanced Technologies and Materials, Palacký University Olomouc, Šlechtitelů 27, 783 71 Olomouc, Czech Republic
| | - Thilo Hofmann
- Department of Environmental Geosciences (EDGE), Centre for Microbiology and Environmental Systems Science, University of Vienna, Althanstr. 14, UZA II, 1090 Vienna, Austria
| | - Jan Filip
- Regional Centre of Advanced Technologies and Materials, Palacký University Olomouc, Šlechtitelů 27, 783 71 Olomouc, Czech Republic.
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9
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Kolařík J, Bakandritsos A, Bad'ura Z, Lo R, Zoppellaro G, Kment Š, Naldoni A, Zhang Y, Petr M, Tomanec O, Filip J, Otyepka M, Hobza P, Zbořil R. Carboxylated Graphene for Radical-Assisted Ultra-Trace-Level Water Treatment and Noble Metal Recovery. ACS Nano 2021; 15:3349-3358. [PMID: 33464824 DOI: 10.1021/acsnano.0c10093] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Sorption technologies, enabling removal of heavy metals, play a pivotal role in meeting the global demands for unrestricted access to drinking water. Standard sorption technologies suffer from limited efficiency related to the weak sorbent-metal interaction. Further challenges include the development of technologies enabling smart metal recovery and sorbent regeneration. To this end, a densely functionalized graphene, with 33% by mass content of carboxyl groups, linked through direct C-C bonds (graphene acid, GA) represents a previously unexplored solution to this challenge. GA revealed excellent efficiency for removal of highly toxic metals, such as Cd2+ and Pb2+. Due to its selective chemistry, GA can bind heavy metals with high affinity, even at concentrations of 1 mg L-1 and in the presence of competing ions of natural drinking water, and reduce them down to drinking water allowance levels of a few μg L-1. This is not only due to carboxyl groups but also due to the stable radical centers of the GA structure, enabling metal ion-radical interactions, as proved by EPR, XPS, and density functional theory calculations. GA offers full structural integrity during the highly acidic and basic treatment, which is exploited for noble metal recovery (Ga3+, In3+, Pd2+) and sorbent regeneration. Owing to these attributes, GA represents a fully reusable metal sorbent, applicable also in electrochemical energy technologies, as illustrated with a GA/Pt catalyst derived from Pt4+-contaminated water.
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Affiliation(s)
- Jan Kolařík
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacký University, Křížkovského 511/8, 779 00 Olomouc, Czech Republic
| | - Aristides Bakandritsos
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacký University, Křížkovského 511/8, 779 00 Olomouc, Czech Republic
- Nanotechnology Centre, Centre of Energy and Environmental Technologies, VŠB-Technical University of Ostrava, 17. Listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic
| | - Zdeněk Bad'ura
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacký University, Křížkovského 511/8, 779 00 Olomouc, Czech Republic
- Department of Experimental Physics, Faculty of Science, Palacký University Olomouc, 17. Listopadu 1192/12, 771 46 Olomouc, Czech Republic
| | - Rabindranath Lo
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacký University, Křížkovského 511/8, 779 00 Olomouc, Czech Republic
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nám. 2, 166 10 Prague 6, Czech Republic
| | - Giorgio Zoppellaro
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacký University, Křížkovského 511/8, 779 00 Olomouc, Czech Republic
| | - Štěpán Kment
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacký University, Křížkovského 511/8, 779 00 Olomouc, Czech Republic
- Nanotechnology Centre, Centre of Energy and Environmental Technologies, VŠB-Technical University of Ostrava, 17. Listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic
| | - Alberto Naldoni
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacký University, Křížkovského 511/8, 779 00 Olomouc, Czech Republic
| | - Yu Zhang
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacký University, Křížkovského 511/8, 779 00 Olomouc, Czech Republic
| | - Martin Petr
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacký University, Křížkovského 511/8, 779 00 Olomouc, Czech Republic
| | - Ondřej Tomanec
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacký University, Křížkovského 511/8, 779 00 Olomouc, Czech Republic
| | - Jan Filip
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacký University, Křížkovského 511/8, 779 00 Olomouc, Czech Republic
| | - Michal Otyepka
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacký University, Křížkovského 511/8, 779 00 Olomouc, Czech Republic
| | - Pavel Hobza
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacký University, Křížkovského 511/8, 779 00 Olomouc, Czech Republic
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nám. 2, 166 10 Prague 6, Czech Republic
| | - Radek Zbořil
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacký University, Křížkovského 511/8, 779 00 Olomouc, Czech Republic
- Nanotechnology Centre, Centre of Energy and Environmental Technologies, VŠB-Technical University of Ostrava, 17. Listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nám. 2, 166 10 Prague 6, Czech Republic
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10
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Silvestri D, Wacławek S, Sobel B, Torres–Mendieta R, Pawlyta M, Padil VV, Filip J, Černík M. Modification of nZVI with a bio-conjugate containing amine and carbonyl functional groups for catalytic activation of persulfate. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.117880] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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11
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Molinari S, Magro M, Baratella D, Salviulo G, Ugolotti J, Filip J, Petr M, Tucek J, Zoppellaro G, Zboril R, Vianello F. Smart synthetic maghemite nanoparticles with unique surface properties encode binding specificity toward As III. Sci Total Environ 2020; 741:140175. [PMID: 32570065 DOI: 10.1016/j.scitotenv.2020.140175] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 06/09/2020] [Accepted: 06/10/2020] [Indexed: 06/11/2023]
Abstract
Pristine ɣ-Fe2O3 nanoparticles, called surface active maghemite nanoparticles (SAMNs) display unprecedented colloidal stability and specific binding properties. Herein, the interactions of SAMNs with AsV and AsIII as surface molecular probes were comparatively studied. Thermodynamic and kinetic characterizations, along with chemical and structural analysis of SAMN@As complexes, evidenced two distinct binding modalities. Arsenite, emerged as an elective and specific ligand for SAMNs, whereas arsenate adsorption was more labile, pH dependent and ruled by different binding possibilities. In particular, AsIII oxyacid exclusively interacts through inner-sphere coordination occupying available surface crystal positions resembling a key-lock fitting, while AsV leads to both outer-sphere and inner-sphere complexes. Noteworthy, discrimination between AsV and AsIII was never reported for nanostructured maghemite evidencing the importance of synthetic route on surface properties of the nanomaterial. The present report, besides enriching the chemistry of nanosized iron oxides, suggests SAMNs application for the remediation of water contaminated by AsIII, the most threatening As species in water.
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Affiliation(s)
- Simone Molinari
- Department of Geosciences, University of Padua, via Gradenigo 6, 35131 Padova, Italy.
| | - Massimiliano Magro
- Department of Comparative Biomedicine and Food Science, University of Padua, viale dell'Università 16, 35020 Legnaro, Italy.
| | - Davide Baratella
- Department of Comparative Biomedicine and Food Science, University of Padua, viale dell'Università 16, 35020 Legnaro, Italy.
| | - Gabriella Salviulo
- Department of Geosciences, University of Padua, via Gradenigo 6, 35131 Padova, Italy.
| | - Juri Ugolotti
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Palacky University in Olomouc, Slechtitelu 27, 783 71 Olomouc, Czech Republic.
| | - Jan Filip
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Palacky University in Olomouc, Slechtitelu 27, 783 71 Olomouc, Czech Republic.
| | - Martin Petr
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Palacky University in Olomouc, Slechtitelu 27, 783 71 Olomouc, Czech Republic.
| | - Jiri Tucek
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Palacky University in Olomouc, Slechtitelu 27, 783 71 Olomouc, Czech Republic.
| | - Giorgio Zoppellaro
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Palacky University in Olomouc, Slechtitelu 27, 783 71 Olomouc, Czech Republic.
| | - Radek Zboril
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Palacky University in Olomouc, Slechtitelu 27, 783 71 Olomouc, Czech Republic.
| | - Fabio Vianello
- Department of Comparative Biomedicine and Food Science, University of Padua, viale dell'Università 16, 35020 Legnaro, Italy.
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12
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Brumovský M, Filip J, Malina O, Oborná J, Sracek O, Reichenauer TG, Andrýsková P, Zbořil R. Core-Shell Fe/FeS Nanoparticles with Controlled Shell Thickness for Enhanced Trichloroethylene Removal. ACS Appl Mater Interfaces 2020; 12:35424-35434. [PMID: 32640155 PMCID: PMC7404211 DOI: 10.1021/acsami.0c08626] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 07/07/2020] [Indexed: 05/28/2023]
Abstract
Zero-valent iron nanoparticles (nZVI) treated by reduced sulfur compounds (i.e., sulfidated nZVI, S-nZVI) have attracted increased attention as promising materials for environmental remediation. While the preparation of S-nZVI and its reactions with various groundwater contaminants such as trichloroethylene (TCE) were already a subject of several studies, nanoparticle synthesis procedures investigated so far were suited mainly for laboratory-scale preparation with only a limited possibility of easy and cost-effective large-scale production and FeS shell property control. This study presents a novel approach for synthesizing S-nZVI using commercially available nZVI particles that are treated with sodium sulfide in a concentrated slurry. This leads to S-nZVI particles that do not contain hazardous boron residues and can be easily prepared off-site. The resulting S-nZVI exhibits a core-shell structure where zero-valent iron is the dominant phase in the core, while the shell contains mostly amorphous iron sulfides. The average FeS shell thickness can be controlled by the applied sulfide concentration. Up to a 12-fold increase in the TCE removal and a 7-fold increase in the electron efficiency were observed upon amending nZVI with sulfide. Although the FeS shell thickness correlated with surface-area-normalized TCE removal rates, sulfidation negatively impacted the particle surface area, resulting in an optimal FeS shell thickness of approximately 7.3 nm. This corresponded to a particle S/Fe mass ratio of 0.0195. At all sulfide doses, the TCE degradation products were only fully dechlorinated hydrocarbons. Moreover, a nearly 100% chlorine balance was found at the end of the experiments, further confirming complete TCE degradation and the absence of chlorinated transformation products. The newly synthesized S-nZVI particles thus represent a promising remedial agent applicable at sites contaminated with TCE.
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Affiliation(s)
- Miroslav Brumovský
- Regional
Centre of Advanced Technologies and Materials, Palacký University Olomouc, Šlechtitelů 27, Olomouc 783 71, Czech
Republic
- Department
of Environmental Geosciences, Centre for Microbiology and Environmental
Systems Science, University of Vienna, Althanstraße 14, UZA II, Vienna 1090, Austria
| | - Jan Filip
- Regional
Centre of Advanced Technologies and Materials, Palacký University Olomouc, Šlechtitelů 27, Olomouc 783 71, Czech
Republic
| | - Ondřej Malina
- Regional
Centre of Advanced Technologies and Materials, Palacký University Olomouc, Šlechtitelů 27, Olomouc 783 71, Czech
Republic
| | - Jana Oborná
- Regional
Centre of Advanced Technologies and Materials, Palacký University Olomouc, Šlechtitelů 27, Olomouc 783 71, Czech
Republic
| | - Ondra Sracek
- Department
of Geology of Science, Palacký University
Olomouc, 17 listopadu 12, Olomouc 771 46, Czech Republic
| | - Thomas G. Reichenauer
- AIT
Austrian Institute of Technology GmbH, Konrad-Lorenz-Straße 24, Tulln an der Donau 3430, Austria
| | - Pavlína Andrýsková
- Regional
Centre of Advanced Technologies and Materials, Palacký University Olomouc, Šlechtitelů 27, Olomouc 783 71, Czech
Republic
| | - Radek Zbořil
- Regional
Centre of Advanced Technologies and Materials, Palacký University Olomouc, Šlechtitelů 27, Olomouc 783 71, Czech
Republic
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13
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Monga Y, Kumar P, Sharma RK, Filip J, Varma RS, Zbořil R, Gawande MB. Sustainable Synthesis of Nanoscale Zerovalent Iron Particles for Environmental Remediation. ChemSusChem 2020; 13:3288-3305. [PMID: 32357282 DOI: 10.1002/cssc.202000290] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 04/27/2020] [Indexed: 06/11/2023]
Abstract
Nanoscale zerovalent iron (nZVI) particles represent an important material for diverse environmental applications because of their exceptional electron-donating properties, which can be exploited for applications such as reduction, catalysis, adsorption, and degradation of a broad range of pollutants. The synthesis and assembly of nZVI by using biological and natural sustainable resources is an attractive option for alleviating environmental contamination worldwide. In this Review, various green synthesis pathways for generating nZVI particles are summarized and compared with conventional chemical and physical methods. In addition to describing the latest environmentally benign methods for the synthesis of nZVI, their properties and interactions with diverse biomolecules are discussed, especially in the context of environmental remediation and catalysis. Future prospects in the field are also considered.
