Iron Porphyrins as Biomimetical Models for Disperse Azo Dye Oxidation
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چکیده
منابع مشابه
Iron Porphyrins as Biomimetical Models for Disperse Azo Dye Oxidation
As ferroporfirinas comerciais cloreto de 5,10,15,20-tetraquis-(4-carboxifenil) porfirinaferro(III), cloreto de 5,10,15,20-tetraquis-(N-metil-4-piridil)porfirinaferro(III) e cloreto de 5,10,15,20-tetraquis-(2,3,4,5,6-pentafluorofenil)porfirinaferro(III) foram investigadas como modelo do citocromo P450 na oxidação dos azo corantes Disperse Black 3 (DB3), Disperse Orange 3 (DO3) e Methyl Yellow (M...
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Evidence that the reticulo-endothelial system (R.E.S.) may be involved in the carcinogenic proc ess has been presented by Stern and Willheim (22) and by Jaffe (11). This system has also been im plicated in the metabolism of certain fat-soluble materials such as Vitamin A (3,10,17) and choles terol (3, 23) and the water-soluble vitamin, riboflavin (2, 9, 10). Since riboflavin is a factor in the ...
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A yellow, alkali-clearable azo disperse dye containing a carboxylic ester moiety was readily synthesized from the reactant p-aminobenzoic acid by successive diazotization, coupling reaction, chlorination and esterification with ethanol. Then its molecular structure was characterized by FTIR, H NMR, C NMR, mass spectrometry and elemental analysis. The synthesized dye and a similar control dye co...
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Three water-soluble cobalt porphyrins have been investigated as water oxidation catalysts via photo-initiation using Ru(II)(bpy)3(2+)/Na2S2O8. The pH dependence of the turnover frequency revealed maximum activity at pH 11. Based on the second order dependence on catalyst concentration for the rate of water oxidation, we suggest a bimolecular radical coupling process as the rate determining step.
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In the present study, advanced oxidation treatment, UV/ was applied to decolourisation of Acid Orange 8 (AO8). The UV radiation was carried out with a 15 W low-pressure mercury lamp. Kinetic model for the decolourisation of the dye was developed based on experimental results and known chemical and photochemical reactions. The observed kinetic reaction constant was determined and correlated as a...
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ژورنال
عنوان ژورنال: Journal of the Brazilian Chemical Society
سال: 2013
ISSN: 0103-5053
DOI: 10.5935/0103-5053.20130110