Gamma Radiolysis Studies of Aqueous Solution of Brilliant Green Dye

The effect of γ–radiation on colour intensity of aqueous solution of Brilliant Green has been investigated at two different concentrations. The degradation of Brilliant Green (BG) has also been investigated in presence of suspended ZnO, by adding different amounts of ZnO. Simultaneously the conducta...

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Main Authors: D. V. Parwate, S. S. Mankar
Format: Article
Language:English
Published: Wiley 2011-01-01
Series:E-Journal of Chemistry
Online Access:http://dx.doi.org/10.1155/2011/984142
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author D. V. Parwate
S. S. Mankar
author_facet D. V. Parwate
S. S. Mankar
author_sort D. V. Parwate
collection DOAJ
description The effect of γ–radiation on colour intensity of aqueous solution of Brilliant Green has been investigated at two different concentrations. The degradation of Brilliant Green (BG) has also been investigated in presence of suspended ZnO, by adding different amounts of ZnO. Simultaneously the conductance and pH of each solution system were measured before and after γ-irradiation. All the γ–irradiations were performed at a dose rate of 0.60 kGyhr-1 in GC-900. The maximum dose required for the complete degradation of the dye was found to be 0.39 kGy. G(-dye) values were found to decrease with increase in gamma dose and were in the range 4.26 - 12.81. The conductance (7.6 - 25.3 μS) and pH values increased marginally with dose for both the concentrations. The rate of decolouration was found to be high at lower doses and the efficiency of dye removal was higher at low concentration of the dye. This may be attributed to the presence of reaction by-products from the destruction of parent compound build up and compete for reaction intermediate species. The rate of reaction and rate constants were calculated and it was found that the degradation reaction follows first order kinetics. It was found that the decolouration percentage was more in dye systems in absence of ZnO.
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spelling doaj-art-067ef6ecd2f0434c90d3d082484b06902025-02-03T01:07:48ZengWileyE-Journal of Chemistry0973-49452090-98102011-01-018268068410.1155/2011/984142Gamma Radiolysis Studies of Aqueous Solution of Brilliant Green DyeD. V. Parwate0S. S. Mankar1Department of Chemistry, Rashtrasant Tukadoji, Maharaj Nagpur University, Nagpur-440 033, IndiaDepartment of Chemistry, Rashtrasant Tukadoji, Maharaj Nagpur University, Nagpur-440 033, IndiaThe effect of γ–radiation on colour intensity of aqueous solution of Brilliant Green has been investigated at two different concentrations. The degradation of Brilliant Green (BG) has also been investigated in presence of suspended ZnO, by adding different amounts of ZnO. Simultaneously the conductance and pH of each solution system were measured before and after γ-irradiation. All the γ–irradiations were performed at a dose rate of 0.60 kGyhr-1 in GC-900. The maximum dose required for the complete degradation of the dye was found to be 0.39 kGy. G(-dye) values were found to decrease with increase in gamma dose and were in the range 4.26 - 12.81. The conductance (7.6 - 25.3 μS) and pH values increased marginally with dose for both the concentrations. The rate of decolouration was found to be high at lower doses and the efficiency of dye removal was higher at low concentration of the dye. This may be attributed to the presence of reaction by-products from the destruction of parent compound build up and compete for reaction intermediate species. The rate of reaction and rate constants were calculated and it was found that the degradation reaction follows first order kinetics. It was found that the decolouration percentage was more in dye systems in absence of ZnO.http://dx.doi.org/10.1155/2011/984142
spellingShingle D. V. Parwate
S. S. Mankar
Gamma Radiolysis Studies of Aqueous Solution of Brilliant Green Dye
E-Journal of Chemistry
title Gamma Radiolysis Studies of Aqueous Solution of Brilliant Green Dye
title_full Gamma Radiolysis Studies of Aqueous Solution of Brilliant Green Dye
title_fullStr Gamma Radiolysis Studies of Aqueous Solution of Brilliant Green Dye
title_full_unstemmed Gamma Radiolysis Studies of Aqueous Solution of Brilliant Green Dye
title_short Gamma Radiolysis Studies of Aqueous Solution of Brilliant Green Dye
title_sort gamma radiolysis studies of aqueous solution of brilliant green dye
url http://dx.doi.org/10.1155/2011/984142
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