Synergetic effect in water treatment with mesoporous TiO(2)/BDD hybrid electrode

Boron-doped diamond (BDD) electrodes have a wide potential window and can produce ozone by water electrolysis at high voltage. Though ozone has strong oxidative power (standard oxidation potential: 2.07 V vs. NHE), it cannot decompose certain types of recalcitrant organic matter completely. We devel...

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Detalles Bibliográficos
Autores principales: Suzuki, Norihiro, Okazaki, Akihiro, Kuriyama, Haruo, Serizawa, Izumi, Hirami, Yuki, Hara, Aiga, Hirano, Yuiri, Nakabayashi, Yukihiro, Roy, Nitish, Terashima, Chiaki, Nakata, Kazuya, Katsumata, Ken-ichi, Kondo, Takeshi, Yuasa, Makoto, Fujishima, Akira
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2020
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9047568/
https://www.ncbi.nlm.nih.gov/pubmed/35494675
http://dx.doi.org/10.1039/c9ra10318j
Descripción
Sumario:Boron-doped diamond (BDD) electrodes have a wide potential window and can produce ozone by water electrolysis at high voltage. Though ozone has strong oxidative power (standard oxidation potential: 2.07 V vs. NHE), it cannot decompose certain types of recalcitrant organic matter completely. We developed an advanced oxidation process (AOP), in which hydroxy radicals with stronger oxidative power (standard oxidation potential: 2.85 V vs. NHE) are formed using a combination of ozone, photocatalyst, and UV. In this study, we fabricated a mesoporous TiO(2)/BDD hybrid electrode and examined its potential for AOPs. A synergetic effect between electrochemical water treatment and photocatalytic water treatment was observed with the hybrid electrode that did not occur with the BDD electrode.

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