Composition, structure, and sorbability of the thermally treated water deironing precipitate with respect to carbon monoxide

This work deals with studying the composition, structure, and sorbability of the water deironing precipitate sample thermally treated at 850 °C (WDP-850) with respect to carbon monoxide. ing to the data of X-ray fluorescence (XRF) spectroscopy, WDP-850 contains 44.14% of iron, 6.29% of silicon, and 34.78% of oxygen. sults of X-ray diffraction (XRD) analysis indicate the presence of Fe2O3, Fe3O4, and SiO2 nanocrystallites (~ 11.4, 30.6, and 8.0%, respectively). udies performed via the temperature-programmed desorption of CO show that WDP-850 can sorb carbon monoxide at 25 and 200 °C. mposition and structure of the precipitate sample obtained after CO adsorption at 200 °C (WDP-850-CO) have also been studied. ing to XRD data, nearly 9.3% of the silicon carbide (SiC) phase with the moissaniteʹs structure has appeared in the material. C phase is supposed to result from the dissociative adsorption of CO on the surface of WDP-850. been concluded that WDP can be used as a base for the synthesis of functional materials, for example, CO sorbents.