The iron(III)-modified natural zeolitic tuff as an adsorbent and carrier for selenium oxyanions

Jevtić, Sanja; Arčon, Iztok; Rečnik, Aleksander; Babić, Biljana; Mazaj, Matjaž; Pavlović, Jelena; Matijašević, Danka; Nikšić, Miomir; Rajić, Nevenka

doi:10.1016/j.micromeso.2014.06.008

Cited by 28 publications

(26 citation statements)

References 35 publications

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“…Pure culture of basidiomycete Coriolus versicolor was obtained from the collection of the Department of Industrial Microbiology, Faculty of Agriculture, University of Belgrade. Inoculum (spawn) prepared on wheat grains ( Jevtić et al, 2014 ) was used as seed for fruiting body production. The substrate consisted of oak sawdust, wheat straw, and wheat bran (in 5:3:2 ratio).…”

Section: Methodsmentioning

confidence: 99%

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The Antibacterial Activity of Coriolus versicolor Methanol Extract and Its Effect on Ultrastructural Changes of Staphylococcus aureus and Salmonella Enteritidis

et al. 2016

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The antibacterial activity of methanol extract obtained from fruiting body of industrially grown basidiomycete Coriolus versicolor was examined. The Minimum Inhibitory Concentration (MIC) values against various bacteria ranged from 0.625 to 20 mg mL-1. C. versicolor expressed bactericidal activity against both Gram-positive and Gram-negative bacteria. The growth curves of Staphylococcus aureus and Salmonella enterica serovar Enteritidis, measured at 630 nm, and confirmed with macrodilution method showed that the obtained extract could inhibit the growth of tested bacteria. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), and the loss of 260-nm-absorbing material were used to examine the ultrastructural changes in bacteria induced by the extract. When S. aureus was exposed to the MIC of C. versicolor, elongated and malformed cells were observed by SEM, while S. Enteritidis treated cells appeared shorter and aggregated with ruptured cell walls. TEM revealed the formation of non-membrane-enclosed bodies and depleted inner content of S. aureus. Larger and irregular periplasmic space and deformed and scattered components of the cell envelope were observed in treated S. Enteritidis. The loss of 260-nm-absorbing material indicated that the disruptive action of the extract on cytoplasmic membrane was more pronounced in S. aureus than in S. Enteritidis treated cells. The UV and FTIR spectrophotometric analyses revealed diverse composition of C. versicolor extract and high content of total phenolics. Altogether, mushroom extracts could be used to develop nutraceuticals or drugs effective against pathogenic microorganisms.

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Section: Methodsmentioning

confidence: 99%

“…After the mycelia had completely colonized the substrate in the dark for 20 days, fructification was performed at 20 ± 2°C with 80–95% relative humidity (Growth Chamber GC-1000TLH, Jeio Tech, Korea). The mushrooms were air-dried at 40°C and ground to fine powder ( Orth et al, 1993 ; Mondal et al, 2010 ; Jevtić et al, 2014 ).…”

Section: Methodsmentioning

confidence: 99%

The Antibacterial Activity of Coriolus versicolor Methanol Extract and Its Effect on Ultrastructural Changes of Staphylococcus aureus and Salmonella Enteritidis

et al. 2016

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“…Obviously, in a low pH range of aqueous solutions a positive surface charging predominates on the hydrated oxides. Most authors characterize Fe(III) oxihydroxides as anion-active, i.e., oxides with a positive charging of their surface, while the surface of MnOx is cation-active and therefore has a negative charging [3,5,8,14,20]. This statement is in a good agreement with our results, because a negatively charged MnOx-zeolite showed the highest Pb(II) cation uptake capacity, while the FeO(OH)-zeolite with a positive surface charging showed the lowest adsorption ability for Pb(II) cations.…”

Section: Pb(ii) Removal Onto Adsorbents Studiedmentioning

confidence: 99%

“…Traditionally, the Fe and Mn oxide-based adsorbents are considered to be effective and low cost adsorption materials for environmental pollutant removal [3][4][5][6]. As they may cause a potential human risk based on nanoscale effect, they need to be immobilized onto various supports (carriers) when their particle size for surface enlargement is below 100 µm [1,2,8].…”

