Water Science and Technology 2001-01-01

Semiconductor-mediated photocatalysed degradation of two selected pesticide derivatives, terbacil and 2,4,5-tribromoimidazole, in aqueous suspension.

M Muneer, D Bahnema

文献索引：Water Sci. Technol. 44(5) , 331-7, (2001)

全文：HTML全文

摘要

The photocatalysed degradation of two selected pesticide derivatives, namely 3-tert-butyl-5-chloro-6-methyluracil (terbacil) and 2,4,5-tribromoimidazole (TBI) has been investigated in aqueous suspensions of titanium dioxide (TiO2) under a variety of conditions employing a pH-stat technique. The degradation was studied by monitoring the change in substrate concentration of the model compound employing HPLC analysis, and the decrease in total organic carbon (TOC) content, respectively, as a function of irradiation time. The degradation kinetics were studied under different conditions such as reaction pH, substrate and photocatalyst concentration, type of TiO2 photocatalyst and the presence of alternative additives such as H2O2, KBrO3 and (NH4)2S2O8 besides molecular oxygen. The degradation rates and the photonic efficiencies were found to be strongly influenced by the above parameters. Toxicity tests for the irradiated samples of the pesticide derivatives measuring the luminescence of bacteria Vibrio fischeri after 30 minutes of incubation were also performed.

相关化合物

  • 甲醇中特草定
  • 2,4,5-三溴咪唑

相关文献：

Electrically driven microseparation methods for pesticides and metabolites. II: on-line and off-line preconcentration of urea herbicides in capillary electrochromatography.

1999-09-01

[Electrophoresis 20(12) , 2337-42, (1999)]

Development and validation of a rapid and wide-scope qualitative screening method for detection and identification of organic pollutants in natural water and wastewater by gas chromatography time-of-flight mass spectrometry.

2011-01-14

[J. Chromatogr. A. 1218(2) , 303-15, (2011)]

Gas chromatographic method for determination of uracil herbicides in roots of Echinacea angustifolia Moench (Asteraceae).

1998-01-01

[J. Pharm. Biomed. Anal. 16(5) , 753-8, (1998)]

Combination of solid-phase extraction and field-amplified concentration for trace analysis of organonitrogen pesticides by micellar electrokinetic chromatography.

1997-10-01

[Electrophoresis 18(11) , 2036-41, (1997)]

Behaviour and quantification studies of terbacil and lenacil in environmental samples using cyclic and adsorptive stripping voltammetry at hanging mercury drop electrode.

2007-05-01

[Environ. Monit. Assess. 128(1-3) , 359-68, (2007)]

更多文献...