Influence of Mg doping on structural, optical and photocatalytic performances of ceria nanopowders
Autori
Matović, BrankoLuković, Jelena M.
Stojadinović, Bojan
Aškrabić, Sonja
Zarubica, Aleksandra R.
Babić, Biljana M.
Dohčević-Mitrović, Zorana
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
Nanosized Mg-doped ceria powders were obtained by self-propagating room temperature reaction without using surfactants or templates. X-ray diffraction analysis and field emission scanning microscopy results showed that the doped samples are solid solutions with fluorite-type structure and spherical morphology. Raman spectra revealed an increase in the amount of oxygen vacancies with the increase of Mg concentration. This increasing results in a narrowing of the bandgap of CeO2. The photocatalytic performances of the Mg-doped ceria solid solutions were evaluated by decomposing an organic dye, crystal violet under UV irradiation. The Mg-doped ceria solid solutions exhibit significantly better photocatalytic activity than the pure CeO2 and commercial TiO2. The higher first rate constant of the Mg-doped samples demonstrated that they are much more efficient than TiO2 and CeO2 under UV light. Mg2+ dopant ions and oxygen vacancies play a significant role in the enhancement of photocatalytic ...performances of the Mg-doped ceria.
Ključne reči:
ceria / solid solution / oxygen vacancies / UV light illumination / nanocatalysisIzvor:
Processing and Application of Ceramics, 2017, 11, 4, 304-310Finansiranje / projekti:
- Sinteza, procesiranje i karakterizacija nanostrukturnih materijala za primenu u oblasti energije, mehaničkog inženjerstva, zaštite životne stredine i biomedicine (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45012)
- Fizika nanostrukturnih oksidnih materijala i jako korelisanih sistema (RS-MESTD-Basic Research (BR or ON)-171032)
DOI: 10.2298/PAC1704304M
ISSN: 1820-6131; 2406-1034
WoS: 000419608000009
Scopus: 2-s2.0-85047453282
Kolekcije
Institucija/grupa
VinčaTY - JOUR AU - Matović, Branko AU - Luković, Jelena M. AU - Stojadinović, Bojan AU - Aškrabić, Sonja AU - Zarubica, Aleksandra R. AU - Babić, Biljana M. AU - Dohčević-Mitrović, Zorana PY - 2017 UR - https://vinar.vin.bg.ac.rs/handle/123456789/1905 AB - Nanosized Mg-doped ceria powders were obtained by self-propagating room temperature reaction without using surfactants or templates. X-ray diffraction analysis and field emission scanning microscopy results showed that the doped samples are solid solutions with fluorite-type structure and spherical morphology. Raman spectra revealed an increase in the amount of oxygen vacancies with the increase of Mg concentration. This increasing results in a narrowing of the bandgap of CeO2. The photocatalytic performances of the Mg-doped ceria solid solutions were evaluated by decomposing an organic dye, crystal violet under UV irradiation. The Mg-doped ceria solid solutions exhibit significantly better photocatalytic activity than the pure CeO2 and commercial TiO2. The higher first rate constant of the Mg-doped samples demonstrated that they are much more efficient than TiO2 and CeO2 under UV light. Mg2+ dopant ions and oxygen vacancies play a significant role in the enhancement of photocatalytic performances of the Mg-doped ceria. T2 - Processing and Application of Ceramics T1 - Influence of Mg doping on structural, optical and photocatalytic performances of ceria nanopowders VL - 11 IS - 4 SP - 304 EP - 310 DO - 10.2298/PAC1704304M ER -
@article{ author = "Matović, Branko and Luković, Jelena M. and Stojadinović, Bojan and Aškrabić, Sonja and Zarubica, Aleksandra R. and Babić, Biljana M. and Dohčević-Mitrović, Zorana ", year = "2017", abstract = "Nanosized Mg-doped ceria powders were obtained by self-propagating room temperature reaction without using surfactants or templates. X-ray diffraction analysis and field emission scanning microscopy results showed that the doped samples are solid solutions with fluorite-type structure and spherical morphology. Raman spectra revealed an increase in the amount of oxygen vacancies with the increase of Mg concentration. This increasing results in a narrowing of the bandgap of CeO2. The photocatalytic performances of the Mg-doped ceria solid solutions were evaluated by decomposing an organic dye, crystal violet under UV irradiation. The Mg-doped ceria solid solutions exhibit significantly better photocatalytic activity than the pure CeO2 and commercial TiO2. The higher first rate constant of the Mg-doped samples demonstrated that they are much more efficient than TiO2 and CeO2 under UV light. Mg2+ dopant ions and oxygen vacancies play a significant role in the enhancement of photocatalytic performances of the Mg-doped ceria.", journal = "Processing and Application of Ceramics", title = "Influence of Mg doping on structural, optical and photocatalytic performances of ceria nanopowders", volume = "11", number = "4", pages = "304-310", doi = "10.2298/PAC1704304M" }
Matović, B., Luković, J. M., Stojadinović, B., Aškrabić, S., Zarubica, A. R., Babić, B. M.,& Dohčević-Mitrović, Z.. (2017). Influence of Mg doping on structural, optical and photocatalytic performances of ceria nanopowders. in Processing and Application of Ceramics, 11(4), 304-310. https://doi.org/10.2298/PAC1704304M
Matović B, Luković JM, Stojadinović B, Aškrabić S, Zarubica AR, Babić BM, Dohčević-Mitrović Z. Influence of Mg doping on structural, optical and photocatalytic performances of ceria nanopowders. in Processing and Application of Ceramics. 2017;11(4):304-310. doi:10.2298/PAC1704304M .
Matović, Branko, Luković, Jelena M., Stojadinović, Bojan, Aškrabić, Sonja, Zarubica, Aleksandra R., Babić, Biljana M., Dohčević-Mitrović, Zorana , "Influence of Mg doping on structural, optical and photocatalytic performances of ceria nanopowders" in Processing and Application of Ceramics, 11, no. 4 (2017):304-310, https://doi.org/10.2298/PAC1704304M . .