Oxidative Synthesis of Acid Blue 7 Dye Catalyzed by CuO/Silicotungstic Acid in Water-Phase

A catalytic oxidation reaction for Acid Blue 7 dye synthesis was evaluated in water. Without lead oxide or manganese oxide derivatives as oxidants, polyoxometalate catalysts were investigated to reduce the usage of harmful heavy metal. A catalyst was prepared by mixing silicotungstic acid with coppe...

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Detalles Bibliográficos
Autores principales: Nomoto, Akihiro, Okada, Tomoya, Yamamoto, Yuki, Kuroda, Shota, Marui, Kuniaki, Yamamoto, Mika, Tsujimoto, Hidetaka, Ueshima, Michio, Nishigahana, Tamotsu, Itoh, Keiji, Kobata, Gohei, Kodama, Shintaro, Ogawa, Akiya
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8400946/
https://www.ncbi.nlm.nih.gov/pubmed/34443027
http://dx.doi.org/10.3390/ma14164505
Descripción
Sumario:A catalytic oxidation reaction for Acid Blue 7 dye synthesis was evaluated in water. Without lead oxide or manganese oxide derivatives as oxidants, polyoxometalate catalysts were investigated to reduce the usage of harmful heavy metal. A catalyst was prepared by mixing silicotungstic acid with copper oxide, and aqueous hydrogen peroxide (30%) was used as an oxidizing agent. This reaction proceeded to produce Acid Blue 7 from the corresponding leuco acid after 45 min at 95 °C and was viable for a 10 g-scale synthesis.

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