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Photo-catalysis processes in non-regular media

Journal
Chemical Problems
ISSN
2221-8688
2522-1655
Date Issued
2021
Author(s)
Marsagishvili, Tamazi  
Rafael Agladze Institute of Inorganic Chemistry and Electrochemistry  
Tatishvili, G.D.
Rafael Agladze Institute of Inorganic Chemistry and Electrochemistry  
Matchavariani, Marine  
Publisher
Institute of Catalysis and Inorganic Chemistry
DOI
10.32737/2221-8688-2021-1-7-17
URI
https://chemprob.org/wp-content/uploads/2021/01/7-17.pdf
https://openscience.ge/handle/1/8404
Abstract
Technologies that cause the least harm to nature from global warming standpoint are becoming called-for. In this regard, photo-catalysis which uses the solar energy for chemical transformations of substances is of great interest for studying possible mechanisms of such processes. At the same time, the use of photo-catalysis significantly expands capabilities of the synthesis of new organic and inorganic materials. Charge phototransfer is always at the heart of photochemical transformations. Such processes can be considered from the point of view of quantum mechanics, and the probability of various mechanisms of the passing processes can be calculated using the apparatus of Green's functions. Analytical expressions for kinetic parameters of the charge transfer process between polyatomic particles in non-regular condensed medium and expressions for the extinction coefficient for appropriate processes of charge photo-transfer are obtained. Based on the analysis of obtained analytical expressions of dark and optical charge transfer processes, correlations between kinetic parameters of these processes are obtained. A methodology for determining kinetic parameters of the charge photo-transfer process on the basis of the shape of light absorption curve by means of the system functioning as the frequency of absorbed photons in various systems is presented. In this respect the general methodology has been applied to various specific processes. A methodology for determining the kinetic parameters of the charge phototransfer process from the shape of the light absorption curve by the system as a function of the frequency of absorbed photons in various systems is presented. The general methodology presented has been applied to various specific processes.
Subjects

photo-catalysis

photo-transfer

optical spectrum

extinction coefficien...

reorganization energy...

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