The dependence of the photocatalytic activity of TiO2/carbon nanotubes nanocomposites on the modification of the carbon nanotubes
Samo za registrovane korisnike
2014
Autori
Đokić, VeljkoMarinković, Aleksandar
Ersen, Ovidiu
Uskoković, Petar
Petrović, Rada
Radmilović, Velimir R.
Janaćković, Đorđe
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
Nanostructural TiO2/modified multi-wall carbon nanotubes photocatalysts were prepared by hydrolysis of Ti(iso-OC3H7)(4) providing chemical bonding of anatase TiO2 nanoparticles onto oxidized- or amino-functionalized multi-wall carbon nanotubes (MWCNT). The processes of functionalization of the MWCNT and the deposition of TiO2 influence the photocatalytic activity of the synthesized nanocomposites. The phase composition, crystallite size, and the structural and surface properties of the obtained TiO2/modified-MWCNT nanocomposite were analyzed from XRD, FEG-SEM, TEM/HRTEM and FTIR data, as well low temperature N-2 adsorption. In the photocatalytic study, the TiO2/oxidized-MWCNT catalyst showed the highest and the TiO2/amino functionalized-MWCNT catalysts somewhat lower degradation rates, indicating that the enhancement of photocatalysis was supported by the more effective electron transfer properties of the oxygen- than amino-containing functional groups, which support the efficient char...ge transportation and separation of the photogenerated electron-hole pairs.
Ključne reči:
Sol-gel processes / Nanocomposites / TiO2 / Carbon nanotubes / PhotocatalysisIzvor:
Ceramics International, 2014, 40, 3, 4009-4018Izdavač:
- Elsevier Sci Ltd, Oxford
Finansiranje / projekti:
- Reinforcing of Nanotechnology and Functional Materials Centre (EU-245916)
- Reinforcing of Nanotechnology and Functional Materials Centre (EU-245916)
- U.S. Department of EnergyUnited States Department of Energy (DOE) [DE-AC02-05CH11231]
- Sinteza, razvoj tehnologija dobijanja i primena nanostrukturnih multifunkcionalnih materijala definisanih svojstava (RS-45019)
- Razvoj, karakterizacija i primena nanostruktuiranih kompozitnih katalizatora i interaktivnih nosača u gorivnim spregovima i elektrolizi vode (RS-172054)
DOI: 10.1016/j.ceramint.2013.08.052
ISSN: 0272-8842
WoS: 000331017500024
Scopus: 2-s2.0-84891373749
Kolekcije
Institucija/grupa
Tehnološko-metalurški fakultetTY - JOUR AU - Đokić, Veljko AU - Marinković, Aleksandar AU - Ersen, Ovidiu AU - Uskoković, Petar AU - Petrović, Rada AU - Radmilović, Velimir R. AU - Janaćković, Đorđe PY - 2014 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2759 AB - Nanostructural TiO2/modified multi-wall carbon nanotubes photocatalysts were prepared by hydrolysis of Ti(iso-OC3H7)(4) providing chemical bonding of anatase TiO2 nanoparticles onto oxidized- or amino-functionalized multi-wall carbon nanotubes (MWCNT). The processes of functionalization of the MWCNT and the deposition of TiO2 influence the photocatalytic activity of the synthesized nanocomposites. The phase composition, crystallite size, and the structural and surface properties of the obtained TiO2/modified-MWCNT nanocomposite were analyzed from XRD, FEG-SEM, TEM/HRTEM and FTIR data, as well low temperature N-2 adsorption. In the photocatalytic study, the TiO2/oxidized-MWCNT catalyst showed the highest and the TiO2/amino functionalized-MWCNT catalysts somewhat lower degradation rates, indicating that the enhancement of photocatalysis was supported by the more effective electron transfer properties of the oxygen- than amino-containing functional groups, which support the efficient charge transportation and separation of the photogenerated electron-hole pairs. PB - Elsevier Sci Ltd, Oxford T2 - Ceramics International T1 - The dependence of the photocatalytic activity of TiO2/carbon nanotubes nanocomposites on the modification of the carbon nanotubes EP - 4018 IS - 3 SP - 4009 VL - 40 DO - 10.1016/j.ceramint.2013.08.052 ER -
@article{ author = "Đokić, Veljko and Marinković, Aleksandar and Ersen, Ovidiu and Uskoković, Petar and Petrović, Rada and Radmilović, Velimir R. and Janaćković, Đorđe", year = "2014", abstract = "Nanostructural TiO2/modified multi-wall carbon nanotubes photocatalysts were prepared by hydrolysis of Ti(iso-OC3H7)(4) providing chemical bonding of anatase TiO2 nanoparticles onto oxidized- or amino-functionalized multi-wall carbon nanotubes (MWCNT). The processes of functionalization of the MWCNT and the deposition of TiO2 influence the photocatalytic activity of the synthesized nanocomposites. The phase composition, crystallite size, and the structural and surface properties of the obtained TiO2/modified-MWCNT nanocomposite were analyzed from XRD, FEG-SEM, TEM/HRTEM and FTIR data, as well low temperature N-2 adsorption. In the photocatalytic study, the TiO2/oxidized-MWCNT catalyst showed the highest and the TiO2/amino functionalized-MWCNT catalysts somewhat lower degradation rates, indicating that the enhancement of photocatalysis was supported by the more effective electron transfer properties of the oxygen- than amino-containing functional groups, which support the efficient charge transportation and separation of the photogenerated electron-hole pairs.", publisher = "Elsevier Sci Ltd, Oxford", journal = "Ceramics International", title = "The dependence of the photocatalytic activity of TiO2/carbon nanotubes nanocomposites on the modification of the carbon nanotubes", pages = "4018-4009", number = "3", volume = "40", doi = "10.1016/j.ceramint.2013.08.052" }
Đokić, V., Marinković, A., Ersen, O., Uskoković, P., Petrović, R., Radmilović, V. R.,& Janaćković, Đ.. (2014). The dependence of the photocatalytic activity of TiO2/carbon nanotubes nanocomposites on the modification of the carbon nanotubes. in Ceramics International Elsevier Sci Ltd, Oxford., 40(3), 4009-4018. https://doi.org/10.1016/j.ceramint.2013.08.052
Đokić V, Marinković A, Ersen O, Uskoković P, Petrović R, Radmilović VR, Janaćković Đ. The dependence of the photocatalytic activity of TiO2/carbon nanotubes nanocomposites on the modification of the carbon nanotubes. in Ceramics International. 2014;40(3):4009-4018. doi:10.1016/j.ceramint.2013.08.052 .
Đokić, Veljko, Marinković, Aleksandar, Ersen, Ovidiu, Uskoković, Petar, Petrović, Rada, Radmilović, Velimir R., Janaćković, Đorđe, "The dependence of the photocatalytic activity of TiO2/carbon nanotubes nanocomposites on the modification of the carbon nanotubes" in Ceramics International, 40, no. 3 (2014):4009-4018, https://doi.org/10.1016/j.ceramint.2013.08.052 . .