Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials
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Nanostructures of rare-earth metals in the coals of the shubarkol deposit

V.M. Yurov1, D.A. Ibragimova2, V.S. Portnov1, A.D. Mausymbayeva1

1 Karaganda Technical University
2 JSC «Shubarkol Komir»

DOI: 10.26456/pcascnn/2022.14.736

Original article

Abstract: The rare metals of the Shubarkol coal deposit have a surface layer thickness of about 3 nm, i.e. are nanostructures. The thickness of the surface layer of the coal itself is of about 0,2 µm, i.e. it is a mesostructure. The pore radius in the coal substance is 30,6 nm, which corresponds to mesopores, and the specific surface area of coal is 857 m2/g. Rare metals, either in the form of pure impurities (~ 3 nm), or in the form of oxides (~ 7 nm), or in the form of organic impurities (~ 1-3 nm), freely enter into mesopores of the coal. The forms of occurrence of uranium and rare metals in the coals of the Shubarkol deposit indicate that their concentration in the coal is due to the leading role of the hydrogenous mechanism. In the d(I) layer, all rare metals are nanoluminophores, which can be considered as sensitive molecular probes for studying the structure of coal. It is emphasized that the influence of size effects on kinetics of the luminescence decay and anomalous thermalization of rare earths can be easily obtained experimentally. The fractal dimension of Shubarkol coal is 2,60, which is lower than that of anthracite – 2,74. In the mesoporous structure of Shubarkol coal, the adsorption of rare metal impurities is highly developed due to the formation of adsorption layers on the surface of these mesopores, which lead to volumetric filling of these pores by mechanism of the capillary condensation.

Keywords: surface layer, rare metal, nanostructure, mesostructure, atomic volume, size effect, carbon matter, fractal

  • Viktor M. Yurov – Ph. D., Associate Professor, Deposits of minerals Department, Karaganda Technical University
  • Dinara A. Ibragimova – employee, JSC «Shubarkol Komir»
  • Vasily S. Portnov – Dr. Sc., Professor, Deposits of minerals Department, Karaganda Technical University
  • Aliya D. Mausymbayeva – Ph. D., Associate Professor, Deposits of minerals Department, Karaganda Technical University

Reference:

Yurov, V.M. Nanostructures of rare-earth metals in the coals of the shubarkol deposit / V.M. Yurov, D.A. Ibragimova, V.S. Portnov, A.D. Mausymbayeva // Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials. — 2022. — I. 14. — P. 736-746. DOI: 10.26456/pcascnn/2022.14.736. (In Russian).

Full article (in Russian): download PDF file

References:

