Influence of co-milling oxide physical properties on the structural changes of natural clinoptilolite zeolites
DOI:
https://doi.org/10.5564/mjc.v24i50.1250Keywords:
Natural zeolite, co-milling, mechano-chemical treatment, corundum, cristobalite, FTIR, XRD, adsorption, Cr(VI)Abstract
Zeolites are a family of open-framework aluminosilicate minerals used in many diverse fields, including building materials, agriculture, water treatment, and catalysis. In this study, natural zeolites were mechano-chemically treated by co-milling with corundum and cristobalite. The idea behind the study was that co-milling with high-hardness oxides would cause natural zeolite to undergo more structural distortion, potentially increasing its reactivity and sorption capabilities. Corundum has a density of 3.95 g/cm3 and a hardness of 9, while cristobalite has a density of 2.27 g/cm3 and a hardness of 6-7, according to the Mohs hardness scale. In a planetary ball mill, the zeolites and 20 wt.% of various oxides were co-ground for 30 min. The grinding media used were hardened steel balls with a weight ratio of 20:1 between the balls and the minerals. Raw minerals and milled products were evaluated using X-ray diffraction, Fourier-transform infrared spectroscopy and scanning electron microscopy. It revealed that co-milling with different hardness oxides had a minor effect on the structural distortion of raw zeolite. Crystallite size reduction and amorphization were observed in high hardness oxides rather than in zeolite particles. After milling, the amorphization of natural zeolite milled alone was 30.4%, while no significant amorphization was observed when co-milled with corundum and cristobalite. Preliminary results of Cr(VI) adsorption tests on raw and milled zeolites indicate that co-milling with high-hardness oxides is not the preferred method to enhance the activity of natural zeolite.
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References
Margeta K., Farkaš A. (2020) ‘Introductory Chapter: Zeolites - from discovery to new applications on the global market’. Zeolites - New Challenges. 1-10. IntechOpen. https://doi.org/10.5772/intechopen.92907
Król M. (2020) Natural vs Synthetic zeolites. Crystals, 10, 622. https://doi.org/10.3390/cryst10070622
Behrman A.S., (1925) Early history of zeolites. Journal (American Water Works Association), 13, 221-225. https://www.jstor.org/stable/41231725
Eroglu N., Emekci M., and Athanassiou C.G. (2017) Applications of natural zeolites on agriculture and food production. J. Sci. Food. Agriculture, 97, 3487-3499. https://doi.org/10.1002/jsfa.8312
Du G., Li Z., Liao L., Hanson R., Leick S., et al. (2012) Cr(VI) retention and transport through Fe(III)-coated natural zeolite. J. Hazard. Mat., 221-222, 118-123. https://doi.org/10.1016/j.jhazmat.2012.04.016
Zeng Y., Woo H., Lee G., Park J. (2010) Adsorption of Cr(VI) on hexadecylpyridinium bromide (HDPB) modified natural zeolites. Micropor. Mesopor. Mat., 130, 83-91. https://doi.org/10.1016/j.micromeso.2009.10.016
Kosanović C., Bronić J., Subotić B., Smit I., Stubičar M., Tonejc A., Yamamoto T. (1993) Mechanochemistry of zeolites: Part 1. Amorphization of zeolites A and X and synthetic mordenite by ball milling. Zeolites, 13, 261-268. https://doi.org/10.1016/0144-2449(93)90004-M
Kasai E., Mimura H., Sugiyama K., Saito F., Akiba K., Waseda Y. (1994) Mechano-chemical changes in natural and synthetic zeolites by dry grinding using a planetary ball mill. Adv. Powder Technology, 5(2), 189-203. https://doi.org/10.1016/S0921-8831(08)60614-7
Majano G., Borchardt L., Mitchell S., Valtchev V., Pérez Ramírez J. (2014) Rediscovering zeolite mechanochemistry – A pathway beyond current synthesis and modification boundaries, Micropor. Mesopor. Mat., 194, 106-114. https://doi.org/10.1016/j.micromeso.2014.04.006
Zolzaya T., Davaabal B., Ochirbat Z., Oyun-Erdene G., Minjigmaa A., Temuujin J. (2011) The mechanochemical activation study of Tsagaan-tsav zeolite. Mong. J. Chem., 12, 98-10. https://doi.org/10.5564/mjc.v12i0.181
Bohacs K., Kristaly F., Mucsi G. (2018) The influence of mechanical activation on the nanostructure of zeolite. J. Mater. Sci., 53, 13779-13789. https://doi.org/10.1007/s10853-018-2502-2
Pabis-Mazgaj E., Gawenda T., Pichniarczyk P., Stempkowska A. (2021) Mineral composition and structural characterization of the clinoptilolite powders obtained from zeolite-rich tuffs. Minerals, 11(10), 1030. https://doi.org/10.3390/min11101030
http://webmineral.com/data/Clinoptilolite-Na.shtml#.YflUTBf19Jk (last accessed January 10, 2022)
Adhi Putra I.M.W., Kusumawati I.G.A.W. (2018) The use of clinoptilolites as carrier of metformin hydrochloride in drug delivery system: in vitro drug release study. Asian J. Pharm. Clin. Res., 11(11), 285-289. https://doi.org/10.22159/ajpcr.2018.v11i11.24366
Mansouri N., Rikhtegar N., Panahi H.A., Atabi F., Shahraki B.K. (2013) Porosity, characterization and structural properties of natural zeolite – clinoptilolite – as a sorbent. Env. Protec. Eng., 39, 139-152. https://doi.org/10.5277/epe130111
Eskandari L., Kheiri F. (2018) Synthesis, characteristics and kinetic study of magnetic-zeolite nano composite for adsorption of zirconium. Chem. Technol. Ind. J., 13(3), 126.
Serna C.J., Rendon J.l., Iglesias J.E. (1982) Infrared surface modes in corundum-type microcrystalline oxides. Spectrochim. Acta, 38A, 797-802. https://doi.org/10.1016/0584-8539(82)80070-6
Correcher V., Garcia-Guinea J., Bustillo M.A., Garcia R. (2009) Study of the thermoluminescence emission of a natural α-cristobalite. Radiation Effects & Defects in Solids, 164, 59-67. https://doi.org/10.1080/10420150802270995
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