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Affiliation(s)
- Yukti Monga
- Green Chem. Network Centre, Department of Chemistry, University of Delhi, Delhi, 110007, India
| | - Pawan Kumar
- Regional Centre of Advanced Technologies and Materials, Palacký University Olomouc, Šlechtitelů 27, 783 71, Olomouc, Czech Republic
| | - Rakesh K Sharma
- Green Chem. Network Centre, Department of Chemistry, University of Delhi, Delhi, 110007, India
| | - Jan Filip
- Regional Centre of Advanced Technologies and Materials, Palacký University Olomouc, Šlechtitelů 27, 783 71, Olomouc, Czech Republic
| | - Rajender S Varma
- Regional Centre of Advanced Technologies and Materials, Palacký University Olomouc, Šlechtitelů 27, 783 71, Olomouc, Czech Republic
| | - Radek Zbořil
- Regional Centre of Advanced Technologies and Materials, Palacký University Olomouc, Šlechtitelů 27, 783 71, Olomouc, Czech Republic
| | - Manoj B Gawande
- Regional Centre of Advanced Technologies and Materials, Palacký University Olomouc, Šlechtitelů 27, 783 71, Olomouc, Czech Republic
- Institute of Chemical Technology, Mumbai-Marathwada Campus, Jalna, Maharashtra, 431213, India
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14
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Semerád J, Moeder M, Filip J, Pivokonský M, Filipová A, Cajthaml T. Oxidative stress in microbes after exposure to iron nanoparticles: analysis of aldehydes as oxidative damage products of lipids and proteins. Environ Sci Pollut Res Int 2019; 26:33670-33682. [PMID: 31591687 DOI: 10.1007/s11356-019-06370-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 08/29/2019] [Indexed: 06/10/2023]
Abstract
Due to their enhanced reactivity, metal and metal-oxide nanoscale zero-valent iron (nZVI) nanomaterials have been introduced into remediation practice. To ensure that environmental applications of nanomaterials are safe, their possible toxic effects should be described. However, there is still a lack of suitable toxicity tests that address the specific mode of action of nanoparticles, especially for nZVI. This contribution presents a novel approach for monitoring one of the most discussed adverse effects of nanoparticles, i.e., oxidative stress (OS). We optimized and developed an assay based on headspace-SPME-GC-MS analysis that enables the direct determination of volatile oxidative damage products (aldehydes) of lipids and proteins in microbial cultures after exposure to commercial types of nZVI. The method employs PDMS/DVB SPME fibers and pentafluorobenzyl derivatization, and the protocol was successfully tested using representatives of bacteria, fungi, and algae. Six aldehydes, namely, formaldehyde, acrolein, methional, benzaldehyde, glyoxal, and methylglyoxal, were detected in the cultures, and all of them exhibited dose-dependent sigmoidal responses. The presence of methional, which was detected in all cultures except those including an algal strain, documents that nZVI also caused oxidative damage to proteins in addition to lipids. The most sensitive toward nZVI exposure in terms of aldehyde production was the yeast strain Saccharomyces cerevisiae, which had an EC50 value of 0.08 g/L nZVI. To the best of our knowledge, this paper is the first to document the production of aldehydes resulting from lipids and proteins as a result of OS in microorganisms from different kingdoms after exposure to iron nanoparticles.
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Affiliation(s)
- Jaroslav Semerád
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, CZ-142 20, Prague 4, Czech Republic
- Institute for Environmental Studies, Faculty of Science, Charles University, Benátská 2, CZ-128 01, Prague 2, Czech Republic
| | - Monika Moeder
- Department of Analytical Chemistry, Helmholtz-Center for Environmental Research - UFZ, Permoserstr. 15, 04318, Leipzig, Germany
| | - Jan Filip
- Regional Centre of Advanced Technologies and Materials, Palacký University, Šlechtitelů 27, CZ-783 71, Olomouc, Czech Republic
| | - Martin Pivokonský
- Institute of Hydrodynamics of the Czech Academy of Sciences, Pod Patankou 30/5, CZ-166 12, Prague 6, Czech Republic
| | - Alena Filipová
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, CZ-142 20, Prague 4, Czech Republic
- Institute for Environmental Studies, Faculty of Science, Charles University, Benátská 2, CZ-128 01, Prague 2, Czech Republic
| | - Tomáš Cajthaml
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, CZ-142 20, Prague 4, Czech Republic.
- Institute for Environmental Studies, Faculty of Science, Charles University, Benátská 2, CZ-128 01, Prague 2, Czech Republic.
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15
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Mackuľak T, Grabic R, Špalková V, Belišová N, Škulcová A, Slavík O, Horký P, Gál M, Filip J, Híveš J, Vojs M, Staňová AV, Medveďová A, Marton M, Birošová L. Hospital wastewaters treatment: Fenton reaction vs. BDDE vs. ferrate(VI). Environ Sci Pollut Res Int 2019; 26:31812-31821. [PMID: 31487008 DOI: 10.1007/s11356-019-06290-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 08/26/2019] [Indexed: 05/09/2023]
Abstract
Various types of micropollutants, e.g., pharmaceuticals and their metabolites and resistant strains of pathogenic microorganisms, are usually found in hospital wastewaters. The aim of this paper was to study the presence of 74 frequently used pharmaceuticals, legal and illegal drugs, and antibiotic-resistant bacteria in 5 hospital wastewaters in Slovakia and Czechia and to compare the efficiency of several advanced oxidations processes (AOPs) for sanitation and treatment of such highly polluted wastewaters. The occurrence of micropollutants and antibiotic-resistant bacteria was investigated by in-line SPE-LC-MS/MS technique and cultivation on antibiotic and antibiotic-free selective diagnostic media, respectively. The highest maximum concentrations were found for cotinine (6700 ng/L), bisoprolol (5200 ng/L), metoprolol (2600 ng/L), tramadol (2400 ng/L), sulfamethoxazole (1500 ng/L), and ranitidine (1400 ng/L). In the second part of the study, different advanced oxidation processes, modified Fenton reaction, ferrate(VI), and oxidation by boron-doped diamond electrode were tested in order to eliminate the abovementioned pollutants. Obtained results indicate that the modified Fenton reaction and application of boron-doped diamond electrode were able to eliminate almost the whole spectrum of selected micropollutants with efficiency higher than 90%. All studied methods achieved complete removal of the antibiotic-resistant bacteria present in hospital wastewaters.
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Affiliation(s)
- Tomáš Mackuľak
- Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia
| | - Roman Grabic
- South Bohemian Research Centre of Aquaculture and Biodiversity of Hydrocenoses, Faculty of Fisheries and Protection of Waters, University of South Bohemia in Ceske Budejovice, Zatisi 728/II, CZ-389 01, Vodnany, Czech Republic
| | - Viera Špalková
- Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia
| | - Noemi Belišová
- Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia
| | - Andrea Škulcová
- Department of Zoology and Fisheries, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcka 129, CZ-165 00, Praha 6-Suchdol, Czech Republic.
- Department of Wood, Pulp and Paper, Institute of Natural and Synthetic Polymers, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia.
| | - Ondřej Slavík
- Department of Zoology and Fisheries, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcka 129, CZ-165 00, Praha 6-Suchdol, Czech Republic
| | - Pavel Horký
- Department of Zoology and Fisheries, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcka 129, CZ-165 00, Praha 6-Suchdol, Czech Republic
| | - Miroslav Gál
- Department of Inorganic Technology, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia
| | - Jan Filip
- Regional Centre of Advanced Technologies and Materials, Šlechtitelů 27, CZ-783 71, Olomouc, Czech Republic
| | - Ján Híveš
- Department of Inorganic Technology, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia
| | - Marian Vojs
- Institute of Electronics and Photonics, Faculty of Electrical Engineering and Information Technology, Slovak University of Technology in Bratislava, Ilkovičova 3, SK-812 19, Bratislava, Slovakia
| | - Andrea Vojs Staňová
- Department of Analytical Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynská dolina Ilkovičova 6, SK-842 15, Bratislava, Slovakia
| | - Alžbeta Medveďová
- Institute of Food Science and Nutrition, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia
| | - Marián Marton
- Institute of Electronics and Photonics, Faculty of Electrical Engineering and Information Technology, Slovak University of Technology in Bratislava, Ilkovičova 3, SK-812 19, Bratislava, Slovakia
| | - Lucia Birošová
- Institute of Food Science and Nutrition, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia
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16
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Černík M, Nosek J, Filip J, Hrabal J, Elliott DW, Zbořil R. Electric-field enhanced reactivity and migration of iron nanoparticles with implications for groundwater treatment technologies: Proof of concept. Water Res 2019; 154:361-369. [PMID: 30822596 DOI: 10.1016/j.watres.2019.01.058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 01/27/2019] [Accepted: 01/30/2019] [Indexed: 06/09/2023]
Abstract
The extensive use of nanoscale zero-valent iron (nZVI) particles for groundwater treatment has been limited, in part, because of their non-selective reactivity and low mobility in aquatic environments. Herein, we describe and explore progressive changes in the reactivity and migration of aqueous dispersed nZVI particles under an applied DC electric field. Due to the applied electric field with an intensity of about 1 V cm-1, the solution oxidation-reduction potential (ORP) remained as low as -200 mV for at least 32 days, which was in agreement with the persistence of the reduced iron species (mainly Fe(II)), and led to substantially prolonged reactivity of the original nZVI. The treatment of chlorinated ethenes (DCE > PCE > TCE) was markedly faster, individual CHC compounds were eliminated with the same kinetics and no lesser-chlorinated intermediates were accumulated, following thus the direct dechlorination scheme. When nZVI-dispersion flows towards the anode through vertical laboratory columns filled with quartz sand, significant enhancement of nZVI migration was recorded because of lower extent of nanoparticle aggregation and increased repulsion forces between the nanoparticles and the surface of silica dioxide. The results of this study have significant consequences for groundwater remediation, mainly for the treatment of slowly degradable DCE in real CHC contaminated groundwater, where it could improve the reactivity, the longevity and the migration of nZVI particles.
