Oxidative Synthesis of Acid Blue 7 Dye Catalyzed by CuO/Silicotungstic Acid in Water-Phase
| Autor: | Keiji Itoh, Tomoya Okada, Yuki Yamamoto, Akihiro Nomoto, Shintaro Kodama, Akiya Ogawa, Tamotsu Nishigahana, Michio Ueshima, Mika Yamamoto, Kuniaki Marui, Hidetaka Tsujimoto, Shota Kuroda, Gohei Kobata |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Copper oxide
Technology Silicotungstic acid Article Catalysis chemistry.chemical_compound Oxidizing agent General Materials Science Hydrogen peroxide Microscopy QC120-168.85 Aqueous solution QH201-278.5 triarylmethane Engineering (General). Civil engineering (General) TK1-9971 Catalytic oxidation chemistry Descriptive and experimental mechanics Polyoxometalate silicotungstic acid Electrical engineering. Electronics. Nuclear engineering TA1-2040 acid blue 7 Nuclear chemistry catalytic oxidation |
| Zdroj: | Materials, Vol 14, Iss 4505, p 4505 (2021) Materials Volume 14 Issue 16 |
| ISSN: | 1996-1944 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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