Section: Introductionmentioning

confidence: 99%

Study of Mono- and Bimetallic Fe and Mn Oxide-Supported Clinoptilolite for Improved Pb(II) Removal

2021

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A cost-effective, iron- and manganese-oxide-supported clinoptilolite-based rock was prepared. Based on its nanoporous structure, it worked as a nanoreactor, thereby providing enhanced functionalities. The mono- and bimetallic Fe- and Mn-oxide-supported clinoptilolite was thoroughly characterized with thermoanalytical FT-IR, XRD, SEM, and XPS spectroscopy. All the spectral procedures that were used confirmed the occurrence of a new MnO2 phase (predominantly birnessite), including mostly amorphous iron oxi(hydr)oxide (FeO(OH)) species on the surface of the above-synthesized adsorbents. The synthesized products validated a considerably higher adsorption capacity toward Pb(II) pollutants compared to the natural clinoptilolite. The following order of a(max) toward Pb(II) was found: MnOx-zeolite (202.1 mg/g) > FeO(OH)-MnOx-zeolite (101.3 mg/g) > FeO(OH)-zeolite (80 mg/g) > natural zeolite (54.9 mg/g). The adsorption equilibrium data were analyzed by the two-parameter empirical isotherm models Langmuir, Freundlich, and BET as well as the three-parameter Redlich–Peterson isotherm.

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“…13 Nitrate ions have some ligand ability and it seems likely that nitrate, like arsenate, selenite or phosphate ions forms innersphere complexes with oxide particles of iron(III). [42][43][44] Due to its binding ability towards nitrate ions, the FeZ was studied in the column leaching experiment as a soil supplement. The NW and SRB samples exhibited significantly lower leaching rate in the control system I (0.9 and 4.9 mg kg -1 , respectively) in contrast to the BH sample (21.9 mg kg -1 ).…”

Section: Nitrate Leachingmentioning

confidence: 99%

Applicability of zeolites in potassium and nitrate retention in different soil types

Pavlović

Krogstad

Rajić³

2017

JSCS

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Environmental protection and sustainable agricultural production require the use of inexpensive and environmentally acceptable soil supplements. Objectives of this study were to investigate the influence of the addition of the natural zeolite-clinoptilolite (NZ) and its iron(III)-modified form (FeZ) on the potassium and nitrate leaching from sandy, silty loam and silty clay soils. The zeolites were added in two amounts: 0.5 (FeZ) and 1.0 wt. % (NZ and FeZ). The experiments were carried out in columns organized in eight experimental systems containing unamended (control specimens) and amended soils. The concentration of K + and NO 3-N in the leachates was monitored during 7 days. The obtained results indicate that the K + and NO 3-N leaching mainly depends on the soil type and pH of the soil. The NZ and FeZ addition has the highest impact on the K + retention in the acidic sandy soil. The highest NO 3-N retention is obtained with FeZ in acidic silty loam soil. The K + leaching kinetics for all the studied soils follow the Avrami kinetics model with the parameter n < 1. This study demonstrates that NZ and FeZ can be a good soil supplement for the K + retention for all studied soils and in the NO 3-N retention for silty loam and silty clay soils.

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The iron(III)-modified natural zeolitic tuff as an adsorbent and carrier for selenium oxyanions

Cited by 28 publications

References 35 publications

The Antibacterial Activity of Coriolus versicolor Methanol Extract and Its Effect on Ultrastructural Changes of Staphylococcus aureus and Salmonella Enteritidis

The Antibacterial Activity of Coriolus versicolor Methanol Extract and Its Effect on Ultrastructural Changes of Staphylococcus aureus and Salmonella Enteritidis

Study of Mono- and Bimetallic Fe and Mn Oxide-Supported Clinoptilolite for Improved Pb(II) Removal

Applicability of zeolites in potassium and nitrate retention in different soil types

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