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Affiliation(s)
- Miroslav Černík
- Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentská 2, CZ-46117, Liberec, Czech Republic
| | - Jaroslav Nosek
- Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentská 2, CZ-46117, Liberec, Czech Republic
| | - Jan Filip
- Regional Centre of Advanced Technologies and Materials, Palacký University Olomouc, Šlechtitelů 27, CZ-78371, Olomouc, Czech Republic.
| | - Jaroslav Hrabal
- MEGA a.s., Pod Vinicí 87, CZ-47127, Stráž pod Ralskem, Czech Republic
| | | | - Radek Zbořil
- Regional Centre of Advanced Technologies and Materials, Palacký University Olomouc, Šlechtitelů 27, CZ-78371, Olomouc, Czech Republic
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Prudilová B, Otyepková E, Fanfrlík J, Hnyk D, Holub J, Petr M, Filip J, Čépe K, Lazar P, Otyepka M. Surface termination of MgB 2 unveiled by a combination of adsorption experiments and theoretical calculations. Phys Chem Chem Phys 2019; 21:7313-7320. [PMID: 30895998 DOI: 10.1039/c9cp00771g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Superconductivity in polycrystalline and thin-film MgB2 is strongly affected by the termination of its surface, but a reliable determination of the surface termination is still a challenging task of surface chemistry. Here, the surface properties of superconducting MgB2 were investigated using a combination of inverse gas chromatography and van der Waals corrected density functional theory calculations. The dispersive surface energy was measured as a function of the surface coverage and its value (58 mJ m-2 to 48 mJ m-2) was verified by high-level non-local EXX + RPA calculations, which predicted that the dispersive contribution to the cleavage energy was 56 mJ m-2. The isosteric adsorption enthalpies of cyclohexane, dioxane, acetone and acetonitrile molecules were measured on an MgB2 sample and compared to the DFT calculated enthalpies for the Mg-terminated MgB2, B-terminated MgB2 and MgO(001) surfaces. The close agreement between theory and experiment for the Mg-terminated surface suggested that the magnesium termination is the dominant surface phase of MgB2. Thus, combining inverse gas chromatography experiments with theoretical calculations may provide information about the surface termination.
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Affiliation(s)
- Barbora Prudilová
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacký University Olomouc, tř. 17. listopadu 12, 771 46 Olomouc, Czech Republic.
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18
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Semerád J, Čvančarová M, Filip J, Kašlík J, Zlotá J, Soukupová J, Cajthaml T. Novel assay for the toxicity evaluation of nanoscale zero-valent iron and derived nanomaterials based on lipid peroxidation in bacterial species. Chemosphere 2018; 213:568-577. [PMID: 30268053 DOI: 10.1016/j.chemosphere.2018.09.029] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 08/05/2018] [Accepted: 09/04/2018] [Indexed: 06/08/2023]
Abstract
Nano-scale zero-valent iron (nZVI) began attracting research attention in remediation practice in recent decades as a prospective nanomaterial applicable to various contaminated matrices. Despite concerns about the negative effects of nanomaterials on ecosystems, the number of reliable toxicity tests is limited. We have developed a test based on the evaluation of oxidative stress (OS). The test employed the analysis of a typical OS marker (malondialdehyde, MDA), after exposure of six bacterial strains to the tested nanomaterial. We also attempted to use other OS and cell membrane damage assays, including the determination of glutathione and lactate dehydrogenase, respectively. However, we found that the components of these assays interfered with nZVI; therefore, these tests were not applicable. The MDA assay was tested using nZVI and three newly engineered oxide shell nZVI materials with different oxide thicknesses. Six different bacterial species were employed, and the results showed that the test was fully applicable for the concentrations of nanomaterials used in remediation practice (0.1-10 g/L). MDA was produced in a dose-response manner, and the bacteria showed a similar response toward pure pyrophoric nZVI, reaching EC50 values of 0.3-1.1 g/L. We observed different responses in the absolute production of MDA; however, the MDA concentrations were correlated with the cell membrane surfaces of the individual strains (R > 0.75; P < 0.09). Additionally, the EC50 values correlated with the thickness of the oxide shells (except for Escherichia coli: R > 0.95; P < 0.05), documenting the reliability of the assay, where reactivity was confirmed to be an important factor for reactive oxygen species production.
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Affiliation(s)
- Jaroslav Semerád
- Institute of Microbiology, Czech Academy of Sciences, v.v.i., Vídeňská 1083, CZ-142 20, Prague 4, Czech Republic; Institute for Environmental Studies, Faculty of Science, Charles University, Benátská 2, CZ-128 01, Prague 2, Czech Republic
| | - Monika Čvančarová
- Institute of Microbiology, Czech Academy of Sciences, v.v.i., Vídeňská 1083, CZ-142 20, Prague 4, Czech Republic
| | - Jan Filip
- Regional Centre of Advanced Technologies and Materials, Faculty of Science, Palacký University, 17. listopadu 1192/12, CZ-771 46, Olomouc, Czech Republic
| | - Josef Kašlík
- Regional Centre of Advanced Technologies and Materials, Faculty of Science, Palacký University, 17. listopadu 1192/12, CZ-771 46, Olomouc, Czech Republic
| | - Jana Zlotá
- Institute of Microbiology, Czech Academy of Sciences, v.v.i., Vídeňská 1083, CZ-142 20, Prague 4, Czech Republic
| | - Jana Soukupová
- Regional Centre of Advanced Technologies and Materials, Faculty of Science, Palacký University, 17. listopadu 1192/12, CZ-771 46, Olomouc, Czech Republic
| | - Tomáš Cajthaml
- Institute of Microbiology, Czech Academy of Sciences, v.v.i., Vídeňská 1083, CZ-142 20, Prague 4, Czech Republic; Institute for Environmental Studies, Faculty of Science, Charles University, Benátská 2, CZ-128 01, Prague 2, Czech Republic.
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Sracek O, Kříbek B, Mihaljevič M, Ettler V, Vaněk A, Penížek V, Filip J, Veselovský F, Nyambe I. The impact of wetland on neutral mine drainage from mining wastes at Luanshya in the Zambian Copperbelt in the framework of climate change. Environ Sci Pollut Res Int 2018; 25:28961-28972. [PMID: 30109679 DOI: 10.1007/s11356-018-2929-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Accepted: 08/06/2018] [Indexed: 06/08/2023]
Abstract
The impact of a natural wetland ("dambo" in Zambia) on neutral mine drainage at Luanshya in the Zambian Copperbelt has been investigated during an intermediate discharge period (July) using a multi-method characterization of solid phase samples, sequential extraction analysis, X-ray diffraction, Mössbauer spectroscopy, and scanning electron microscopy combined with water analyses, isotopic analyses, and geochemical modeling. In the wetland, the principal identified solid phases in sediments were carbonates, gypsum, and ferric oxyhydroxides. A significant portion of the ochres was present as insoluble hematite. Mine drainage pH values decrease, and log [Formula: see text] values increase after inflow of water into the wetland; dissolved and suspended concentrations of Fe, Mn, Cu, and Co also decrease. Based on speciation calculations, there is no precipitation of secondary Cu and Co minerals in the period of sampling, but it can occur later in dry period when the flow rate is reduced. Concentrations of sulfate decrease, and values of δ34S(SO4) in the wetland increase in parallel, suggesting sulfate reduction is occurring. In more advanced dry period, the discharge in mine drainage stream is probably much lower and water can reach supersaturation with respect to minerals such as gypsum, which has been found in sediments. Wetlands have a positive impact on mine drainage water quality due to the removal of metals by adsorption, co-precipitation, and filtration of colloids. However, there can also be a rebound of contamination by seepage inflow downstream from the wetland. Ongoing climate change with extreme hydrologic events may enhance differences between dry and rainy seasons with resulting faster mobilization of contaminants.
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Affiliation(s)
- Ondra Sracek
- Department of Geology, Faculty of Science, Palacký University, 17. listopadu 12, 771 46, Olomouc, Czech Republic.
| | - Bohdan Kříbek
- Czech Geological Survey, Klárov 3, 118 21, Prague, Czech Republic
| | - Martin Mihaljevič
- Institute of Geochemistry, Mineralogy and Mineral Resources, Faculty of Science, Charles University, Albertov 6, 128 43, Prague, Czech Republic
| | - Vojtěch Ettler
- Institute of Geochemistry, Mineralogy and Mineral Resources, Faculty of Science, Charles University, Albertov 6, 128 43, Prague, Czech Republic
| | - Aleš Vaněk
- Department of Soil Science and Soil Protection, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, 165 00, Prague 6, Czech Republic
| | - Vít Penížek
- Department of Soil Science and Soil Protection, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, 165 00, Prague 6, Czech Republic
| | - Jan Filip
- Regional Centre of Advanced Technologies and Materials, Palacky University, Šlechtitelů 27, 78371, Olomouc, Czech Republic
| | | | - Imasiku Nyambe
- Department of Geology, School of Mines, University of Zambia, P.O. Box 32 379, Lusaka, Zambia
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Kolařík J, Prucek R, Tuček J, Filip J, Sharma VK, Zbořil R. Impact of inorganic ions and natural organic matter on arsenates removal by ferrate(VI): Understanding a complex effect of phosphates ions. Water Res 2018; 141:357-365. [PMID: 29804022 DOI: 10.1016/j.watres.2018.05.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Revised: 04/27/2018] [Accepted: 05/13/2018] [Indexed: 06/08/2023]
Abstract
Arsenic compounds are carcinogenic to humans and are typically removed from contaminated water using various sorbents. The ionic composition plays a significant role in arsenate removal efficiency during the process of water remediation. Here, we quantify the effects of natural ions (chlorides, nitrates, carbonates, sulfates, and phosphates) and humic acid on the removal of arsenates by ferrate(VI) at pH = 6.6. In the experiments, the initial concentration of arsenates was 10 mg L-1 (as As) and the concentrations of ions varied in the range from 5 to 100 mg L-1 of element in ionic form and humic acid. The achieved results show that only phosphate ions had principle influence on the efficiency of arsenate removal by ferrate(VI). The effect of phosphates was elucidated by applying transmission electron microscopy, energy-dispersive X-ray spectroscopy, and low temperature in-field 57Fe Mössbauer spectroscopy to solid samples, prepared under different weight ratios of ferrate(VI), arsenates, and phosphates. These results show three crucial effects of phosphates on the arsenate removal mechanisms. At low P:As weight ratio (up to 1:1), the incorporation of arsenate ions into the crystalline structure of γ-Fe2O3/γ-FeOOH nanoparticles was found to be suppressed by the presence of phosphates. Thus, arsenates were mainly adsorbed onto the surface of γ-Fe2O3/γ-FeOOH nanoparticles. Further increase in the P:As weight ratio (more than 1:1) resulted in the competition between arsenates and phosphates sorption. With the increased concentration of phosphate ions, the number of arsenates on the surface of γ-Fe2O3/γ-FeOOH nanoparticles was reduced. Finally, the complexation of iron(III) ions with phosphate ions occurred, leading to a decrease in the arsenates removal efficiency, which resulted from a lower content of precipitated γ-Fe2O3/γ-FeOOH nanoparticles. All these aspects need to be considered prior to application of ferrate(VI) for arsenates removal in real natural waters.
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Affiliation(s)
- Jan Kolařík
- Regional Centre of Advanced Technologies and Materials, Departments of Physical Chemistry and Experimental Physics, Faculty of Science, Palacký University in Olomouc, 17. listopadu 1192/12, 771 46 Olomouc, Czech Republic
| | - Robert Prucek
- Regional Centre of Advanced Technologies and Materials, Departments of Physical Chemistry and Experimental Physics, Faculty of Science, Palacký University in Olomouc, 17. listopadu 1192/12, 771 46 Olomouc, Czech Republic.
| | - Jiří Tuček
- Regional Centre of Advanced Technologies and Materials, Departments of Physical Chemistry and Experimental Physics, Faculty of Science, Palacký University in Olomouc, 17. listopadu 1192/12, 771 46 Olomouc, Czech Republic
| | - Jan Filip
- Regional Centre of Advanced Technologies and Materials, Departments of Physical Chemistry and Experimental Physics, Faculty of Science, Palacký University in Olomouc, 17. listopadu 1192/12, 771 46 Olomouc, Czech Republic
| | - Virender K Sharma
- Regional Centre of Advanced Technologies and Materials, Departments of Physical Chemistry and Experimental Physics, Faculty of Science, Palacký University in Olomouc, 17. listopadu 1192/12, 771 46 Olomouc, Czech Republic; Program for the Environment and Sustainability, Department of Environmental and Occupational Health, School of Rural Public Health, Texas A&M University, 1266 TAMU, College Station, TX 77843, USA
| | - Radek Zbořil
- Regional Centre of Advanced Technologies and Materials, Departments of Physical Chemistry and Experimental Physics, Faculty of Science, Palacký University in Olomouc, 17. listopadu 1192/12, 771 46 Olomouc, Czech Republic.
