Photocatalysis of Coomassie Brilliant Blue Using Clay Mineral

Layane Rodrigues Almeida; João Sammy Nery de Souza; Edson Cavalcanti da Silva Filho; Josy Antoveli Osajima

doi:10.4028/www.scientific.net/MSF.869.765

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Photocatalysis of Coomassie Brilliant Blue Using Clay Mineral
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HomeMaterials Science ForumMaterials Science Forum Vol. 869Photocatalysis of Coomassie Brilliant Blue Using...

Photocatalysis of Coomassie Brilliant Blue Using Clay Mineral

Abstract:

The presence of organic pollutants, which cannot be eliminated by conventional processes of primary and secondary treatment, can be problematic. Photocatalytic processes offer an efficient breakdown of organic pollutants into non-toxic compounds such as CO₂ and H₂O. This paper proposes the use of the titanium dioxide embedded in palygorskite as a photoactive material in the degradation of cationic dye, Coomassie Brilliant Blue. The system was irradiated using UV light for a maximum time of 120 minutes. The concentration of the dye used was 1.0x10^-4mol L^-1 in 0.5 g L^-1 of the photoactive material. The kinetics of the system was monitored by UV-Vis spectrophotometry. In 120 minutes of radiation, the process of photocatalysis reduced the initial concentration of the Coomassie Brilliant Blue dye in half.

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21st Brazilian Conference on Materials Science and Engineering

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Periodical:

Materials Science Forum (Volume 869)

Pages:

765-767

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.869.765

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Online since:

August 2016

Authors:

Layane Rodrigues Almeida*, João Sammy Nery de Souza, Edson Cavalcanti da Silva Filho, Josy Antoveli Osajima

Keywords:

Dye, Palygorskite, Photocatalysis

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