不规则介质中的光催化过程

T. Marsagishvili, G. D. Tatishvili, M. Matchavariani
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引用次数: 0

摘要

从全球变暖的角度来看,对自然危害最小的技术正在被呼吁。在这方面,利用太阳能进行物质化学转化的光催化对于研究这一过程的可能机制具有很大的兴趣。同时,光催化的使用大大扩展了合成新型有机和无机材料的能力。电荷光传递一直是光化学转化的核心。这些过程可以从量子力学的角度来考虑,并且可以使用格林函数装置来计算通过过程的各种机制的概率。得到了非规则凝聚介质中多原子粒子间电荷传递过程动力学参数的解析表达式和适当的电荷光传递过程的消光系数表达式。通过对已得到的暗电荷转移和光电荷转移过程解析表达式的分析,得到了这些过程动力学参数之间的相关关系。提出了一种根据光吸收曲线的形状,利用系统作为各种系统中吸收光子的频率来确定电荷光传递过程动力学参数的方法。在这方面,一般方法已应用于各种具体过程。提出了一种从系统吸收光曲线形状作为各种系统吸收光子频率的函数来确定电荷光传递过程动力学参数的方法。所提出的一般方法已应用于各种具体过程。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
PHOTO-CATALYSIS PROCESSES IN NON-REGULAR MEDIA
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.
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