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Dousova B, Lhotka M, Filip J, Kolousek D. Removal of arsenate and antimonate by acid-treated Fe-rich clays. J Hazard Mater 2018; 357:440-448. [PMID: 29929097 DOI: 10.1016/j.jhazmat.2018.06.028] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 05/25/2018] [Accepted: 06/11/2018] [Indexed: 06/08/2023]
Abstract
Iron impurities in clays degrade the quality in many aspects, but available Fe oxides can significantly improve adsorption affinity of clays to anionic particles. Two natural Fe-rich clays (kaolin and bentonite) were treated in 0.5 M HCl (pH = 1.1) and 0.15 M (COOH)2 (pH = 1.2), and then used to adsorb AsV/SbV oxyanions from model solutions. After acid leaching, the equilibrium sorption capacities (qmax) increased from 2.3 × 10-3 to 39.2 × 10-3 mmol g-1 for AsV and from 2.4 × 10-3 to 40.1 × 10-3 mmol g-1 for SbV, more than doubling the adsorption yields (≈95%) of both oxyanions. Leaching in 0.5 M HCl enhanced both AsV and SbV adsorption, whereas leaching in 0.15 M (COOH)2 mainly improved the adsorption of SbV. Bentonite, which contained fewer crystalline forms of Fe, exhibited better sorption properties for both oxyanions. The leaching of Fe followed first-order kinetics, whereas the adsorption of AsV/SbV followed second-order kinetics. Acid leaching of Fe-rich clays can be used for the preparation of highly selective anionactive sorbents.
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Affiliation(s)
- Barbora Dousova
- University of Chemistry and Technology Prague, Technicka 5, 166 28, Prague 6, Czech Republic.
| | - Miloslav Lhotka
- University of Chemistry and Technology Prague, Technicka 5, 166 28, Prague 6, Czech Republic
| | - Jan Filip
- Regional Centre of Advanced Technologies and Materials, Faculty of Science, Palacky University in Olomouc, 17. Listopadu 1192/12, 771 46, Olomouc, Czech Republic
| | - David Kolousek
- University of Chemistry and Technology Prague, Technicka 5, 166 28, Prague 6, Czech Republic
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22
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Sracek O, Kříbek B, Mihaljevič M, Ettler V, Vaněk A, Penížek V, Filip J, Veselovský F, Bagai ZB. Geochemistry and pH control of seepage from Ni-Cu rich mine tailings at Selebi Phikwe, Botswana. Environ Monit Assess 2018; 190:482. [PMID: 30039179 DOI: 10.1007/s10661-018-6851-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 07/03/2018] [Indexed: 06/08/2023]
Abstract
Acid mine drainage from mine tailings at Selebi Phikwe, eastern Botswana, has been investigated using a combination of total decomposition, sequential extraction, X-ray diffraction, Mössbauer spectroscopy, and SEM analyses of solid phase samples, water analyses, isotopic analyses, and geochemical modeling. The principal ferric phases in the seepage stream sediments are jarosite and goethite, which incorporate Ni and Cu. The Mössbauer spectroscopy (MS) indicated exclusively 3+ oxidation state of iron with typical features of ferric hydroxides/sulfates. A fraction of dissolved sulfate is also sequestered in gypsum which precipitates further downstream. Significant portions of Fe, Ni, and Cu are transported in suspension. Values of pH decreased downstream due to H+ generated by the precipitation of jarosite. Values of δ2H and δ18O indicate evaporation of pore water in the mine tailings before seepage. Values of δ34S(SO4) are consistent with the oxidation of sulfides, but sample from the seepage face is affected by dissolution of gypsum. No minerals of Ni and Cu were detected and the principal attenuation processes seem to be adsorption and co-precipitation with jarosite. Higher contents of Cu are sequestered in solid phases compared to Ni, in spite of much higher dissolved Ni concentrations. Based on the speciation calculations, seepage water is undersaturated with respect to all Ni and Cu phases and adsorption and co-precipitation with jarosite seems to be the principal attenuation processes. Direct geochemical modeling was able to reproduce downstream pH trends, thus confirming the precipitation of jarosite as the principal pH-controlling process.
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Affiliation(s)
- O Sracek
- Department of Geology, Faculty of Science, Palacky University, 17. listopadu 12, 771 46, Olomouc, Czech Republic.
| | - B Kříbek
- Czech Geological Survey, Klárov 3, 118 21, Prague, Czech Republic
| | - M Mihaljevič
- Institute of Geochemistry, Mineralogy and Mineral Resources, Faculty of Science, Charles University, Albertov 6, 128 43, Prague, Czech Republic
| | - V Ettler
- Institute of Geochemistry, Mineralogy and Mineral Resources, Faculty of Science, Charles University, Albertov 6, 128 43, Prague, Czech Republic
| | - A Vaněk
- Department of Soil Science and Soil Protection, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 1296, 165 00, Prague, Czech Republic
| | - V Penížek
- Department of Soil Science and Soil Protection, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 1296, 165 00, Prague, Czech Republic
| | - J Filip
- Regional Centre of Advanced Technologies and Materials, Palacky University, Šlechtitelů 27, 78371, Olomouc, Czech Republic
| | - F Veselovský
- Czech Geological Survey, Klárov 3, 118 21, Prague, Czech Republic
| | - Z B Bagai
- Department of Geology, Faculty of Science, University of Botswana, 4775 Notwane Rd., Gaborone, Botswana
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Su Y, Jassby D, Song S, Zhou X, Zhao H, Filip J, Petala E, Zhang Y. Enhanced Oxidative and Adsorptive Removal of Diclofenac in Heterogeneous Fenton-like Reaction with Sulfide Modified Nanoscale Zerovalent Iron. Environ Sci Technol 2018; 52:6466-6475. [PMID: 29767520 DOI: 10.1021/acs.est.8b00231] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Sulfidation of nanoscale zerovalent iron (nZVI) has shown some fundamental improvements on reactivity and selectivity toward pollutants in dissolved-oxygen (DO)-stimulated Fenton-like reaction systems (DO/S-nZVI system). However, the pristine microstructure of sulfide-modified nanoscale zerovalent iron (S-nZVI) remains uncovered. In addition, the relationship between pollutant removal and the oxidation of the S-nZVI is largely unknown. The present study confirms that sulfidation not only imparts sulfide and sulfate groups onto the surface of the nanoparticle (both on the oxide shell and on flake-like structures) but also introduces sulfur into the Fe(0) core region. Sulfidation greatly inhibits the four-electron transfer pathway between Fe(0) and oxygen but facilitates the electron transfer from Fe(0) to surface-bound Fe(III) and consecutive single-electron transfer for the generation of H2O2 and hydroxyl radical. In the DO/S-nZVI system, slight sulfidation (S/Fe molar ratio = 0.1) is able to nearly double the oxidative removal efficacy of diclofenac (DCF) (from 17.8 to 34.2%), whereas moderate degree of sulfidation (S/Fe molar ratio = 0.3) significantly enhances both oxidation and adsorption of DCF. Furthermore, on the basis of the oxidation model of S-nZVI, the DCF removal process can be divided into two steps, which are well modeled by parabolic and logarithmic law separately. This study bridges the knowledge gap between pollutant removal and the oxidation process of chemically modified iron-based nanomaterials.
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Affiliation(s)
- Yiming Su
- State Key Laboratory of Pollution Control and Resource Reuse , Tongji University , Shanghai 200092 , China
- Department of Civil and Environmental Engineering , University of California , Los Angeles , California 90095 , United States
| | - David Jassby
- Department of Civil and Environmental Engineering , University of California , Los Angeles , California 90095 , United States
| | - Shikun Song
- State Key Laboratory of Pollution Control and Resource Reuse , Tongji University , Shanghai 200092 , China
| | - Xuefei Zhou
- State Key Laboratory of Pollution Control and Resource Reuse , Tongji University , Shanghai 200092 , China
- Key Laboratory of Yangtze River Water Environment, Ministry of Education , Tongji University , Shanghai 200092 , China
| | - Hongying Zhao
- School of Chemical Science and Engineering , Tongji University , Shanghai 200092 , China
| | - Jan Filip
- Regional Centre of Advanced Technologies and Materials , Palacký University Olomouc , Šlechtitelů 27 , 783 71 Olomouc Czech Republic
| | - Eleni Petala
- Regional Centre of Advanced Technologies and Materials , Palacký University Olomouc , Šlechtitelů 27 , 783 71 Olomouc Czech Republic
| | - Yalei Zhang
- State Key Laboratory of Pollution Control and Resource Reuse , Tongji University , Shanghai 200092 , China
- Key Laboratory of Yangtze River Water Environment, Ministry of Education , Tongji University , Shanghai 200092 , China
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Fan D, Lan Y, Tratnyek PG, Johnson RL, Filip J, O'Carroll DM, Nunez Garcia A, Agrawal A. Sulfidation of Iron-Based Materials: A Review of Processes and Implications for Water Treatment and Remediation. Environ Sci Technol 2017; 51:13070-13085. [PMID: 29035566 DOI: 10.1021/acs.est.7b04177] [Citation(s) in RCA: 184] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Iron-based materials used in water treatment and groundwater remediation-especially micro- and nanosized zerovalent iron (nZVI)-can be more effective when modified with lower-valent forms of sulfur (i.e., "sulfidated"). Controlled sulfidation for this purpose (using sulfide, dithionite, etc.) is the main topic of this review, but insights are derived by comparison with related and comparatively well-characterized processes such as corrosion of iron in sulfidic waters and abiotic natural attenuation by iron sulfide minerals. Material characterization shows that varying sulfidation protocols (e.g., concerted or sequential) and key operational variables (e.g., S/Fe ratio and sulfidation duration) result in materials with structures and morphologies ranging from core-shell to multiphase. A meta-analysis of available kinetic data for dechlorination under anoxic conditions, shows that sulfidation usually increases dechlorination rates, and simultaneously hydrogen production is suppressed. Therefore, sulfidation can greatly improve the efficiency of utilization of reducing equivalents for contaminant removal. This benefit is most likely due to inhibited corrosion as a result of sulfidation. Sulfidation may also favor desirable pathways of contaminant removal, such as (i) dechlorination by reductive elimination rather than hydrogenolysis and (ii) sequestration of metals as sulfides that could be resistant to reoxidation. Under oxic conditions, sulfidation is shown to enhance heterogeneous catalytic oxidation of contaminants. These net effects of sulfidation on contaminant removal by iron-based materials may substantially improve their practical utility for water treatment and remediation of contaminated groundwater.
