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The DOI matches its Crossref record; 36 of the 36 references it cites were found in a registry or an index.

Comparison of ultraviolet radiation/hydrogen peroxide, Fenton and photo-Fenton processes for the decolorization of reactive dyes

Radovic, Miljana, Mitrovic, Jelena, Kostic, Milos, Bojic, Danijela, Petrovic, Milica, Najdanovic, Slobodan, Bojic, Aleksandar·2015·Hemijska industrija
DOI 10.2298/hemind140905088r
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Abstract

The effectivness of UV/H2O2 process, Fenton and photo-Fenton process at decolorization of commercially important textile dyes Reactive Orange 4 (RO4) and Reactive Blue 19 (RB19) was evaluated. The effect of operational condition such as initial pH, initial H2O2 concentration, initial Fe2+ concentration and initial dye concentration on decolorization of RO4 and RB19 was studied. The photo-Fenton process is found to be more efficient than UV/H2O2 and Fenton process for decolorization of simulated dye bath effluent and solutions of the dyes in water alone under optimum conditions. In simulated dye bath the removal efficiency was slightly lower than for the solutions of the dyes in water alone for both dyes types. The results revealed that the tested advanced oxidation processes were very effective for decolorization of RO4 and RB19 in aqueous solution.

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Figures

Fig. 1 The changes in UV-Vis spectrum of RO4 and RB19 in UV/H2O2 process after: a) 0, b) 2, c) 4, d) 10 and e) 20 min.
Fig. 1 The changes in UV-Vis spectrum of RO4 and RB19 in UV/H2O2 process after: a) 0, b) 2, c) 4, d) 10 and e) 20 min.CC-BY · From the PDF
Fig. 2 Effect of UV/H2O2 process on decolorization of RO4 and RB19. [dye]0 = 50 mg dm -3 , [H2O2]0 = 25 mmol dm -3 , initial pH 7, UV radiation intensity 730 μW cm -2 , temperature 25.0±0.5 ° C. Inset shows the relation between removal efficiency and illumination time.
Fig. 2 Effect of UV/H2O2 process on decolorization of RO4 and RB19. [dye]0 = 50 mg dm -3 , [H2O2]0 = 25 mmol dm -3 , initial pH 7, UV radiation intensity 730 μW cm -2 , temperature 25.0±0.5 ° C. Inset shows the relation between removal efficiency and illumination time.CC-BY · From the PDF
Fig. 3 Effect of initial peroxide concentration on the rate of decolorization of RO4 and RB19 by UV/H2O2 process. [dye]0 = = 50 mg dm -3 , initial pH 7, UV radiation intensity 730 μW cm -2 , temperature 25.0 ± 0.5 ° C.
Fig. 3 Effect of initial peroxide concentration on the rate of decolorization of RO4 and RB19 by UV/H2O2 process. [dye]0 = = 50 mg dm -3 , initial pH 7, UV radiation intensity 730 μW cm -2 , temperature 25.0 ± 0.5 ° C.CC-BY · From the PDF
Fig. 4 Effect of pH on the rate of decolorization of RO4 and RB19 by UV/H2O2 process. [dye]0 = 50 mg dm -3 , [H 2 O2]0 = 25 mmol dm -3 , UV radiation intensity 730 μW cm -2 , temperature 25.0±0.5 ° C.
Fig. 4 Effect of pH on the rate of decolorization of RO4 and RB19 by UV/H2O2 process. [dye]0 = 50 mg dm -3 , [H 2 O2]0 = 25 mmol dm -3 , UV radiation intensity 730 μW cm -2 , temperature 25.0±0.5 ° C.CC-BY · From the PDF
Fig. 5 Effect of initial dye concentration on the removal efficiency of RO4 and RB19 by UV/H2O2 process. [H2O2]0 = 25 mmol dm -3 , initial pH 7, UV radiation intensity 730 μW cm -2 , temperature 25.0±0.5 ° C. Inset shows the relation between decolorization rate and initial dye concentration.
Fig. 5 Effect of initial dye concentration on the removal efficiency of RO4 and RB19 by UV/H2O2 process. [H2O2]0 = 25 mmol dm -3 , initial pH 7, UV radiation intensity 730 μW cm -2 , temperature 25.0±0.5 ° C. Inset shows the relation between decolorization rate and initial dye concentration.CC-BY · From the PDF
Fig. 6 Effect of initial Fe 2+ concentration on the rate of decolorization of RO4 and RB19. [dye]0 = 50 mg dm -3 , [H 2 O2]0 = 25 mmol dm -3 , UV radiation intensity 730 μW cm -2 , temperature 25.0±0.5 ° C.
Fig. 6 Effect of initial Fe 2+ concentration on the rate of decolorization of RO4 and RB19. [dye]0 = 50 mg dm -3 , [H 2 O2]0 = 25 mmol dm -3 , UV radiation intensity 730 μW cm -2 , temperature 25.0±0.5 ° C.CC-BY · From the PDF
Fig. 7 Effect of initial peroxide concentration on the rate of decolorization of RO4 and RB19 by Fenton and photo-Fenton processes. [dye]0 = 50 mg dm -3 , [Fe 2+ ]0 = 0.1 mmol dm -3 , UV radiation intensity 730 μW cm -2 , temperature 25.0±0.5 ° C.
Fig. 7 Effect of initial peroxide concentration on the rate of decolorization of RO4 and RB19 by Fenton and photo-Fenton processes. [dye]0 = 50 mg dm -3 , [Fe 2+ ]0 = 0.1 mmol dm -3 , UV radiation intensity 730 μW cm -2 , temperature 25.0±0.5 ° C.CC-BY · From the PDF
Fig. 8 Effect of initial dye concentration on the removal efficiency of RO4 and RB19 by Fenton and photo-Fenton processes. [H2O2]0 = 25 mmol dm -3 , [Fe 2+ ]0 = 0.1 mmol dm -3 , UV radiation intensity 730 μW cm -2 , temperature 25.0±0.5 ° C.
Fig. 8 Effect of initial dye concentration on the removal efficiency of RO4 and RB19 by Fenton and photo-Fenton processes. [H2O2]0 = 25 mmol dm -3 , [Fe 2+ ]0 = 0.1 mmol dm -3 , UV radiation intensity 730 μW cm -2 , temperature 25.0±0.5 ° C.CC-BY · From the PDF
Fig. 9 Comparison of removal efficiency of RO4 and RB19 by UV/H2O2, Fenton and photo-Fenton processes.
Fig. 9 Comparison of removal efficiency of RO4 and RB19 by UV/H2O2, Fenton and photo-Fenton processes.CC-BY · From the PDF

