Now showing items 1-10 of 398
Characterization of electrodes chemically modified with Mn(III) porphyrin/polypyrrole films as catalytic surfaces for an azo dye
(Soc Porphyrins & Phthalocyanines, 2006-01-01)
In this study we describe the electrochemical behavior of 5,10,15,20-tetrakis(2'-aminophenylporphyrin)manganese(III) chloride supported on a glassy carbon electrode, as well as the electrochemical preparation and ...
Applicability of the equations of Freundlich and Langmuir to the adsorption of the azo dye procion scarlet on paramorphic colonies of Neurospora crassa.
Experiments on the adsorption of Procion Scarlet MX-G by normal hyphae and by paramorphic colonies of Neurospora crassa were performed at pH 2.5, 4.5 and 6.5 at 30 degrees C. The measured adsorption isotherms were evaluated ...
Photobleaching effect in azo-dye containing epoxy resin films: The potentiality of carbon nanotubes as azo-dye dispensers
(Institute of Physics Publishing, 2015-04)
Azo-dye molecules may suffer from bleaching under certain illumination conditions. When this photoinduced process occurs, it generates an irreversible effect that is characterized by the loss of absorption of the dye ...
Azo Dye Acid Blue 29: Biosorption and Phytotoxicity Test
Many products contain dyes, such as fabrics. However, most of the industry-generated waste is improperly handled, which causes serious environmental problems for the bodies of water that receive textile effluents. This ...
Assessment of by-products of chlorination and photoelectrocatalytic chlorination of an azo dye
(Elsevier B.V., 2012-02-29)
The present work describes a more efficient methodology for the chlorination of water containing disperse dyes, where the chlorinated byproducts identified by mass spectra are compared. this investigation, we tested the ...
Prepara????o de pigmentos h??bridos a partir de corantes azo e compostos do tipo hidrotalcita
(Instituto de Qu??micaPrograma de P??s Gradua????o em Qu??micaIQbrasil, 2016-09-06)
Induction of chromosome aberrations in the Allium cepa test system caused by the exposure of seeds to industrial effluents contaminated with azo dyes
Numerous potentially mutagenic chemicals have been studied mainly because they can cause damaging and inheritable changes in the genetic material. Several tests are commonly used for biomonitoring pollution levels and to ...
Identification of Sudan III-(deoxy)-guanosine adducts formed in situ in a reaction with no catalyst
(Taylor & Francis Ltd, 2013-10-01)
Incubation of guanosine and Sudan III induces the formation of a stable adduct, which may be identified using a spectrophotometric technique and mass spectroscopy. The high nucleophilicity of the C-8 position and its ...