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Affiliation(s)
- Dimin Fan
- Oak Ridge Institute for Science and Education (ORISE) Fellow, Office of Superfund Remediation and Technology Innovation, U.S. Environmental Protection Agency, 2777 Crystal Drive, Arlington, Virginia 22202, United States
| | - Ying Lan
- OHSU-PSU School of Public Health, Oregon Health & Science University , 3181 SW Sam Jackson Park Road, Portland, Oregon 97239, United States
| | - Paul G Tratnyek
- OHSU-PSU School of Public Health, Oregon Health & Science University , 3181 SW Sam Jackson Park Road, Portland, Oregon 97239, United States
| | - Richard L Johnson
- OHSU-PSU School of Public Health, Oregon Health & Science University , 3181 SW Sam Jackson Park Road, Portland, Oregon 97239, United States
| | - Jan Filip
- Regional Centre of Advanced Technologies and Materials, Palacký University Olomouc , Šlechtitelů 27, CZ-78371 Olomouc, Czech Republic
| | - Denis M O'Carroll
- School of Civil and Environmental Engineering, Connected Water Initiative, University of New South Wales , Manly Vale, New South Wales 2093, Australia
| | - Ariel Nunez Garcia
- Department of Civil and Environmental Engineering, Western University , 1151 Richmond St., London, Ontario Canada
| | - Abinash Agrawal
- Department of Earth and Environmental Sciences, Wright State University, Wright State University , 3640 Colonel Glenn Highway, Dayton, Ohio 45435, United States
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Ševců A, El-Temsah YS, Filip J, Joner EJ, Bobčíková K, Černík M. Zero-valent iron particles for PCB degradation and an evaluation of their effects on bacteria, plants, and soil organisms. Environ Sci Pollut Res Int 2017; 24:21191-21202. [PMID: 28733821 DOI: 10.1007/s11356-017-9699-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Accepted: 07/04/2017] [Indexed: 06/07/2023]
Abstract
Two types of nano-scale zero-valent iron (nZVI-B prepared by borohydride reduction and nZVI-T produced by thermal reduction of iron oxide nanoparticles in H2) and a micro-scale ZVI (mZVI) were compared for PCB degradation efficiency in water and soil. In addition, the ecotoxicity of nZVI-B and nZVI-T particles in treated water and soil was evaluated on bacteria, plants, earthworms, and ostracods. All types of nZVI and mZVI were highly efficient in degradation of PCBs in water, but had little degradation effect on PCBs in soil. Although nZVI-B had a significant negative impact on the organisms tested, treatment with nZVI-T showed no negative effect, probably due to surface passivation through controlled oxidation of the nanoparticles.
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Affiliation(s)
- Alena Ševců
- Institute for Nanomaterials, Advanced Technologies and Innovations, Technical University of Liberec, Studentská 2, 46117, Liberec, Czech Republic.
| | - Yehia S El-Temsah
- Norwegian Institute for Bioecomomy Research, Environment and Climate Department, Høgskoleveien 7, 1430, Ås, Norway
- Genøk - Centre for Biosafety, Postboks 6418, 9294, Tromsø, Norway
| | - Jan Filip
- Regional Centre of Advanced Technologies and Materials, Palacký University, Šlechtitelů 27, 78371, Olomouc, Czech Republic
| | - Erik J Joner
- Norwegian Institute for Bioecomomy Research, Environment and Climate Department, Høgskoleveien 7, 1430, Ås, Norway
| | - Kateřina Bobčíková
- Institute for Nanomaterials, Advanced Technologies and Innovations, Technical University of Liberec, Studentská 2, 46117, Liberec, Czech Republic
| | - Miroslav Černík
- Institute for Nanomaterials, Advanced Technologies and Innovations, Technical University of Liberec, Studentská 2, 46117, Liberec, Czech Republic.
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Hudcová B, Veselská V, Filip J, Číhalová S, Komárek M. Sorption mechanisms of arsenate on Mg-Fe layered double hydroxides: A combination of adsorption modeling and solid state analysis. Chemosphere 2017; 168:539-548. [PMID: 27839879 DOI: 10.1016/j.chemosphere.2016.11.031] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 10/27/2016] [Accepted: 11/05/2016] [Indexed: 06/06/2023]
Abstract
Layered double hydroxides have been proposed as effective sorbents for As(V), but studies investigating adsorption mechanisms usually lack a comprehensive mechanistic/modeling approach. In this work, we propose coupling surface complexation modeling with various spectroscopic techniques. To this end, a series of batch experiments at different pH values were performed. Kinetic data were well fitted by a pseudo-second order kinetic model, and the equilibrium data were fitted by the Freundlich model. Moreover, the pH-dependent As(V) sorption data were satisfactorily fitted by a diffuse layer model, which described the formation of >SOAsO3H- monodentate and >(SO)2AsO2- bidentate inner-sphere complexes (">S" represents a crystallographically-bound group on the surface). Additionally, XPS analyses confirmed the adsorption mechanisms. The sorption mechanisms were affected by anion exchange, which was responsible for the formation of outer sphere complexes, as identified by XRD and FTIR analyses. Furthermore, a homogenous distribution of As(V) was determined by HR-TEM with elemental mapping. Using low-temperature Mössbauer spectroscopy on isotope 57Fe, a slight shift of the hyperfine parameters towards higher values following As(V) sorption was measured, indicating a higher degree of structural disorder. In general, mechanistic adsorption modeling coupled with solid state analyses presents a powerful approach for investigating the adsorption mechanism of As(V) on Mg-Fe LDH or other sorbents.
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Affiliation(s)
- Barbora Hudcová
- Department of Environmental Geosciences, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, Prague 6 - Suchdol, 165 21, Czech Republic
| | - Veronika Veselská
- Department of Environmental Geosciences, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, Prague 6 - Suchdol, 165 21, Czech Republic
| | - Jan Filip
- Regional Centre of Advanced Technologies and Materials, Departments of Physical Chemistry and Experimental Physics, Faculty of Science, Palacký University in Olomouc, Šlechtitelů 27, 783 71, Olomouc, Czech Republic
| | - Sylva Číhalová
- Department of Environmental Geosciences, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, Prague 6 - Suchdol, 165 21, Czech Republic
| | - Michael Komárek
- Department of Environmental Geosciences, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, Prague 6 - Suchdol, 165 21, Czech Republic.
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Kralchevska RP, Prucek R, Kolařík J, Tuček J, Machala L, Filip J, Sharma VK, Zbořil R. Remarkable efficiency of phosphate removal: Ferrate(VI)-induced in situ sorption on core-shell nanoparticles. Water Res 2016; 103:83-91. [PMID: 27438903 DOI: 10.1016/j.watres.2016.07.021] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 07/04/2016] [Accepted: 07/10/2016] [Indexed: 06/06/2023]
Abstract
Despite the importance of phosphorus as a nutrient for humans and its role in ecological sustainability, its high abundance, resulting in large part from human activities, causes eutrophication that negatively affects the environment and public health. Here, we present the use of ferrate(VI) as an alternative agent for removing phosphorus from aqueous media. We address the mechanism of phosphate removal as a function of the Fe/P mass ratio and the pH value of the solution. The isoelectric point of γ-Fe2O3 nanoparticles, formed as dominant Fe(VI) decomposition products, was identified to play a crucial role in predicting their efficiency in removing of phosphates. Importantly, it was found that the removal efficiency dramatically changes if Fe(VI) is added before (ex-situ conditions) or after (in-situ conditions) the introduction of phosphates into water. Removal under in-situ conditions showed remarkable sorption capacity of 143.4 mg P per gram of ferric precipitates due to better accessibility of active surface sites on in-situ formed ferric oxides/oxyhydroxides. At pH = 6.0-7.0, complete removal of phosphates was observed at a relatively low Fe/P mass ratio (5:1). The results show that phosphates are removed from water solely by sorption on the surface of γ-Fe2O3/γ-FeOOH core/shell nanoparticles. The advantages of Fe(VI) utilization include its environmentally friendly nature, the possibility of easy separation of the final product from water by a magnetic field or by natural settling, and the capacity for successful phosphate elimination at pH values near the neutral range and at low Fe/P mass ratios.
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Affiliation(s)
- Radina P Kralchevska
- Regional Centre of Advanced Technologies and Materials, Departments of Physical Chemistry and Experimental Physics, Faculty of Science, Palacký University in Olomouc, Šlechtitelů 27, 783 71, Olomouc, Czech Republic
| | - Robert Prucek
- Regional Centre of Advanced Technologies and Materials, Departments of Physical Chemistry and Experimental Physics, Faculty of Science, Palacký University in Olomouc, Šlechtitelů 27, 783 71, Olomouc, Czech Republic
| | - Jan Kolařík
- Regional Centre of Advanced Technologies and Materials, Departments of Physical Chemistry and Experimental Physics, Faculty of Science, Palacký University in Olomouc, Šlechtitelů 27, 783 71, Olomouc, Czech Republic
| | - Jiří Tuček
- Regional Centre of Advanced Technologies and Materials, Departments of Physical Chemistry and Experimental Physics, Faculty of Science, Palacký University in Olomouc, Šlechtitelů 27, 783 71, Olomouc, Czech Republic
| | - Libor Machala
- Regional Centre of Advanced Technologies and Materials, Departments of Physical Chemistry and Experimental Physics, Faculty of Science, Palacký University in Olomouc, Šlechtitelů 27, 783 71, Olomouc, Czech Republic
| | - Jan Filip
- Regional Centre of Advanced Technologies and Materials, Departments of Physical Chemistry and Experimental Physics, Faculty of Science, Palacký University in Olomouc, Šlechtitelů 27, 783 71, Olomouc, Czech Republic
| | - Virender K Sharma
- Regional Centre of Advanced Technologies and Materials, Departments of Physical Chemistry and Experimental Physics, Faculty of Science, Palacký University in Olomouc, Šlechtitelů 27, 783 71, Olomouc, Czech Republic; Department of Environmental and Occupational Health, School of Public Health, Texas A&M University, 1266 TAMU, College Station, TX, 77843, United States
| | - Radek Zbořil
- Regional Centre of Advanced Technologies and Materials, Departments of Physical Chemistry and Experimental Physics, Faculty of Science, Palacký University in Olomouc, Šlechtitelů 27, 783 71, Olomouc, Czech Republic.
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Šafařík I, Maděrová Z, Pospíšková K, Schmidt HP, Baldíková E, Filip J, Křížek M, Malina O, Šafaříková M. Magnetically modified biochar for organic xenobiotics removal. Water Sci Technol 2016; 74:1706-1715. [PMID: 27763351 DOI: 10.2166/wst.2016.335] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Large amounts of biochar are produced worldwide for potential agricultural applications. However, this material can also be used as an efficient biosorbent for xenobiotics removal. In this work, biochar was magnetically modified using microwave-synthesized magnetic iron oxide particles. This new type of a magnetically responsive biocomposite material can be easily separated by means of strong permanent magnets. Magnetic biochar has been used as an inexpensive magnetic adsorbent for the removal of water-soluble dyes. Five dyes (malachite green, methyl green, Bismarck brown Y, acridine orange and Nile blue A) were used to study the adsorption process. The dyes adsorption could be usually described with the Langmuir isotherm. The maximum adsorption capacities reached the value 137 mg of dye per g of dried magnetically modified biochar for Bismarck brown Y. The adsorption processes followed the pseudo-second-order kinetic model and the thermodynamic studies indicated spontaneous and endothermic adsorption. Extremely simple magnetic modification of biochar resulted in the formation of a new, promising adsorbent suggested for selected xenobiotics removal.
