Photocatalytic degradation of alprazolam in water suspension of brookite type TiO2 nanopowders prepared using hydrothermal route
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2015
Authors
Tomić, N.Grujić-Brojčin, Mirjana

Finčur, Nina L.

Abramović, Biljana F.

Simovic, B
Krstić, Jugoslav

Matović, Branko

Scepanovic, M

Article (Published version)

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Two series of nanocrystalline brookite-type powders have been synthesized by using combined sal gel hydrothermal method with titanium tetrachloride (TiCI4) as a precursor and hydrothermal temperature and reaction time varied in the range of 120-200 degrees C and 12-48 h, respectively. The effects of chosen synthesis parameters on structural, morphological and optical properties of synthesized powders have been investigated by the XRPD, SEM, EDS and BET measurements, as well Raman spectroscopy and spectroscopic ellipsometry. The XRPD results have shown that pure brookite phase, with mean crystallite size of -33 nm, has been obtained only in the sample synthesized at 200 degrees C, after 24 h of hydrothermal process. In all other samples anatase phase also appears, whereas rutile and sodium titanate phases have been noticed in the samples synthesized at lower temperatures. The presence of different titania phases has also been confirmed and analyzed by Raman scattering measurements. The ...SEM measurements have shown spindle-like particles in brookite-rich samples synthesized at 200 degrees C, whereas BET measurements have detected mesoporous structure in these samples. The properties of synthesized powders have been correlated to their photocatalytic efficiency, tested in degradation of alprazolam, one of the 5th generation benzodiazepines. The sample consisted of pure brookite has shown the highest efficiency in the photodegradation of alprazolam, practically equal to the activity of Degussa P25.
Keywords:
Oxides / Nanostructures / Sol-gel growth / Raman spectroscopy and scattering / Optical propertiesSource:
Materials Chemistry and Physics, 2015, 163, 518-528Publisher:
- Elsevier Science Sa, Lausanne
Funding / projects:
- Nanostructured multifunctional materials and nanocomposites (RS-45018)
- Physics of nanostructured oxide materials and strongly correlated systems (RS-171032)
- Development of Methods of Monitoring and Removal of Biologically Actives Substances Aimed at Improving the Quality of the Environment (RS-172042)
- SASA project - F-134
DOI: 10.1016/j.matchemphys.2015.08.008
ISSN: 0254-0584
WoS: 000365361500062
Scopus: 2-s2.0-84940462429
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IHTMTY - JOUR AU - Tomić, N. AU - Grujić-Brojčin, Mirjana AU - Finčur, Nina L. AU - Abramović, Biljana F. AU - Simovic, B AU - Krstić, Jugoslav AU - Matović, Branko AU - Scepanovic, M PY - 2015 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/1794 AB - Two series of nanocrystalline brookite-type powders have been synthesized by using combined sal gel hydrothermal method with titanium tetrachloride (TiCI4) as a precursor and hydrothermal temperature and reaction time varied in the range of 120-200 degrees C and 12-48 h, respectively. The effects of chosen synthesis parameters on structural, morphological and optical properties of synthesized powders have been investigated by the XRPD, SEM, EDS and BET measurements, as well Raman spectroscopy and spectroscopic ellipsometry. The XRPD results have shown that pure brookite phase, with mean crystallite size of -33 nm, has been obtained only in the sample synthesized at 200 degrees C, after 24 h of hydrothermal process. In all other samples anatase phase also appears, whereas rutile and sodium titanate phases have been noticed in the samples synthesized at lower temperatures. The presence of different titania phases has also been confirmed and analyzed by Raman scattering measurements. The SEM measurements have shown spindle-like particles in brookite-rich samples synthesized at 200 degrees C, whereas BET measurements have detected mesoporous structure in these samples. The properties of synthesized powders have been correlated to their photocatalytic efficiency, tested in degradation of alprazolam, one of the 5th generation benzodiazepines. The sample consisted of pure brookite has shown the highest efficiency in the photodegradation of alprazolam, practically equal to the activity of Degussa P25. PB - Elsevier Science Sa, Lausanne T2 - Materials Chemistry and Physics T1 - Photocatalytic degradation of alprazolam in water suspension of brookite type TiO2 nanopowders prepared using hydrothermal route VL - 163 SP - 518 EP - 528 DO - 10.1016/j.matchemphys.2015.08.008 ER -
@article{ author = "Tomić, N. and Grujić-Brojčin, Mirjana and Finčur, Nina L. and Abramović, Biljana F. and Simovic, B and Krstić, Jugoslav and Matović, Branko and Scepanovic, M", year = "2015", abstract = "Two series of nanocrystalline brookite-type powders have been synthesized by using combined sal gel hydrothermal method with titanium tetrachloride (TiCI4) as a precursor and hydrothermal temperature and reaction time varied in the range of 120-200 degrees C and 12-48 h, respectively. The effects of chosen synthesis parameters on structural, morphological and optical properties of synthesized powders have been investigated by the XRPD, SEM, EDS and BET measurements, as well Raman spectroscopy and spectroscopic ellipsometry. The XRPD results have shown that pure brookite phase, with mean crystallite size of -33 nm, has been obtained only in the sample synthesized at 200 degrees C, after 24 h of hydrothermal process. In all other samples anatase phase also appears, whereas rutile and sodium titanate phases have been noticed in the samples synthesized at lower temperatures. The presence of different titania phases has also been confirmed and analyzed by Raman scattering measurements. The SEM measurements have shown spindle-like particles in brookite-rich samples synthesized at 200 degrees C, whereas BET measurements have detected mesoporous structure in these samples. The properties of synthesized powders have been correlated to their photocatalytic efficiency, tested in degradation of alprazolam, one of the 5th generation benzodiazepines. The sample consisted of pure brookite has shown the highest efficiency in the photodegradation of alprazolam, practically equal to the activity of Degussa P25.", publisher = "Elsevier Science Sa, Lausanne", journal = "Materials Chemistry and Physics", title = "Photocatalytic degradation of alprazolam in water suspension of brookite type TiO2 nanopowders prepared using hydrothermal route", volume = "163", pages = "518-528", doi = "10.1016/j.matchemphys.2015.08.008" }
Tomić, N., Grujić-Brojčin, M., Finčur, N. L., Abramović, B. F., Simovic, B., Krstić, J., Matović, B.,& Scepanovic, M.. (2015). Photocatalytic degradation of alprazolam in water suspension of brookite type TiO2 nanopowders prepared using hydrothermal route. in Materials Chemistry and Physics Elsevier Science Sa, Lausanne., 163, 518-528. https://doi.org/10.1016/j.matchemphys.2015.08.008
Tomić N, Grujić-Brojčin M, Finčur NL, Abramović BF, Simovic B, Krstić J, Matović B, Scepanovic M. Photocatalytic degradation of alprazolam in water suspension of brookite type TiO2 nanopowders prepared using hydrothermal route. in Materials Chemistry and Physics. 2015;163:518-528. doi:10.1016/j.matchemphys.2015.08.008 .
Tomić, N., Grujić-Brojčin, Mirjana, Finčur, Nina L., Abramović, Biljana F., Simovic, B, Krstić, Jugoslav, Matović, Branko, Scepanovic, M, "Photocatalytic degradation of alprazolam in water suspension of brookite type TiO2 nanopowders prepared using hydrothermal route" in Materials Chemistry and Physics, 163 (2015):518-528, https://doi.org/10.1016/j.matchemphys.2015.08.008 . .