Search results for: B. Abramović

Items from 1 to 7 out of 7 results

article

Photocatalytic degradation of alprazolam in water suspension of brookite type TiO2 nanopowders prepared using hydrothermal route

N. Tomić, M. Grujić-Brojčin, N. Finčur, B. Abramović, more

Materials Chemistry and Physics > 2015 > 163 > C > 518-528

Two series of nanocrystalline brookite-type powders have been synthesized by using combined sol–gel–hydrothermal method with titanium tetrachloride (TiCl₄) as a precursor and hydrothermal temperature and reaction time varied in the range of 120–200 °C and 12–48 h, respectively. The effects of chosen synthesis parameters on structural, morphological and optical properties of synthesized powders have...

article

Synthesis of pure and La-doped anatase nanopowders by sol–gel and hydrothermal methods and their efficiency in photocatalytic degradation of alprazolam

A. Golubović, N. Tomić, N. Finčur, B. Abramović, more

Ceramics International > 2014 > 40 > 8 Part B > 13409- 13418

Pure and La ³⁺ doped titanium dioxide (TiO ₂ ) nanopowders were obtained by sol–gel and hydrothermal methods. A precursor was titanium tetrachloride and concentrations of dopants were 0.5 and 1.0mol%. Procedures of both methods were the same, up to the last part of synthesis (the transformation from the mother liquor to oxide nanopowders), in order to find the influence of applied...

article

Surface modification of sol–gel synthesized TiO2 nanoparticles induced by La-doping

M. Grujić-Brojčin, S. Armaković, N. Tomić, B. Abramović, more

Materials Characterization > 2014 > 88 > Complete > 30-41

The influence of La-doping in the range of 0.5–6.0mol% on structural and morphological properties of TiO ₂ nanopowders synthesized by sol–gel routine has been investigated by XRPD, AFM, EDS and BET measurements, as well as Raman spectroscopy. The XRPD and Raman measurements have revealed the anatase phase as dominant in all nanopowders, with crystallite size decreasing from ~15nm in pure TiO...

article

Improved efficiency of sol–gel synthesized mesoporous anatase nanopowders in photocatalytic degradation of metoprolol

A. Golubović, B. Abramović, M. Šćepanović, M. Grujić-Brojčin, more

Materials Research Bulletin > 2013 > 48 > 4 > 1363-1371

The structural and morphological properties of mesoporous anatase nanopowders, synthesized by sol–gel method, have been modified by varying the duration of calcination, in order to obtain more efficient photocatalyst than Degussa P25 in the degradation of relatively large pollutant molecules (>1nm in size). According to X-ray diffraction analysis, the crystallite size was increased from 13 to 17...

article

Degradation of thiamethoxam and metoprolol by UV, O3 and UV/O3 hybrid processes: Kinetics, degradation intermediates and toxicity

D. Šojić, V. Despotović, D. Orčić, E. Szabó, more

Journal of Hydrology > 2012 > 472-473 > Complete > 314-327

A comprehensive study of the degradation of thiamethoxam (THIA) and metoprolol (MET) was conducted by using UV-induced photolysis (λ=254nm), ozonation, and a combination of these methods. In order to investigate how molecular structure of the substrate influences the rate of its degradation, we compared these three processes for the insecticide THIA and the drug MET (a β ₁ -blocker). Of the...

article

Photocatalytic removal of the insecticide fenitrothion from water sensitized with TiO ₂

A. Topalov, D. Molnár-Gábor, B. Abramović, S. Korom, more

Journal of Photochemistry & Photobiology, A: Chemistry > 2003 > 160 > 3 > 195-201

The photocatalytic removal of the insecticide fenitrothion (IUPAC name: O,O-dimethyl O-4-nitro-m-tolyl phosphorothioate), C ₉ H ₁ ₂ NO ₅ PS, from water suspension of TiO ₂ , was investigated by following the disappearance of the original substance along with the formation and disappearance of intermediates via recording NMR ( ¹ H and ³ ¹ P) and...

article

Photocatalytic oxidation of the herbicide (4-chloro-2-methylphenoxy)acetic acid (MCPA) over TiO ₂

A. Topalov, B. Abramović, D. Molnár-Gábor, J. Csanádi, more

Journal of Photochemistry & Photobiology, A: Chemistry > 2001 > 140 > 3 > 249-253

The photocatalytic decomposition of the herbicide (4-chloro-2-methylphenoxy)acetic acid (MCPA), C ₉ H ₉ ClO ₃ , in aqueous suspensions containing TiO ₂ was investigated by following the formation of intermediates via recording proton NMR spectra. One of theoretically possible intermediates, 4-chloro-2-methylphenolmethanoate, was synthesized by a modified esterification...

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Journal of Photochemistry & Photobiology, A: Chemistry (2)
Ceramics International (1)
Journal of Hydrology (1)
Materials Characterization (1)
Materials Chemistry and Physics (1)
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Search results for: B. Abramović

Photocatalytic degradation of alprazolam in water suspension of brookite type TiO2 nanopowders prepared using hydrothermal route

Synthesis of pure and La-doped anatase nanopowders by sol–gel and hydrothermal methods and their efficiency in photocatalytic degradation of alprazolam

Surface modification of sol–gel synthesized TiO2 nanoparticles induced by La-doping

Improved efficiency of sol–gel synthesized mesoporous anatase nanopowders in photocatalytic degradation of metoprolol

Degradation of thiamethoxam and metoprolol by UV, O3 and UV/O3 hybrid processes: Kinetics, degradation intermediates and toxicity

Photocatalytic removal of the insecticide fenitrothion from water sensitized with TiO 2

Photocatalytic oxidation of the herbicide (4-chloro-2-methylphenoxy)acetic acid (MCPA) over TiO 2

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Photocatalytic removal of the insecticide fenitrothion from water sensitized with TiO ₂

Photocatalytic oxidation of the herbicide (4-chloro-2-methylphenoxy)acetic acid (MCPA) over TiO ₂