Clay Minerals: Adsorbophysical Properties

Abstract

Abstract. The structure and features of surfaces of clay minerals (kaolin, montmorillonite, etc) have an important scientific and practical value. On the surface the interrelation of processes at electronic, atomic and molecular levels is realized. Availability of mineral surface to external influences opens wide scientific and technical opportunities of use of the surface phenomena, so the research of crystal-chemical and crystal-physical processes in near-surface area of clay minerals is important.After long term researches of gas-clay mineral system in physical fields the author has obtained experimental and theoretical material contributing to the creation of the surface theory of clays. A part of the researches is dedicated to studying the mechanism of crystal-chemical and crystal-physical processes in near surface area of clay mineral systems, selectivity of the surface centers to interact with gas phase molecules and adsorbophysical properties.The study of physical and chemical properties of fine clay minerals and their modification has a decisive importance for development of theory and practice of nanotechnologies: they are sorbents, membranes, ceramics and other materials with required electronic features.

Aluminosilicates: interphase boundary interactions and nature engineering of nanostructures.

“…The most complete information on hydroxyl cover is given by IR-spectroscopy of adsorbed molecules. Our examination [30] and other authors distinguish OH-groups, which atom of oxygen is connected with one, two, three and other atoms of metal, naming them for brevity OHgroups of type I, II, III, etc. "Bridge" OH-groups should be thermally more stable.…”

“…Minerals, under similar conditions with QS = 0, were determined. It is, for example, gold, platinum and diamondsingle-element minerals with dense packing and a high bond energy between atoms (ions) [30].…”

“…From the synthesis of prebiotic organic molecules to modern weathering reactions, to implants in the human body, the interaction of organic species with mineral surfaces in the environment plays an important role. Intersurface reactions include responses to environmental disturbances such as changes in T and P, radiation and physical fields, ionic strength, and surface coating [15,[18][19][20][21][22][23][24][25][26][27][28][29][30].…”

“…We also observe that different products are formed at different temperatures and pressures, which suggests that the boundary is not the only chemical reaction [18][19][20][21][22][23][24][25][26][27][28][29][30]. If we understand the behavior of these parameters, it will be possible to assess the effect of aluminosilicates associated with primitive planetary material on the reaction in various applied tasks.…”

Investigation of ceramic brick rods with blackened materials inside

“…Clays are used also more than 7,000 years [2] to prepare building materials. In spite of the clay minerals are used by thousand years their study and examination are in the focus of research in several segments of science [3][4][5][6][7][8][9][10] and industry [11][12][13][14][15][16][17][18] until today. In our days the brick and ceramic roof tiles industries are the largest user of the conventional brick clays [19][20][21][22][23][24][25][26][27][28][29].…”