The influence of the addition of carbon spheres on photoactivity of TiO2 and ZnO in CO2 reduction process
Ładowanie...
Data
2023-09-09
Tytuł czasopisma
ISSN czasopisma
Tytuł tomu
Wydawca
Elsevier
Abstrakt
The development of an effective photocatalyst for CO2 reduction is currently being addressed by many scientists.
This study concerns the influence of the addition of carbon spheres (CS) on photoactivity of TiO2 and ZnO. The
photocatalysts were tested in a liquid phase system in an alkaline environment. The suspensions of the tested
materials were irradiated with UV–Vis light for 6 h. Then, the amount of the obtained products in the gas phase
was analysed by gas chromatography. The identified products of CO2 photoreduction were hydrogen, carbon
monoxide, and methane. Based on the results, it was found that CS/TiO2 and CS/ZnO showed similar activity in
carbon dioxide reduction processes, however, more product amounts were obtained in experiments with the use
of CS/TiO2 materials. The addition of carbon spheres to titanium dioxide improved its activity in carbon monoxide
production. The maximum photoactivity of CS/TiO2 was observed for the addition of 0.1 g of CS. On the
other hand, in the case of CS/ZnO materials, carbon spheres did not positively affect their performance.
Nevertheless, their activity increased with the CS amount.
Opis
Słowa kluczowe
Photocatalysis, Carbon spheres, Titanium dioxide, Zinc oxide, Carbon dioxide
Cytowanie
Morawski, A.W., et al. (2023). The influence of the addition of carbon spheres on photoactivity of TiO2 and ZnO in CO2 reduction process. Journal of CO2 Utilization, 75, 102553. doi 10.1016/j.jcou.2023.102553.