Abstract
One of the methods of activation and modification to improve quality characteristics of raw materials is a thermal treatment that was used for property improvement of clay materials in this work. For this purpose the treatment thermal interval of 500–600 °С, allowing getting the material with stable properties when thermal treatment and high adsorptive activity was used.
The goal of this work is to study the mechanism of the processes occurring in these polymineral systems and contributing to positive changes in properties. According to X-ray and IR-spectroscopy analyses data for samples exposed to treatment at the temperature of 500 °C the transformation of the crystal structure of layered aluminosilicates, mainly kaolinite as 2D-nanoparticles into the frame aluminosilicates of zeolite group – 3D-nano-objects, in particularly, faujasite with size of crystallites about 80 nm (according to the X-ray analysis) is performed.
The change in the particles shape is observed: bonded clay minerals transfer to isometric formations, typical to minerals of zeolite group.
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Acknowledgements
The research work is accomplished under the financial support from Ministry of Education and Science of Russian Federation in framework of State Assignment № 11.1550.2014 K; Russian Fond of Fundamental research, agreement № 14-41-08024.
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Lebedev, M., Zhernovsky, I., Strokova, V. (2015). Effect of Heat Treatment on Phase Compositions of Clay Aluminosilicates. In: Sobolev, K., Shah, S. (eds) Nanotechnology in Construction. Springer, Cham. https://doi.org/10.1007/978-3-319-17088-6_15
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DOI: https://doi.org/10.1007/978-3-319-17088-6_15
Publisher Name: Springer, Cham
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Online ISBN: 978-3-319-17088-6
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