CO2 photoreduction is studied using in-house synthesized undoped and N-doped TiO2 nanoparticle photocatalysts. Comparison with the commercial P25 TiO2 powder shows that the synthesized samples are more effective. P25 produced a negligible amount of CH4, unlike the synthesized samples. N-doping of TiO2 powder caused a higher productivity rate of all products, and provided the best performance for CO2 reduction. The average production rate of CH4 was 0.191 mu mol h(-1) g(-1), whereas that of CO was 0.111 mu mol h(-1) g(-1). The experimental data are used to fit the micro-kinetic modelling parameters. The kinetic constant of H2O dissociation is the lowest for all tested samples, revealing that this is the rate-determining step. The kinetic constants for the H-2, CO, and CH4 formation were of the same order for all catalyst samples, showing that the rates of these reactions are independent of the catalyst type.
TY - JOUR
AU - Bjelajac, Anđelika
AU - Kopac, Drejc
AU - Fecant, Antoine
AU - Tavernier, Eugenie
AU - Petrović, Rada
AU - Likozar, Blaž
AU - Janaćković, Đorđe
PY - 2020
UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4466
AB - CO2 photoreduction is studied using in-house synthesized undoped and N-doped TiO2 nanoparticle photocatalysts. Comparison with the commercial P25 TiO2 powder shows that the synthesized samples are more effective. P25 produced a negligible amount of CH4, unlike the synthesized samples. N-doping of TiO2 powder caused a higher productivity rate of all products, and provided the best performance for CO2 reduction. The average production rate of CH4 was 0.191 mu mol h(-1) g(-1), whereas that of CO was 0.111 mu mol h(-1) g(-1). The experimental data are used to fit the micro-kinetic modelling parameters. The kinetic constant of H2O dissociation is the lowest for all tested samples, revealing that this is the rate-determining step. The kinetic constants for the H-2, CO, and CH4 formation were of the same order for all catalyst samples, showing that the rates of these reactions are independent of the catalyst type.
PB - Royal Soc Chemistry, Cambridge
T2 - Catalysis Science & Technology
T1 - Micro-kinetic modelling of photocatalytic CO2 reduction over undoped and N-doped TiO2
EP - 1698
IS - 6
SP - 1688
VL - 10
DO - 10.1039/c9cy02443c
ER -
@article{
author = "Bjelajac, Anđelika and Kopac, Drejc and Fecant, Antoine and Tavernier, Eugenie and Petrović, Rada and Likozar, Blaž and Janaćković, Đorđe",
year = "2020",
abstract = "CO2 photoreduction is studied using in-house synthesized undoped and N-doped TiO2 nanoparticle photocatalysts. Comparison with the commercial P25 TiO2 powder shows that the synthesized samples are more effective. P25 produced a negligible amount of CH4, unlike the synthesized samples. N-doping of TiO2 powder caused a higher productivity rate of all products, and provided the best performance for CO2 reduction. The average production rate of CH4 was 0.191 mu mol h(-1) g(-1), whereas that of CO was 0.111 mu mol h(-1) g(-1). The experimental data are used to fit the micro-kinetic modelling parameters. The kinetic constant of H2O dissociation is the lowest for all tested samples, revealing that this is the rate-determining step. The kinetic constants for the H-2, CO, and CH4 formation were of the same order for all catalyst samples, showing that the rates of these reactions are independent of the catalyst type.",
publisher = "Royal Soc Chemistry, Cambridge",
journal = "Catalysis Science & Technology",
title = "Micro-kinetic modelling of photocatalytic CO2 reduction over undoped and N-doped TiO2",
pages = "1698-1688",
number = "6",
volume = "10",
doi = "10.1039/c9cy02443c"
}
Bjelajac, A., Kopac, D., Fecant, A., Tavernier, E., Petrović, R., Likozar, B.,& Janaćković, Đ.. (2020). Micro-kinetic modelling of photocatalytic CO2 reduction over undoped and N-doped TiO2. in Catalysis Science & Technology
Royal Soc Chemistry, Cambridge., 10(6), 1688-1698.
https://doi.org/10.1039/c9cy02443c
Bjelajac A, Kopac D, Fecant A, Tavernier E, Petrović R, Likozar B, Janaćković Đ. Micro-kinetic modelling of photocatalytic CO2 reduction over undoped and N-doped TiO2. in Catalysis Science & Technology. 2020;10(6):1688-1698.
doi:10.1039/c9cy02443c .
Bjelajac, Anđelika, Kopac, Drejc, Fecant, Antoine, Tavernier, Eugenie, Petrović, Rada, Likozar, Blaž, Janaćković, Đorđe, "Micro-kinetic modelling of photocatalytic CO2 reduction over undoped and N-doped TiO2" in Catalysis Science & Technology, 10, no. 6 (2020):1688-1698,
https://doi.org/10.1039/c9cy02443c . .
