degradação de corantes ácidos por processos oxidativos avançados usando um reator com disco rotatório de baixa velocidade acid dyes degradation by advanced oxidation processes using a low-speed rotating disk reactor

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ID: 228536
2008
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Abstract
Three technologies were tested (TiO2/UV, H2O2/UV, and TiO2/H2O2/UV) for the degradation and color removal of a 25 mg L-1 mixture of three acid dyes: Blue 9, Red 18, and Yellow 23. A low speed rotating disc reactor (20 rpm) and a H2O2 concentration of 2.5 mmol L-1 were used. The dyes did not significantly undergo photolysis, although they were all degraded by the studied advanced oxidation processes. With the TiO2/H2O2/UV process, a strong synergism was observed (color removal reached 100%). Pseudo first order kinetic constants were estimated for all processes, as well as the respective apparent photonic efficiencies.
Reference Key
vianna2008qumicadegradao Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Vilson Bedim Vianna;Alexandre Rodrigues Tôrres;Eduardo Bessa Azevedo
Journal greece and rome
Year 2008
DOI
10.1590/S0100-40422008000600015
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422008000600015
Keywords
dyes tio2

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