1. Khasanov R.R., Gafurov Sh.Z., Islamov A.F. Rare earth elements in the visean coal seams of the Volga-Ural region, Uchenye Zapiski Kazanskogo Universiteta. Seriya Estestvennye Nauki [Scientific Notes of Kazan University. Natural Sciences], 2010, vol. 152, part 4, pp. 116-122. (In Russian).
2. Arbuzov S.I., Vergunov A.V., Ilyenok S.S. et al. Geokhimiya, mineralogiya i genezis redkometall'no-ugol'nogo mestorozhdeniya v plaste XI na yuge Kuznetskogo bassejna [Geochemistry, mineralogy and genesis of rare-metal coal deposit in the seam XI, southern part of the Kuznetsk basin], Geosfernye issledovaniya [Geosphere Research], 2019, no. 2, pp. 35-61. DOI: 10.17223/25421379/11/3. (In Russian)
3. Arbuzov S.I., Il'enok S.S., Maslov S.G. et al. Modes of occurrence of rare-earth elements (La, Ce, Sm, Eu, Tb, Yb, Lu) in coals of northern asia (review), Solid Fuel Chemistry, 2019, vol. 53, no. 1, pp. 1-21. DOI: 10.3103/S0361521919010026.
4. Safonov A.A., Mausymbaeva A.D., Portnov V.S. et al. Mikrokomponentnyj sostav uglej Tsentral'nogo Kazakhstana [Microscopic compound of central Kazakhstan coal], Ugol' [Coal], 2018, no. 9, pp. 89-94. DOI: 10.18796/0041-5790-2018-9-70-75. (In Russian).
5. Yurov V.M., Guchenko S.A., Laurinas V.Ch. Tolshchina poverkhnostnogo sloya, poverkhnostnaya energiya i atomnyj ob"em elementa [Thickness of the surface layer, surface energy and atomic volume of the element], Fiziko-khimicheskie aspekty izucheniya klasterov, nanostruktur i nanomaterialov [Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials], 2018, issue 10, pp. 691-699. DOI: 10.26456/pcascnn/2018.10.691. (In Russian).
6. Yurov V.M. Tolshchina poverkhnostnogo sloya atomarno-gladkikh kristallov [Thickness of the surface layer of atomic-smooth crystals], Fiziko-khimicheskie aspekty izucheniya klasterov, nanostruktur i nanomaterialov [Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials], 2019, issue 11, pp. 389-397. (In Russian). DOI: 10.26456/pcascnn/2019.11.389.
7. Yurov V.M., Makhanov K.M., Portnov V.S. Nanostruktury v tonkom sloe ugol'nogo veshchestva [Nanostructures in the thin layer of coal substance] Fiziko-khimicheskie aspekty izucheniya klasterov, nanostruktur i nanomaterialov [Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials], 2020, issue 12, pp. 746-757. DOI: 10.26456/pcascnn/2020.12.746.
8. Yurov V.M.,Goncharenko V.I., Oleshko V.S., Sha M. Аnisotropy of the surface of carbon materials, Eurasian Physical Technical Journal, 2021, vol. 18, no. 3 (37) ,pp. 15-24. DOI: 10.31489/2021Ph3/101-114.
9. Dubinin M.M. Kapillyarnye yavleniya i informatsiya o poristoj strukture adsorbentov, Sovremennaya teoriya kapillyarnosti [Capillary phenomena and information about the porous structure of adsorbents, Modern theory of capillarity], ed. by A.I. Rusanov and F.Ch. Gudrich. – Leningrad, Khimiya Publ., 1980, pp. 102-125. (In Russian).
10. Jasieńko S., Biegańska C. The properties and structure of carbonization and activation products of vitrites from hard coals of different rank, 12-th Biennial Conference on Carbon: extended abstracts and program, July 1975, Pittsburg, Pennsylvania, The University of Pittsburgh, 1975, p. 83.
11. Ettinger I.L., Shulman N.V., Kogan V.S., Breslavets K.G. Izmeneniya v poristoj strukture iskopaemykh uglej pri ikh laboratornoj i prirodnoj karbonizatsii [Changes in the porous structure of fossil coals during their laboratory and natural carbonization], Khimiya tvyordogo topliva [Solid Fuel Chemistry], 1974, no. 3, pp. 37-47. (In Russian).
12. Deng H., Sun P.Z., Zhang Y.J., Zhu H.W. Application of graphene-based materials in water treatment: mass transport and pollutants adsorption properties, Chinese Journal, 2015, vol. 60, issue 33, pp. 3196-3209. DOI: 10.1360/N972015-00709.
13. Moskalets M.V. Osnovy mezoskopicheskoj fiziki [Fundamentals of mesoscopic physics], Kharkiv, National Technical University – «Kharkiv Polytechnic Institute» Publ., 2010, 180 p. (In Russian).
14. Kutolin S.A. Fizicheskaya khimiya mezostruktury [Physical chemistry of the mesostructure], Novosibirsk, Chem. Lab. NCD Publ., 2015, 104 p. (In Russian).
15. Tauson V.L., Babkin D.N., Pastushkova T.M. et al. Dualistic distribution coefficients of trace elements in the system mineral–hydrothermal solution. iii. precious metals (Au and Pd) in magnetite and manganmagnetite, Geochemistry International, 2016, vol. 54, issue 2, pp. 149-166. DOI: 10.1134/S0016702916020063.
16. Bazhukova I.N., Pustovarov V.A., Myshkina A.V., Ulitko M.V. Luminescent nanomaterials doped with rare earth ions and prospects for their biomedical applications (a review), Optics and Spectroscopy, 2020, vol. 128, issue 12, pp. 2050-2068. DOI: 10.1134/S0030400X20120875.
17. Chen X., Liu Y., Tu D. Lanthanide-doped luminescent nanomaterials. Berlin, Heidelberg, Springer-Verlag, 2014, XI, 208 p. DOI: 10.1007/978-3-642-40364-4.
18. Fenelonov V.B. Poristyj uglerod [Porous carbon]. Novosibirsk, Novosibirsk State University Publ., 1995, 518 p. (In Russian).
19. Mishchenko S.V., Tkachev A.G. Uglerodnye nanomaterialy. Proizvodstvo, svojstva, primenenie [Carbon nanomaterials. Production, properties, application]. - Moscow: Mashinostroenie Publ., 2008, 320 p. (In Russian).
20. Makarov P.V., Smolin I.Yu., Stefanov Yu.P. et al. Nelinejnaya mekhanika geomaterialov i geosred [Nonlinear mechanics of geomaterials and geomedia]. Novosibirsk, Academic Publishing House «Geo», 2007, 235 p. (In Russian).
21. Mukhin V.M., Klushin V.N. Proizvodstvo i primenenie uglerodnykh adsorbentov [Production and application of carbon adsorbents]. – Moscow, Mendeleev University of Chemical Technology of Russia Publ., 2012, 308 p. (In Russian).
22. Oborin V.A., Bayandin Y.V., Bilalov D.A. et al. Self-similar patterns of damage development and reliability assessment of AMg6 and D16T aluminum alloys under consecutive dynamic and gigacycle loading // Physical Mesomechanics, 2019, vol. 22, issue 2, pp. 141-151. DOI: 10.1134/S1029959919020048.

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