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Efficient degradation of selected polluting dyes using the tetrahydroxoargentate ion, Ag(OH)4-, in alkaline media.
Zamora-Garcia, Ileana R; Alatorre-Ordaz, Alejandro; Ibanez, Jorge G; Torres-Elguera, Julio C; Wrobel, Kazimierz; Gutierrez-Granados, Silvia.
Afiliação
  • Zamora-Garcia IR; Departamento de Quimica, Unidad Pueblito de Rocha, Campus Guanajuato, Universidad de Guanajuato, Cerro de la Venada s/n, Col. Pueblito de Rocha, CP 36040, Guanajuato, Mexico.
  • Alatorre-Ordaz A; Departamento de Quimica, Unidad Pueblito de Rocha, Campus Guanajuato, Universidad de Guanajuato, Cerro de la Venada s/n, Col. Pueblito de Rocha, CP 36040, Guanajuato, Mexico. Electronic address: alatorre@ugto.mx.
  • Ibanez JG; Depto. de Ing. y Ciencias Quimicas, Centro Mexicano de Quimica Verde y Microescala, Universidad Iberoamericana-Ciudad de Mexico, Prol. Reforma 880, 01219, Mexico City, Mexico.
  • Torres-Elguera JC; Departamento de Quimica, Unidad Pueblito de Rocha, Campus Guanajuato, Universidad de Guanajuato, Cerro de la Venada s/n, Col. Pueblito de Rocha, CP 36040, Guanajuato, Mexico.
  • Wrobel K; Departamento de Quimica, Unidad Pueblito de Rocha, Campus Guanajuato, Universidad de Guanajuato, Cerro de la Venada s/n, Col. Pueblito de Rocha, CP 36040, Guanajuato, Mexico.
  • Gutierrez-Granados S; Departamento de Quimica, Unidad Pueblito de Rocha, Campus Guanajuato, Universidad de Guanajuato, Cerro de la Venada s/n, Col. Pueblito de Rocha, CP 36040, Guanajuato, Mexico.
Chemosphere ; 191: 400-407, 2018 Jan.
Article em En | MEDLINE | ID: mdl-29054080
The use of soluble and highly oxidizing Ag(III) in the form of the tetrahydroxoargentate ion Ag(OH)4- is reported for the oxidation of surrogate organic recalcitrant dyes (i.e., rhodamine 6G (Rh6G) and fluorescein (Fl)). The possible use of Ag(OH)4- for the treatment of these and other refractory compounds is assessed. Such dyes were selected due to their common occurrence, stability, refractory nature, the relatively high toxicity of Rh6G, and their structural similarity to Fl. Several reaction intermediates/products were identified. The results showed that the highly oxidizing tetrahydroxoargentate anion was capable of degrading these recalcitrant dyes. Furthermore, the final degradation products do not represent a higher environmental risk than the original surrogates themselves. In addition, the partial mineralization of the dyes was proven.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Prata / Corantes / Poluentes Ambientais Idioma: En Revista: Chemosphere Ano de publicação: 2018 Tipo de documento: Article País de afiliação: México País de publicação: Reino Unido
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Prata / Corantes / Poluentes Ambientais Idioma: En Revista: Chemosphere Ano de publicação: 2018 Tipo de documento: Article País de afiliação: México País de publicação: Reino Unido