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Research works printed but not linked: 1

  1. G.V. Buxton, C.L. Greenstock, W.P. Helman, A.B. Ross, Critical review of rate constants of hydrated electrons, hydrogen atoms and hydroxyl radicals (AOH/AO -) in aqueous solution, J. Phys. Chem. Ref. Data 17 (1988) 513-886.

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Metadata

Authors
Radovic, M., Mitrovic, J., Kostic, M., Bojic, D., Petrovic, M., Najdanovic, S., & Bojic, A.
Venue
Hemijska industrija
Publisher
National Library of Serbia
Published
2015
Volume
69
Issue
6
Pages
657-665
ISSN
  • 0367-598X
  • 2217-7426
DOI
10.2298/hemind140905088r
Cited by
20
References
36
Language
en
Licence
creativecommons.org/licenses/by/4.0/ (unspecified)
Funders
Ministry of Education, Science and Technological Development of the Republic of Serbia (TR34008)

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Radovic, M., Mitrovic, J., Kostic, M., Bojic, D., Petrovic, M., Najdanovic, S., & Bojic, A. (2015). Comparison of ultraviolet radiation/hydrogen peroxide, Fenton and photo-Fenton processes for the decolorization of reactive dyes. Hemijska industrija. https://doi.org/10.2298/hemind140905088r

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