Descoloração e degradação do azo corante Vermelho GRLX-220 por ozonização

• Published in: Química Nova Vol. 34; no. 8; pp. 1315 - 1322
• Main Authors: Santos, Patrícia Kelly dos, Fernandes, Karla Carvalho, Faria, Luiz Antonio de, Freitas, Admildo Costa de, Silva, Leonardo Morais da
• Format: Journal Article
• Language: English
• Published: Sociedade Brasileira de Química 2011
• Subjects: discoloration and degradation; ozone; semi-batch conditions

The discoloration and degradation of the textile dye RED GRLX-220 using the electrochemically generated ozone was investigated. Total discoloration was rapidly achieved in both acid and basic conditions. A pseudo-first order kinetics was observed for discoloration, influenced by pH and ozonation tim...