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Affiliation(s)
- Ivo Šafařík
- Department of Nanobiotechnology, Biology Centre, ISB, ASCR, Na Sádkách 7, České Budějovice 370 05, Czech Republic E-mail: ; Regional Centre of Advanced Technologies and Materials, Palacký University, Šlechtitelů 27, Olomouc 783 71, Czech Republic; Global Change Research Institute, ASCR, Na Sádkách 7, České Budějovice 370 05, Czech Republic
| | - Zdenka Maděrová
- Global Change Research Institute, ASCR, Na Sádkách 7, České Budějovice 370 05, Czech Republic
| | - Kristýna Pospíšková
- Regional Centre of Advanced Technologies and Materials, Palacký University, Šlechtitelů 27, Olomouc 783 71, Czech Republic
| | - Hans-Peter Schmidt
- Ithaka Institute for Carbon Strategies, Ancienne Eglise 9, Arbaz CH-1974, Switzerland
| | - Eva Baldíková
- Global Change Research Institute, ASCR, Na Sádkách 7, České Budějovice 370 05, Czech Republic
| | - Jan Filip
- Regional Centre of Advanced Technologies and Materials, Palacký University, Šlechtitelů 27, Olomouc 783 71, Czech Republic
| | - Michal Křížek
- Regional Centre of Advanced Technologies and Materials, Palacký University, Šlechtitelů 27, Olomouc 783 71, Czech Republic
| | - Ondřej Malina
- Regional Centre of Advanced Technologies and Materials, Palacký University, Šlechtitelů 27, Olomouc 783 71, Czech Republic
| | - Mirka Šafaříková
- Department of Nanobiotechnology, Biology Centre, ISB, ASCR, Na Sádkách 7, České Budějovice 370 05, Czech Republic E-mail: ; Global Change Research Institute, ASCR, Na Sádkách 7, České Budějovice 370 05, Czech Republic
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Němeček J, Pokorný P, Lhotský O, Knytl V, Najmanová P, Steinová J, Černík M, Filipová A, Filip J, Cajthaml T. Combined nano-biotechnology for in-situ remediation of mixed contamination of groundwater by hexavalent chromium and chlorinated solvents. Sci Total Environ 2016; 563-564:822-834. [PMID: 26850861 DOI: 10.1016/j.scitotenv.2016.01.019] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Revised: 01/03/2016] [Accepted: 01/04/2016] [Indexed: 06/05/2023]
Abstract
The present report describes a 13month pilot remediation study that consists of a combination of Cr(VI) (4.4 to 57mg/l) geofixation and dechlorination of chlorinated ethenes (400 to 6526μg/l), achieved by the sequential use of nanoscale zerovalent iron (nZVI) particles and in situ biotic reduction supported by whey injection. The remediation process was monitored using numerous techniques, including physical-chemical analyses and molecular biology approaches which enabled both the characterization of the mechanisms involved in pollutant transformation and the description of the overall background processes of the treatment. The results revealed that nZVI was efficient toward Cr(VI) by itself and completely removed it from the groundwater (LOQ 0.05mg/l) and the subsequent application of whey resulted in a high removal of chlorinated ethenes (97 to 99%). The persistence of the reducing conditions, even after the depletion of the organic substrates, indicated a complementarity between nZVI and the whey phases in the combined technology as the subsequent application of whey phase partially assisted the microbial regeneration of the spent nZVI by promoting its reduction into Fe(II), which further supported remediation conditions at the site. Illumina sequencing and the detection of functional vcrA and bvcA genes documented a development in the reducing microbes (iron-reducing, sulfate-reducing and chlororespiring bacteria) that benefited under the conditions of the site and that was probably responsible for the high dechlorination and/or Cr(VI) reduction. The results of this study demonstrate the feasibility and high efficiency of the combined nano-biotechnological approach of nZVI and whey application in-situ for the removal of Cr(VI) and chlorinated ethenes from the groundwater of the contaminated site.
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Affiliation(s)
- Jan Němeček
- ENACON s.r.o., Krčská 16, CZ-140 00 Prague 4, Czech Republic; Technical University of Liberec, Studentská 2, CZ-461 17 Liberec, Czech Republic
| | - Petr Pokorný
- ENACON s.r.o., Krčská 16, CZ-140 00 Prague 4, Czech Republic
| | - Ondřej Lhotský
- DEKONTA a.s., Volutová 2523, CZ-158 00 Prague 5, Czech Republic; Institute for Environmental Studies, Faculty of Science, Charles University in Prague, Benátská 2, CZ-12801, Prague 2, Czech Republic
| | - Vladislav Knytl
- DEKONTA a.s., Volutová 2523, CZ-158 00 Prague 5, Czech Republic
| | - Petra Najmanová
- DEKONTA a.s., Volutová 2523, CZ-158 00 Prague 5, Czech Republic
| | - Jana Steinová
- Technical University of Liberec, Studentská 2, CZ-461 17 Liberec, Czech Republic
| | - Miroslav Černík
- Technical University of Liberec, Studentská 2, CZ-461 17 Liberec, Czech Republic
| | - Alena Filipová
- Institute for Environmental Studies, Faculty of Science, Charles University in Prague, Benátská 2, CZ-12801, Prague 2, Czech Republic; Institute of Microbiology, Academy of Sciences of the Czech Republic, v.v.i., Vídeňská 1083, CZ-142 20 Prague 4, Czech Republic
| | - Jan Filip
- Regional Centre of Advanced Technologies and Materials, Palacký University in Olomouc, 17. listopadu 1192/12, CZ-771 46 Olomouc, Czech Republic
| | - Tomáš Cajthaml
- Institute for Environmental Studies, Faculty of Science, Charles University in Prague, Benátská 2, CZ-12801, Prague 2, Czech Republic; Institute of Microbiology, Academy of Sciences of the Czech Republic, v.v.i., Vídeňská 1083, CZ-142 20 Prague 4, Czech Republic.
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30
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Sharma VK, Filip J, Zboril R, Varma RS. ChemInform Abstract: Natural Inorganic Nanoparticles - Formation, Fate, and Toxicity in the Environment. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/chin.201601212] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Cajthaml T, Němeček J, Piokorný P, Lhotský O, Knytl V, Najmanová P, Steinová J, Černík M, Filipová A, Filip J. Combination of nanoscale-zero-valent iron and organic substrate stimulation for efficient remediation of co-mingled plume contaminated with Cr(VI) and chlorinated solvents. N Biotechnol 2016. [DOI: 10.1016/j.nbt.2016.06.747] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Klukova L, Filip J, Belicky S, Vikartovska A, Tkac J. Graphene oxide-based electrochemical label-free detection of glycoproteins down to aM level using a lectin biosensor. Analyst 2016; 141:4278-82. [PMID: 27277703 DOI: 10.1039/c6an00793g] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A label-free ultrasensitive impedimetric biosensor with lectin immobilised on graphene oxide (GO) for the detection of glycoproteins from 1 aM is shown here. This is the first time a functional lectin biosensor with lectin directly immobilised on a graphene-based interface without any polymer modifier has been described. The study also shows that hydrophilic oxidative debris present on GO has a beneficial effect on the sensitivity of (8.46 ± 0.20)% per decade for the lectin biosensor compared to the sensitivity of (4.52 ± 0.23)% per decade for the lectin biosensor built up from GO with the oxidative debris washed out.
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Affiliation(s)
- L Klukova
- Department of Glycobiotechnology, Institute of Chemistry, Slovak Academy of Sciences, Dubravska cesta 9, 845 38 Bratislava, Slovakia.
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33
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Akaraonye E, Filip J, Safarikova M, Salih V, Keshavarz T, Knowles JC, Roy I. Composite scaffolds for cartilage tissue engineering based on natural polymers of bacterial origin, thermoplastic poly(3-hydroxybutyrate) and micro-fibrillated bacterial cellulose. POLYM INT 2016. [DOI: 10.1002/pi.5103] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Everest Akaraonye
- Applied Biotechnology Research Group, Department of Life Sciences, Faculty of Science and Technology; University of Westminster; London W1W 6UW UK
| | - Jan Filip
- Regional Centre of Advanced Technologies and Materials, Faculty of Science; Palacký University in Olomouc; Šlechtitelů 27 CZ-78371 Olomouc Czech Republic
| | - Mirka Safarikova
- Biology Centre, ISB; AS CR Na Sadkach 7 370 05 Ceske Budejovice Czech Republic
| | - Vehid Salih
- Department of Biomaterial and Tissue Engineering, Eastman Dental Institute; University College London; WC1X 8LD UK
- Plymouth University Peninsula Schools of Medicine and Dentistry; Portland Square; Drake Circus Plymouth Devon PL4 8AA UK
| | - Tajalli Keshavarz
- Applied Biotechnology Research Group, Department of Life Sciences, Faculty of Science and Technology; University of Westminster; London W1W 6UW UK
| | - Jonathan C Knowles
- Department of Biomaterial and Tissue Engineering, Eastman Dental Institute; University College London; WC1X 8LD UK
- WCU Research Centre of Nanobiomedical Science; Dankook University; San#29, Anseo-dong, Dongnam-gu Cheonan-si Chungnam South Korea
| | - Ipsita Roy
- Applied Biotechnology Research Group, Department of Life Sciences, Faculty of Science and Technology; University of Westminster; London W1W 6UW UK
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34
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Petala E, Baikousi M, Karakassides MA, Zoppellaro G, Filip J, Tuček J, Vasilopoulos KC, Pechoušek J, Zbořil R. Synthesis, physical properties and application of the zero-valent iron/titanium dioxide heterocomposite having high activity for the sustainable photocatalytic removal of hexavalent chromium in water. Phys Chem Chem Phys 2016; 18:10637-46. [DOI: 10.1039/c6cp01013j] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A magnetic photocatalytic nanocomposite was prepared with enhanced removal capability for Cr(vi) due to synergistic effects.
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Affiliation(s)
- Eleni Petala
- Regional Centre of Advanced Technologies and Materials
- Departments of Physical Chemistry and Experimental Physics
- Faculty of Science
- Palacký University
- CZ-771 46 Olomouc
| | - Maria Baikousi
- Department of Materials Science and Engineering
- University of Ioannina
- Greece
| | | | - Giorgio Zoppellaro
- Regional Centre of Advanced Technologies and Materials
- Departments of Physical Chemistry and Experimental Physics
- Faculty of Science
- Palacký University
- CZ-771 46 Olomouc
| | - Jan Filip
- Regional Centre of Advanced Technologies and Materials
- Departments of Physical Chemistry and Experimental Physics
- Faculty of Science
- Palacký University
- CZ-771 46 Olomouc
| | - Jiří Tuček
- Regional Centre of Advanced Technologies and Materials
- Departments of Physical Chemistry and Experimental Physics
- Faculty of Science
- Palacký University
- CZ-771 46 Olomouc
| | - Konstantinos C. Vasilopoulos
- Department of Materials Science and Engineering
- University of Ioannina
- Greece
- Institute of Electronic Structure and Laser
- Foundation for Research and Technology-Hellas
| | - Jiří Pechoušek
- Regional Centre of Advanced Technologies and Materials
- Departments of Physical Chemistry and Experimental Physics
- Faculty of Science
- Palacký University
- CZ-771 46 Olomouc
| | - Radek Zbořil
- Regional Centre of Advanced Technologies and Materials
- Departments of Physical Chemistry and Experimental Physics
- Faculty of Science
- Palacký University
- CZ-771 46 Olomouc
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35
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Thekkae Padil VV, Filip J, Suresh KI, Wacławek S, Černík M. Electrospun membrane composed of poly[acrylonitrile-co-(methyl acrylate)-co-(itaconic acid)] terpolymer and ZVI nanoparticles and its application for the removal of arsenic from water. RSC Adv 2016. [DOI: 10.1039/c6ra24036d] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We present a facile approach to immobilizing nanoscale zero valent iron (nZVI) particles onto an electrospun membrane based on poly[acrylonitrile-co-(methyl acrylate)-co-(itaconic acid)] (hereinafter referred to as AN/MA/IA).
