Determination of the Extinction Coefficient of Carbon Monoxide Adsorbed on Titanium Dioxide

被引：2

作者：

Bulanin, K. M. ^{[1
,2
]}

Mikheleva, A. Yu ^{[2
]}

Shchepkin, D. N. ^{[3
]}

Rudakova, A., V ^{[2
]}

机构：

[1] St Petersburg State Univ, Dept Photon, St Petersburg 198504, Russia

[2] St Petersburg State Univ, Lab Photoact Nanocomposite Mat, St Petersburg 198504, Russia

[3] St Petersburg State Univ, Dept Mol Spect, St Petersburg 198504, Russia

来源：

OPTICS AND SPECTROSCOPY | 2022年 / 130卷 / 04期

基金：

俄罗斯基础研究基金会;

关键词：

carbon(II) oxide; titanium dioxide; extinction coefficient; adsorption; IR spectroscopy; volumetry; IR SPECTROSCOPY; OXIDE SURFACES; CO ADSORPTION; ACID SITES; ZEOLITES; QUANTIFICATION; TIO2(110); INTENSITY; CLUSTER; PROBE;

D O I：

10.1134/S0030400X2204004X

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Adsorption of carbon monoxide on a TiO2 (anatase) surface at room temperature has been studied by IR spectroscopy and volumetry. The obtained experimental data indicate weak adsorption of CO molecules on an exponentially inhomogeneous surface. It is established that adsorption enthalpy decreases according to the logarithmic law with a coverage increase in the range of 0.002-0.03. Values of the extinction coefficient of adsorbed CO for a heterogeneous CO/TiO2 system are calculated using the Bouguer-Lambert-Beer law and taking into account the Lorentz field correction. The validity conditions of the Bouguer-Lambert-Beer law for studying heterogeneous systems are described.

引用

页码：248 / 256

页数：9

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