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Studies on natural clinoptilolites—II
Journal of Inorganic and Nuclear Chemistry, 1981Abstract The mobilities of Na + , K + , Rb + , Cs + , Ca 2+ , Sr 2+ and Ba 2+ ions in nearly homoionic forms of Hector clinoptilolite have been measured by radiochemical means. Self-diffusion coefficients at various temperatures were determined, enabling the calculation of energies, entropies and free energies of activation for cation migration in ...
A. Araya, A. Dyer
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Journal of Hazardous Materials, 2011
The increasing demands for environmental protection and sustainable food production require an increase in the use of natural and non-toxic materials for agriculture. In this study, the feasibility of using surfactant-modified zeolite (SMZ) in comparison with zeolite clinoptilolite (Cp) application to reduce nitrate leaching and enhance crop growth was
Raheleh, Malekian +2 more
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The increasing demands for environmental protection and sustainable food production require an increase in the use of natural and non-toxic materials for agriculture. In this study, the feasibility of using surfactant-modified zeolite (SMZ) in comparison with zeolite clinoptilolite (Cp) application to reduce nitrate leaching and enhance crop growth was
Raheleh, Malekian +2 more
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On the state of iron in a clinoptilolite
Hyperfine Interactions, 1995The characterization of an iron-containing natural zeolitic sample from the deposit of Tasajeras (Cuba) has been carried out by means of X-ray powder diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX), X-ray photoelectron spectroscopy (XPS),57Fe Mössbauer spectroscopy and Fe K-edge X-ray absorption near-edge ...
Marco, J.F. +5 more
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Characterization of modified clinoptilolite
Journal of Radioanalytical and Nuclear Chemistry Letters, 1992Samples of clinoptilolite were modified using insoluble hexacyanoferrate from aqueous solution. The modified samples were characterized by elemental analysis, powder X-ray diffraction, solid state NMR and vibrational spectroscopy. The sorption properties of modified clinoptilolite were studied, too.
J. Novosad, J. Jandl, J. D. Woollins
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Water Research, 2006
Clinoptilolite, a natural zeolite, was used for the synthesis of a high surface area Clinoptilolite-Iron oxide system, in order to be used for the removal of Mn2+ ions from drinking water samples. The new system was obtained by adding natural clinoptilolite in an iron nitrate solution under strongly basic conditions.
Maria Doula
exaly +3 more sources
Clinoptilolite, a natural zeolite, was used for the synthesis of a high surface area Clinoptilolite-Iron oxide system, in order to be used for the removal of Mn2+ ions from drinking water samples. The new system was obtained by adding natural clinoptilolite in an iron nitrate solution under strongly basic conditions.
Maria Doula
exaly +3 more sources
Natural Clinoptilolite Nanoparticles Coated with Phosphatidylcholine
Doklady Biochemistry and Biophysics, 2022A nanocarrier was obtained by coating the natural clinoptilolite particle surface with a phosphatidylcholine layer. The shell effective size does not exceed the thickness of the phospholipid molecular layer, which was confirmed by UV spectrometry and molecular mass spectrometry.
A G, Pogorelov +5 more
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Antiviral properties of clinoptilolite
Microporous and Mesoporous Materials, 2005The aim of this study was to evaluate the antiviral properties of clinoptilolite, a natural non-toxic zeolite. Herein, a fine powder of micronized zeolite (MZ) was obtained by tribomechanical micronization of natural clinoptilolite. Different viral suspensions were treated with MZ in concentrations ranging from 0.5 to 50 mg/ml.
Grce, Magdalena, Pavelić, Krešimir
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Removal of copper and lead by clinoptilolite and clinoptilolite-iron system
2010The increasing levels of toxic metals (copper, zinc, cadmium, lead, nickel, chromium, etc.) that are discharged to the environment as industrial wastes, represent a serious threat to human health, living resources and ecological systems. Due to their tendency to accumulate in living organisms, causing various diseases and disorders, the treatment ...
Kragović, Milan +8 more
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Clinoptilolite-Heulandite Nomenclature
Reviews in Mineralogy and Geochemistry, 2001Heulandite was first named in 1822 for the English mineral collector, J. H. Heuland (see Dana 1914, p. 574–576). Although it is typically found as macroscopic (commonly 0.2–2 cm in size) crystals in cavities in mafic igneous rocks and is volumetrically minor on the Earth’s surface, heulandite also occurs in larger amounts in some sedimentary deposits ...
D. L. Bish, J. M. Boak
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