Oxygen Atoms Exchange Between Carbon Dioxide and TiO2 (Light Induced and Spontaneous)
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One of the exceptional features of CO2 is its ability to interact with solid surfaces on a common basis. This interaction takes the form of an adsorption and can be monitored by isotope labelling. Oxygen isotope-labelled CO2 added to a mineral, most importantly TiO2, exchanges its oxygen atoms with the sample and the changing isotopic composition can be monitored by high-resolution Fourier transform infrared spectroscopy.