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Affiliation(s)
- Vinod Vellora Thekkae Padil
- Laboratory of Chemical Remediation Processes
- Institute for Nanomaterials
- Advanced Technologies and Innovation
- Technical University of Liberec
- Liberec 1
| | - Jan Filip
- Regional Centre of Advanced Technologies and Materials
- Faculty of Science
- Olomouc
- Czech Republic
| | | | - Stanisław Wacławek
- Laboratory of Chemical Remediation Processes
- Institute for Nanomaterials
- Advanced Technologies and Innovation
- Technical University of Liberec
- Liberec 1
| | - Miroslav Černík
- Laboratory of Chemical Remediation Processes
- Institute for Nanomaterials
- Advanced Technologies and Innovation
- Technical University of Liberec
- Liberec 1
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Jarošová B, Filip J, Hilscherová K, Tuček J, Šimek Z, Giesy JP, Zbořil R, Bláha L. Can zero-valent iron nanoparticles remove waterborne estrogens? J Environ Manage 2015; 150:387-392. [PMID: 25567735 DOI: 10.1016/j.jenvman.2014.12.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2014] [Revised: 11/30/2014] [Accepted: 12/03/2014] [Indexed: 06/04/2023]
Abstract
Steroidal estrogens are one of the most challenging classes of hazardous contaminants as they can cause adverse effects to biota in extremely low concentrations. They emerge in both waste waters and surface waters serving as a source of drinking water. Environmental Quality Standards for 17β-estradiol (E2) and 17α-ethinylestradiol (EE2), promulgated within the EU Water Framework Directive, are 0.4 and 0.035 ng L(-1), respectively. Because nanoscale zero-valent iron (nZVI) particles have been previously used in numerous remediation technologies and have the advantage of possible magnetic separation, interaction of nZVI with E2 and EE2 in water was investigated to assess the potential role of nZVI in removing steroidal estrogens. A mixture of E2 and EE2 dissolved in water was shaken with varying doses of nZVI for 1-5 h. Concentration-dependent removal of the estrogens was observed but removal did not increase significantly with time. Concentrations of the estrogens were determined by HPLC/MS/MS and a biodetection reporter gene assay. Sorption and nonspecific oxygen-mediated oxidation of estrogens were identified as the most probable removal mechanisms. Two independent experiments confirmed that significant decrease of estrogens concentration is achieved when at least 2 g L(-1) of nZVI is applied. The presented study provides insights into the mechanisms of nZVI interaction with steroidal estrogens under aerobic conditions prevailing in currently applied water treatment technologies.
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Affiliation(s)
- Barbora Jarošová
- Research Centre for Toxic Compounds in the Environment (RECETOX), Masaryk University, Kamenice 5, CZ-62500 Brno, Czech Republic
| | - Jan Filip
- Regional Centre of Advanced Technologies and Materials, Departments of Physical Chemistry and Experimental Physics, Faculty of Science, Palacký University in Olomouc, 17. listopadu 1192/12, CZ-771 46 Olomouc, Czech Republic.
| | - Klára Hilscherová
- Research Centre for Toxic Compounds in the Environment (RECETOX), Masaryk University, Kamenice 5, CZ-62500 Brno, Czech Republic
| | - Jiří Tuček
- Regional Centre of Advanced Technologies and Materials, Departments of Physical Chemistry and Experimental Physics, Faculty of Science, Palacký University in Olomouc, 17. listopadu 1192/12, CZ-771 46 Olomouc, Czech Republic
| | - Zdeněk Šimek
- Research Centre for Toxic Compounds in the Environment (RECETOX), Masaryk University, Kamenice 5, CZ-62500 Brno, Czech Republic
| | - John P Giesy
- University of Saskatchewan, Department of Veterinary Biomedical Sciences and Toxicology Centre, 44 Campus Drive, Saskatoon, SK S7N 5B3, Canada; Department of Biology & Chemistry and State Key Laboratory in Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong, China; State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, People's Republic of China
| | - Radek Zbořil
- Regional Centre of Advanced Technologies and Materials, Departments of Physical Chemistry and Experimental Physics, Faculty of Science, Palacký University in Olomouc, 17. listopadu 1192/12, CZ-771 46 Olomouc, Czech Republic
| | - Luděk Bláha
- Research Centre for Toxic Compounds in the Environment (RECETOX), Masaryk University, Kamenice 5, CZ-62500 Brno, Czech Republic
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Prucek R, Tuček J, Kolařík J, Hušková I, Filip J, Varma RS, Sharma VK, Zbořil R. Ferrate(VI)-prompted removal of metals in aqueous media: mechanistic delineation of enhanced efficiency via metal entrenchment in magnetic oxides. Environ Sci Technol 2015; 49:2319-2327. [PMID: 25607569 DOI: 10.1021/es5048683] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The removal efficiency of heavy metal ions (cadmium(II), Cd(II); cobalt(II), Co(II); nickel(II), Ni(II); copper(II), Cu(II)) by potassium ferrate(VI) (K2FeO4, Fe(VI)) was studied as a function of added amount of Fe(VI) (or Fe) and varying pH. At pH = 6.6, the effective removal of Co(II), Ni(II), and Cu(II) from water was observed at a low Fe-to-heavy metal ion ratio (Fe/M(II) = 2:1) while a removal efficiency of 70% was seen for Cd(II) ions at a high Fe/Cd(II) weight ratio of 15:1. The role of ionic radius and metal valence state was explored by conducting similar removal experiments using Al(III) ions. The unique combination of X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), in-field Mössbauer spectroscopy, and magnetization measurements enabled the delineation of several distinct mechanisms for the Fe(VI)-prompted removal of metal ions. Under a Fe/M weight ratio of 5:1, Co(II), Ni(II), and Cu(II) were removed by the formation of MFe2O4 spinel phase and partially through their structural incorporation into octahedral positions of γ-Fe2O3 (maghemite) nanoparticles. In comparison, smaller sized Al(III) ions got incorporated easily into the tetrahedral positions of γ-Fe2O3 nanoparticles. In contrast, Cd(II) ions either did not form the spinel ferrite structure or were not incorporated into the lattic of iron(III) oxide phase due to the distinct electronic structure and ionic radius. Environmentally friendly removal of heavy metal ions at a much smaller dosage of Fe than those of commonly applied iron-containing coagulants and the formation of ferrimagnetic species preventing metal ions leaching back into the environment and allowing their magnetic separation are highlighted.
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Affiliation(s)
- Robert Prucek
- Regional Centre of Advanced Technologies and Materials, Departments of Physical Chemistry and Experimental Physics, Faculty of Science, Palacký University , Šlechtitelů 11, 783 71 Olomouc, Czech Republic
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38
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Abstract
Naturally occurring metal nanoparticles are formed via physical and biogeochemical processes in the environment wherein natural organic matter plays an important role in their occurrence, stability, and toxicity.
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Affiliation(s)
- Virender K. Sharma
- Department of Environmental and Occupational Health
- School of Public Health
- Texas A&M University
- College Station
- USA
| | - Jan Filip
- Regional Centre of Advanced Technologies and Materials
- Departments of Experimental Physics and Physical Chemistry
- Faculty of Science
- Palacký University in Olomouc
- 771 46 Olomouc
| | - Radek Zboril
- Regional Centre of Advanced Technologies and Materials
- Departments of Experimental Physics and Physical Chemistry
- Faculty of Science
- Palacký University in Olomouc
- 771 46 Olomouc
| | - Rajender S. Varma
- Regional Centre of Advanced Technologies and Materials
- Departments of Experimental Physics and Physical Chemistry
- Faculty of Science
- Palacký University in Olomouc
- 771 46 Olomouc
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Sracek O, Mihaljevič M, Kříbek B, Majer V, Filip J, Vaněk A, Penížek V, Ettler V, Mapani B. Geochemistry of mine tailings and behavior of arsenic at Kombat, northeastern Namibia. Environ Monit Assess 2014; 186:4891-4903. [PMID: 24691736 DOI: 10.1007/s10661-014-3746-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Accepted: 03/18/2014] [Indexed: 06/03/2023]
Abstract
The mine tailings at Kombat, in semiarid northeastern Namibia, were investigated by the combination of solid-phase analyses, mineralogical methods, leaching tests, and speciation modeling. Dissolution of the most abundant primary sulfides, chalcopyrite and galena, released copper and lead which were adsorbed onto ferric oxyhydroxides or precipitated in the form of malachite, Cu2CO3(OH)2, and cerussite, PbCO3, respectively. Arsenic released from arsenopyrite was incorporated into ferric oxyhydroxides. Based on sequential extraction and (57)Fe Mössbauer spectroscopy, a large amount of ferric iron is present as low solubility hematite and goethite formed rapidly (<10 years) under warm semiarid climatic conditions, and arsenic in these phases is relatively tightly bound. It seems that Cu and especially Pb in carbonate minerals represent a more serious environmental risk. Immobilization of As in hematite has implications for other mining sites in regions with similar climatic conditions because this process results in long-term immobilization of As.
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Affiliation(s)
- O Sracek
- Department of Geology, Faculty of Science, Palacký University, Olomouc, Czech Republic,
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40
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Polakova K, Pechousek J, Tucek J, Filip J, Kubinek R, Zboril R, Paucek P. Controlled Solid-State Synthesis of Mri Effective Superparamagnetic Maghemite Nanoparticles from Iron(II) Acetate. Biophys J 2014. [DOI: 10.1016/j.bpj.2013.11.3453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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41
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Kilianová M, Prucek R, Filip J, Kolařík J, Kvítek L, Panáček A, Tuček J, Zbořil R. Remarkable efficiency of ultrafine superparamagnetic iron(III) oxide nanoparticles toward arsenate removal from aqueous environment. Chemosphere 2013; 93:2690-2697. [PMID: 24054133 DOI: 10.1016/j.chemosphere.2013.08.071] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2013] [Revised: 08/15/2013] [Accepted: 08/16/2013] [Indexed: 06/02/2023]
Abstract
Arsenates, when present in water resources, constitute a risk to human health. In order to remove them, various technologies have been developed; out of them, sorption approach is widely adopted employing a wide spectrum of suitable sorbent materials. Nanoparticles of iron oxide are frequently used due to a high surface area and ability to control them by external magnetic field. In this work, we report on a simple and cheap synthesis of ultrafine iron(III) oxide nanoparticles with a narrow size distribution and their exploitation in the field of arsenate removal from aqueous environment. It is shown that the adsorption capacity is enhanced by a mesoporous nature of nanoparticle arrangement in their system due to strong magnetic interactions they evolve between nanoparticles. A complete arsenate removal is achieved at Fe/As ratio equal to ∼20/1 and at pH in the range from 5 to 7.6. Under these conditions, the arsenates are completely removed within several minutes of treatment. Among iron-oxide-based nanosystems synthesized and employed in arsenate remediation issues so far, our assembly of iron(III) oxide nanoparticles shows the highest Freundlich adsorption coefficient and equilibrium sorption capacity under conditions maintained. Taking into account simple and low-cost preparation procedure, product high yields, almost monodispersed character, room-temperature superparamagnetic behavior, and strong magnetic response under small applied magnetic fields, the synthesized iron(III) oxide nanoparticles can be regarded as a promising candidate for exploitation in the field of removing undesired toxic pollutants from various real water systems.
