Elongated titania nanostructures as efficient photocatalysts for degradation of selected herbicides
No Thumbnail
Authors
Vranješ, MilaŠaponjić, Zoran
Živković, Ljiljana
Despotović, Vesna N.
Šojić, Daniela V.
Abramović, Biljana F.
Čomor, Mirjana
Article (Published version)
Metadata
Show full item recordAbstract
Titanium dioxide nanotubes (TNT) were synthesized via hydrothermal method and calcined at various temperatures. The obtained calcined TiO2 nanomaterials with specific elongation orientation were characterized by transmission and scanning electron microscopy (TEM, SEM), X-ray diffraction (XRD), UV/Vis diffuse reflection spectroscopy (DRS), Laser Doppler electrophoresis (LDE) and their textural properties were evaluated. The photocatalytic activity of obtained nanopowders was evaluated considering photodegradation rate of herbicide clomazone, rarely studied herbicide. The influence of calcination temperature of catalysts with elongated morphology on their photocatalytic activity was evaluated. The best results were obtained with TNT annealed at 700 degrees C, which can be assigned to the best balance between crystal structure, morphology and surface properties of nanoparticles induced by annealing. Also, the photocatalytic degradation rates of another two herbicides (picloram, and mecopr...op) were compared, due to possibility that the efficiency of photo catalytic degradation is greatly influenced by the molecular structure. The mineralization degree of selected herbicides in the presence of TiO2 based photocatalysts was evaluated applying total organic carbon (TOC) measurements. (C) 2014 Elsevier B.V. All rights reserved.
Keywords:
Titania nanotubes / Hydrothermal synthesis / Annealing / Herbicides / PhotocatalysisSource:
Applied Catalysis. B: Environmental, 2014, 160, 589-596Funding / projects:
- Materials of Reduced Dimensions for Efficient Light Harvesting and Energy conversion (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45020)
- Size-, shape- and structure- dependent properties of nanoparticles and nanocomposites (RS-MESTD-Basic Research (BR or ON)-172056)
- Development of Methods of Monitoring and Removal of Biologically Actives Substances Aimed at Improving the Quality of the Environment (RS-MESTD-Basic Research (BR or ON)-172042)
- COST Action [CM 1101]
DOI: 10.1016/j.apcatb.2014.06.005
ISSN: 0926-3373; 1873-3883
WoS: 000340687900064
Scopus: 2-s2.0-84903530765
Collections
Institution/Community
VinčaTY - JOUR AU - Vranješ, Mila AU - Šaponjić, Zoran AU - Živković, Ljiljana AU - Despotović, Vesna N. AU - Šojić, Daniela V. AU - Abramović, Biljana F. AU - Čomor, Mirjana PY - 2014 UR - https://vinar.vin.bg.ac.rs/handle/123456789/75 AB - Titanium dioxide nanotubes (TNT) were synthesized via hydrothermal method and calcined at various temperatures. The obtained calcined TiO2 nanomaterials with specific elongation orientation were characterized by transmission and scanning electron microscopy (TEM, SEM), X-ray diffraction (XRD), UV/Vis diffuse reflection spectroscopy (DRS), Laser Doppler electrophoresis (LDE) and their textural properties were evaluated. The photocatalytic activity of obtained nanopowders was evaluated considering photodegradation rate of herbicide clomazone, rarely studied herbicide. The influence of calcination temperature of catalysts with elongated morphology on their photocatalytic activity was evaluated. The best results were obtained with TNT annealed at 700 degrees C, which can be assigned to the best balance between crystal structure, morphology and surface properties of nanoparticles induced by annealing. Also, the photocatalytic degradation rates of another two herbicides (picloram, and mecoprop) were compared, due to possibility that the efficiency of photo catalytic degradation is greatly influenced by the molecular structure. The mineralization degree of selected herbicides in the presence of TiO2 based photocatalysts was evaluated applying total organic carbon (TOC) measurements. (C) 2014 Elsevier B.V. All rights reserved. T2 - Applied Catalysis. B: Environmental T1 - Elongated titania nanostructures as efficient photocatalysts for degradation of selected herbicides VL - 160 SP - 589 EP - 596 DO - 10.1016/j.apcatb.2014.06.005 ER -
@article{ author = "Vranješ, Mila and Šaponjić, Zoran and Živković, Ljiljana and Despotović, Vesna N. and Šojić, Daniela V. and Abramović, Biljana F. and Čomor, Mirjana", year = "2014", abstract = "Titanium dioxide nanotubes (TNT) were synthesized via hydrothermal method and calcined at various temperatures. The obtained calcined TiO2 nanomaterials with specific elongation orientation were characterized by transmission and scanning electron microscopy (TEM, SEM), X-ray diffraction (XRD), UV/Vis diffuse reflection spectroscopy (DRS), Laser Doppler electrophoresis (LDE) and their textural properties were evaluated. The photocatalytic activity of obtained nanopowders was evaluated considering photodegradation rate of herbicide clomazone, rarely studied herbicide. The influence of calcination temperature of catalysts with elongated morphology on their photocatalytic activity was evaluated. The best results were obtained with TNT annealed at 700 degrees C, which can be assigned to the best balance between crystal structure, morphology and surface properties of nanoparticles induced by annealing. Also, the photocatalytic degradation rates of another two herbicides (picloram, and mecoprop) were compared, due to possibility that the efficiency of photo catalytic degradation is greatly influenced by the molecular structure. The mineralization degree of selected herbicides in the presence of TiO2 based photocatalysts was evaluated applying total organic carbon (TOC) measurements. (C) 2014 Elsevier B.V. All rights reserved.", journal = "Applied Catalysis. B: Environmental", title = "Elongated titania nanostructures as efficient photocatalysts for degradation of selected herbicides", volume = "160", pages = "589-596", doi = "10.1016/j.apcatb.2014.06.005" }
Vranješ, M., Šaponjić, Z., Živković, L., Despotović, V. N., Šojić, D. V., Abramović, B. F.,& Čomor, M.. (2014). Elongated titania nanostructures as efficient photocatalysts for degradation of selected herbicides. in Applied Catalysis. B: Environmental, 160, 589-596. https://doi.org/10.1016/j.apcatb.2014.06.005
Vranješ M, Šaponjić Z, Živković L, Despotović VN, Šojić DV, Abramović BF, Čomor M. Elongated titania nanostructures as efficient photocatalysts for degradation of selected herbicides. in Applied Catalysis. B: Environmental. 2014;160:589-596. doi:10.1016/j.apcatb.2014.06.005 .
Vranješ, Mila, Šaponjić, Zoran, Živković, Ljiljana, Despotović, Vesna N., Šojić, Daniela V., Abramović, Biljana F., Čomor, Mirjana, "Elongated titania nanostructures as efficient photocatalysts for degradation of selected herbicides" in Applied Catalysis. B: Environmental, 160 (2014):589-596, https://doi.org/10.1016/j.apcatb.2014.06.005 . .