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Photocatalytic oxidation mechanism of methanol and the other reactants in irradiated TiO2 aqueous suspension investigated by OH radical detection
http://hdl.handle.net/10649/00000989
http://hdl.handle.net/10649/00000989f52751ab-4f00-4a9e-9ea0-8d621d6563f6
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
ACB166-32ZJ3 (869.3 kB)
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| アイテムタイプ | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2019-03-04 | |||||
| タイトル | ||||||
| タイトル | Photocatalytic oxidation mechanism of methanol and the other reactants in irradiated TiO2 aqueous suspension investigated by OH radical detection | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Reaction mechanism | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | OH radical | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | TiO2 photocatalysis | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Methanol | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Trapped holes | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| 著者 |
Zhang, Jie
× Zhang, Jie× Nosaka, Yoshio |
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| 著者所属 | ||||||
| 値 | 長岡技術科学大学工学研究科エネルギー・環境工学専攻 | |||||
| 著者所属 | ||||||
| 値 | 長岡技術科学大学物質・材料系 | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The oxidation reaction mechanisms of organic additives, such as alcohols (MeOH and EtOH) and inorganic ions (I-, Br-and SCN-) in photocatalysis were elucidated by a fluorescence probe method by employing coumarin and coumarin-3-carboxy acid as fluorescence probes. The general scheme of the oxidation and probing of OH radicals with coumarin was proposed. For the inorganic ions the photocatalytic oxidization was found to take place through OH radicals while for the organic molecules the oxidization should proceed by the exertion of the holes trapped on the TiO2 surface. This is supported by the fact that the quantum efficiency of the CO2 formation by MeOH oxidation was about ten times larger than that of the OH radical formation. The OH radicals in solution are most probably in equilibrium with the trapped holes, and the equilibrium constant could be estimated to be about 0.014 by assuming the diffusion controlled reaction of MeOH with trapped holes. | |||||
| 書誌情報 |
Applied Catalysis B: Environmental 巻 166-167, p. 32-36, 発行日 2015 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0926-3373 | |||||
| 著者版フラグ | ||||||
| 出版タイプ | AM | |||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
| 出版者 | ||||||
| 出版者 | Elsevier | |||||
| 資源タイプ | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | Article | |||||
| URI | ||||||
| 識別子 | https://doi.org/10.1016/j.apcatb.2014.11.006 | |||||
| 識別子タイプ | DOI | |||||
