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Number of results

Journal

2011 | 9 | 6 | 1000-1007

Article title

Catalytic degradation of methylene blue in aqueous solutions over Ni- and Co- oxide systems

Content

Title variants

Languages of publication

EN

Abstracts

EN
The oxidative catalytic degradation of the cationic dye methylene blue (MB) with NaOCl in aqueous solutions was studied using individual and iron modified Ni- and Co-oxide systems as catalysts. The adsorption extent and the contribution of the uncatalyzed oxidation on the overall degree of MB were determined. The results indicate that methylene blue-a representative of a class of dyestuffs resistant to biodegradation-could be successfully decolorized and degraded using nickel and cobalt oxide catalysts at room temperature. The highest catalytic activity manifests in the Co-oxide system which is consistent with the adsorption data. The oxidative degradation reaction proceeds via first-order kinetics. Temperature has a relatively small effect on the methylene blue degradation kinetics. The results obtained reveal that the catalysts investigated are suitable for oxidative destruction of methytlene blue dye in wastewaters. [...]

Publisher

Journal

Year

Volume

9

Issue

6

Pages

1000-1007

Physical description

Dates

published
1 - 12 - 2011
online
27 - 9 - 2011

Contributors

  • Department of Physical Chemistry, University of Plovdiv, Plovdiv, 4000, Bulgaria
  • Department of Physical Chemistry, University of Plovdiv, Plovdiv, 4000, Bulgaria

References

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Document Type

Publication order reference

Identifiers

YADDA identifier

bwmeta1.element.-psjd-doi-10_2478_s11532-011-0086-7
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