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Affiliation(s)
- Martina Kilianová
- Regional Centre of Advanced Technologies and Materials, Departments of Physical Chemistry and Experimental Physics, Faculty of Science, Palacky University, 17. listopadu 1192/12, 771 46 Olomouc, Czech Republic
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42
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Marková Z, Šišková KM, Filip J, Čuda J, Kolář M, Šafářová K, Medřík I, Zbořil R. Air stable magnetic bimetallic Fe-Ag nanoparticles for advanced antimicrobial treatment and phosphorus removal. Environ Sci Technol 2013; 47:5285-5293. [PMID: 23590411 DOI: 10.1021/es304693g] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
We report on new magnetic bimetallic Fe-Ag nanoparticles (NPs) which exhibit significant antibacterial and antifungal activities against a variety of microorganisms including disease causing pathogens, as well as prolonged action and high efficiency of phosphorus removal. The preparation of these multifunctional hybrids, based on direct reduction of silver ions by commercially available zerovalent iron nanoparticles (nZVI) is fast, simple, feasible in a large scale with a controllable silver NP content and size. The microscopic observations (transmission electron microscopy, scanning electron microscopy/electron diffraction spectroscopy) and phase analyses (X-ray diffraction, Mössbauer spectroscopy) reveal the formation of Fe₃O₄/γ-FeOOH double shell on a "redox" active nZVI surface. This shell is probably responsible for high stability of magnetic bimetallic Fe-Ag NPs during storage in air. Silver NPs, ranging between 10 and 30 nm depending on the initial concentration of AgNO₃, are firmly bound to Fe NPs, which prevents their release even during a long-term sonication. Taking into account the possibility of easy magnetic separation of the novel bimetallic Fe-Ag NPs, they represent a highly promising material for advanced antimicrobial and reductive water treatment technologies.
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Affiliation(s)
- Zdenka Marková
- Regional Centre of Advanced Technologies and Materials, Departments of Physical Chemistry and Experimental Physics, Faculty of Science, Palacký University, 17. listopadu 1192/12, 771 46 Olomouc, Czech Republic
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43
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Prucek R, Tuček J, Kolařík J, Filip J, Marušák Z, Sharma VK, Zbořil R. Ferrate(VI)-induced arsenite and arsenate removal by in situ structural incorporation into magnetic iron(III) oxide nanoparticles. Environ Sci Technol 2013; 47:3283-3292. [PMID: 23451768 DOI: 10.1021/es3042719] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We report the first example of arsenite and arsenate removal from water by incorporation of arsenic into the structure of nanocrystalline iron(III) oxide. Specifically, we show the capability to trap arsenic into the crystal structure of γ-Fe2O3 nanoparticles that are in situ formed during treatment of arsenic-bearing water with ferrate(VI). In water, decomposition of potassium ferrate(VI) yields nanoparticles having core-shell nanoarchitecture with a γ-Fe2O3 core and a γ-FeOOH shell. High-resolution X-ray photoelectron spectroscopy and in-field (57)Fe Mössbauer spectroscopy give unambiguous evidence that a significant portion of arsenic is embedded in the tetrahedral sites of the γ-Fe2O3 spinel structure. Microscopic observations also demonstrate the principal effect of As doping on crystal growth as reflected by considerably reduced average particle size and narrower size distribution of the "in-situ" sample with the embedded arsenic compared to the "ex-situ" sample with arsenic exclusively sorbed on the iron oxide nanoparticle surface. Generally, presented results highlight ferrate(VI) as one of the most promising candidates for advanced technologies of arsenic treatment mainly due to its environmentally friendly character, in situ applicability for treatment of both arsenites and arsenates, and contrary to all known competitive technologies, firmly bound part of arsenic preventing its leaching back to the environment. Moreover, As-containing γ-Fe2O3 nanoparticles are strongly magnetic allowing their separation from the environment by application of an external magnet.
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Affiliation(s)
- Robert Prucek
- Regional Centre of Advanced Technologies and Materials, Departments of Physical Chemistry and Experimental Physics, Faculty of Science, Palacký University, 17. listopadu 1192/12, 771 46 Olomouc, Czech Republic
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Machala L, Zoppellaro G, Tuček J, Šafářová K, Marušák Z, Filip J, Pechoušek J, Zbořil R. Thermal decomposition of Prussian Blue microcrystals and nanocrystals – iron(iii) oxide polymorphism control through reactant particle size. RSC Adv 2013. [DOI: 10.1039/c3ra42233j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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45
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Zboril R, Andrle M, Oplustil F, Machala L, Tucek J, Filip J, Marusak Z, Sharma VK. Treatment of chemical warfare agents by zero-valent iron nanoparticles and ferrate(VI)/(III) composite. J Hazard Mater 2012; 211-212:126-130. [PMID: 22119195 DOI: 10.1016/j.jhazmat.2011.10.094] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2011] [Revised: 10/28/2011] [Accepted: 10/28/2011] [Indexed: 05/31/2023]
Abstract
Nanoscale zero-valent iron (nZVI) particles and a composite containing a mixture of ferrate(VI) and ferrate(III) were prepared by thermal procedures. The phase compositions, valence states of iron, and particle sizes of iron-bearing compounds were determined by combination of X-ray powder diffraction, Mössbauer spectroscopy and scanning electron microscopy. The applicability of these environmentally friendly iron based materials in treatment of chemical warfare agents (CWAs) has been tested with three representative compounds, sulfur mustard (bis(2-chlorethyl) sulfide, HD), soman ((3,3'-imethylbutan-2-yl)-methylphosphonofluoridate, GD), and O-ethyl S-[2-(diisopropylamino)ethyl] methylphosphonothiolate (VX). Zero-valent iron, even in the nanodimensional state, had a sluggish reactivity with CWAs, which was also observed in low degrees of CWAs degradation. On the contrary, ferrate(VI)/(III) composite exhibited a high reactivity and complete degradations of CWAs were accomplished. Under the studied conditions, the estimated first-order rate constants (≈ 10(-2)s(-1)) with the ferrate(VI)/(III) composite were several orders of magnitude higher than those of spontaneous hydrolysis of CWAs (10(-8)-10(-6)s(-1)). The results demonstrated that the oxidative technology based on application of ferrate(VI) is very promising to decontaminate CWAs.
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Affiliation(s)
- Radek Zboril
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, 17. listopadu 1192/12, 771 46 Olomouc, Czech Republic.
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Frydrych J, Machala L, Tucek J, Siskova K, Filip J, Pechousek J, Safarova K, Vondracek M, Seo JH, Schneeweiss O, Grätzel M, Sivula K, Zboril R. Facile fabrication of tin-doped hematite photoelectrodes – effect of doping on magnetic properties and performance for light-induced water splitting. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm34639g] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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47
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Filip J, Yngard RA, Siskova K, Marusak Z, Ettler V, Sajdl P, Sharma VK, Zboril R. Mechanisms and Efficiency of the Simultaneous Removal of Metals and Cyanides by Using Ferrate(VI): Crucial Roles of Nanocrystalline Iron(III) Oxyhydroxides and Metal Carbonates. Chemistry 2011; 17:10097-105. [DOI: 10.1002/chem.201100711] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2011] [Indexed: 11/10/2022]
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Procházka V, Stěpánková H, Chlan V, Tuček J, Cuda J, Kouřil K, Filip J, Zbořil R. Electric field gradient in FeTiO3 by nuclear magnetic resonance and ab initio calculations. J Phys Condens Matter 2011; 23:205503. [PMID: 21540505 DOI: 10.1088/0953-8984/23/20/205503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Temperature dependence of nuclear magnetic resonance (NMR) spectra of (47)Ti and (49)Ti in polycrystalline ilmenite FeTiO(3) was measured in the range from 5 to 300 K under an external magnetic field of 9.401 T. NMR spectra collected between 300 and 77 K exhibit a resolved quadrupole splitting. The electric field gradient (EFG) tensor was evaluated for Ti nuclei and the ratio of (47)Ti and (49)Ti nuclear quadrupole moments was refined during the fitting procedure. Below 77 K, the fine structure of quadrupole splitting disappears due to the enormous increase of anisotropy. As a counterpart, ab initio calculations were performed using full potential augmented plane waves + local orbitals. The calculated EFG tensors for Ti and Fe were compared to the experimental ones evaluated from NMR and the Mössbauer spectroscopy experiments.
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Affiliation(s)
- V Procházka
- Centre for Nanomaterial Research, Faculty of Science, Palacky University, Olomouc, Czech Republic.
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49
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Prucek R, Tuček J, Kilianová M, Panáček A, Kvítek L, Filip J, Kolář M, Tománková K, Zbořil R. The targeted antibacterial and antifungal properties of magnetic nanocomposite of iron oxide and silver nanoparticles. Biomaterials 2011; 32:4704-13. [PMID: 21507482 DOI: 10.1016/j.biomaterials.2011.03.039] [Citation(s) in RCA: 174] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2011] [Accepted: 03/12/2011] [Indexed: 11/16/2022]
Abstract
Two types of magnetic binary nanocomposites, Ag@Fe(3)O(4) and γ-Fe(2)O(3)@Ag, were synthesized and characterized and their antibacterial activities were tested. As a magnetic component, Fe(3)O(4) (magnetite) nanoparticles with an average size of about 70 nm and monodisperse γ-Fe(2)O(3) (maghemite) nanoparticles with an average size of 5 nm were used. Nanocomposites were prepared via in situ chemical reduction of silver ions by maltose in the presence of particular magnetic phase and molecules of polyacrylate serving as a spacer among iron oxide and silver nanoparticles. In the case of the Ag@Fe(3)O(4) nanocomposite, silver nanoparticles, caught at the surfaces of Fe(3)O(4) nanocrystals, were around 5 nm in a size. On the contrary, in the case of the γ-Fe(2)O(3)@Ag nanocomposite, ultrafine γ-Fe(2)O(3) nanoparticles surrounded silver nanoparticles ranging in a size between 20 and 40 nm. In addition, the molecules of polyacrylate in this nanocomposite type suppress considerably interparticle magnetic interactions as proved by magnetization measurements. Both synthesized nanocomposites exhibited very significant antibacterial and antifungal activities against ten tested bacterial strains (minimum inhibition concentrations (MIC) from 15.6 mg/L to 125 mg/L) and four candida species (MIC from 1.9 mg/L to 31.3 mg/L). Moreover, acute nanocomposite cytotoxicity against mice embryonal fibroblasts was observed at concentrations of higher than 430 mg/L (Ag@Fe(3)O(4)) and 292 mg/L (γ-Fe(2)O(3)@Ag). With respect to the non-cytotoxic nature of the polyacrylate linker, both kinds of silver nanocomposites are well applicable for a targeted magnetic delivery of silver nanoparticles in medicinal and disinfection applications.
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Affiliation(s)
- Robert Prucek
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacky University, Slechtitelu 11, 78371 Olomouc, Czech Republic.
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Klimkova S, Cernik M, Lacinova L, Filip J, Jancik D, Zboril R. Zero-valent iron nanoparticles in treatment of acid mine water from in situ uranium leaching. Chemosphere 2011; 82:1178-1184. [PMID: 21193219 DOI: 10.1016/j.chemosphere.2010.11.075] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2010] [Revised: 11/25/2010] [Accepted: 11/25/2010] [Indexed: 05/30/2023]
Abstract
Acid mine water from in situ chemical leaching of uranium (Straz pod Ralskem, Czech Republic) was treated in laboratory scale experiments by zero-valent iron nanoparticles (nZVI). For the first time, nZVI were applied for the treatment of the real acid water system containing the miscellaneous mixture of pollutants, where the various removal mechanisms occur simultaneously. Toxicity of the treated saline acid water is caused by major contaminants represented by aluminum and sulphates in a high concentration, as well as by microcontaminants like As, Be, Cd, Cr, Cu, Ni, U, V, and Zn. Laboratory batch experiments proved a significant decrease in concentrations of all the monitored pollutants due to an increase in pH and a decrease in oxidation-reduction potential related to an application of nZVI. The assumed mechanisms of contaminants removal include precipitation of cations in a lower oxidation state, precipitation caused by a simple pH increase and co-precipitation with the formed iron oxyhydroxides. The possibility to control the reaction kinetics through the nature of the surface stabilizing shell (polymer vs. FeO nanolayer) is discussed as an important practical aspect.
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Affiliation(s)
- Stepanka Klimkova
- Department of New Technologies and Applied Informatics, University of Liberec, Studentska 2, 461 17 Liberec, Czech Republic
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