Elongated titania nanostructures as efficient photocatalysts for degradation of selected herbicides

Čomor, Mirjana I. ; Vranješ, Mila ; et al.

In: Applied Catalysis B: Environmental, 2014-11-01, S. 589-596

Online unknown

Zugriff:

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.

Titel:	Elongated titania nanostructures as efficient photocatalysts for degradation of selected herbicides
Autor/in / Beteiligte Person:	Čomor, Mirjana I. ; Vranješ, Mila ; Despotović, Vesna N. ; Šojić, Daniela V. ; Abramović, Biljana F. ; Živković, Ljiljana ; Šaponjić, Zoran
Link:	View record in OpenAIRE (Volltext) E-Journal im Bestand der UB Hagen? https://doi.org/10.1016/j.apcatb.2014.06.005
Zeitschrift:	Applied Catalysis B: Environmental, 2014-11-01, S. 589-596
Veröffentlichung:	Elsevier BV, 2014
Medientyp:	unknown
ISSN:	0926-3373 (print)
DOI:	10.1016/j.apcatb.2014.06.005
Schlagwort:	Materials science Scanning electron microscope Inorganic chemistry Nanoparticle 02 engineering and technology 010402 general chemistry 01 natural sciences Catalysis Annealing law.invention Nanomaterials chemistry.chemical_compound law Hydrothermal synthesis Calcination Photocatalysis Photodegradation General Environmental Science Herbicides Process Chemistry and Technology Titania nanotubes 021001 nanoscience & nanotechnology 0104 chemical sciences Chemical engineering chemistry 13. Climate action Titanium dioxide 0210 nano-technology
Sonstiges:	Nachgewiesen in: OpenAIRE Rights: RESTRICTED

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