WEKO3
アイテム
Photocatalytic reduction of CO2 over a hybrid photocatalyst composed of WO3 and graphitic carbon nitride (g-C3N4) under visible light
http://hdl.handle.net/10228/00006544
http://hdl.handle.net/10228/000065440522229b-293f-42af-9b28-0faaa56f63d8
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
JCU6_17.pdf (1.3 MB)
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| アイテムタイプ | 学術雑誌論文 = Journal Article(1) | |||||||||||||||||||||
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| 公開日 | 2018-02-01 | |||||||||||||||||||||
| 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 | |||||||||||||||||||||
| タイトル | ||||||||||||||||||||||
| タイトル | Photocatalytic reduction of CO2 over a hybrid photocatalyst composed of WO3 and graphitic carbon nitride (g-C3N4) under visible light | |||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||
| 言語 | ||||||||||||||||||||||
| 言語 | eng | |||||||||||||||||||||
| 著者 |
横野, 照尚
× 横野, 照尚
WEKO
6794
× 村上, 直也
WEKO
27551
× Koyanagi, Takahiro× Yang, Yin |
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| 抄録 | ||||||||||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||||||||||
| 内容記述 | Graphitic carbon nitride (g-C3N4) has attracted much attention as a metal-free semiconductor having visible light absorption and relatively high chemical stability. g-C3N4 can reduce CO2 to organic fuels such as methanol (CH3OH), formic acid (HCO2H), and methane (CH4) under visible light irradiation. However, oxidation potential of g-C3N4 is not enough for water oxidation. Therefore, we focused on hybridization of g-C3N4 and tungsten(VI) oxide (WO3) which has high oxidation potential for water oxidation. In this study, we examined CO2 reduction by composite photocatalyst of g-C3N4 and WO3, which was prepared by three methods (mixture using an agate mortar, impregnation and planetary mill). As a result, composite photocatalyst prepared with planetary mill showed the highest photocatalytic activity. Photodeposition of silver or gold nanoparticles only on g-C3N4 of the hybrid photocatalyst induced an increase in CH3OH because the loaded metal nanoparticles play an important role in multi-electron reduction of CO2. Photocatalytic activity of the Au-loaded hybrid photocatalyst composed of g-C3N4 and WO3 was 1.7-times higher than that of the hybrid photocatalyst without Au loading. In addition, we investigated photocatalytic reaction mechanism of composite photocatalyst by double-beam photoacoustic spectroscopy. This result revealed Z-scheme reaction proceeds in the composite photocatalyst to maintain high oxidation ability of WO3 and high reduction ability of g-C3N4, resulting in high photocatalytic activity. | |||||||||||||||||||||
| 書誌情報 |
Journal of CO2 Utilization 巻 6, p. 17-25, 発行日 2014-06 |
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| 出版社 | ||||||||||||||||||||||
| 出版者 | Elsevier | |||||||||||||||||||||
| DOI | ||||||||||||||||||||||
| 関連タイプ | isVersionOf | |||||||||||||||||||||
| 識別子タイプ | DOI | |||||||||||||||||||||
| 関連識別子 | https://doi.org/10.1016/j.jcou.2014.02.002 | |||||||||||||||||||||
| ISSN | ||||||||||||||||||||||
| 収録物識別子タイプ | PISSN | |||||||||||||||||||||
| 収録物識別子 | 2212-9820 | |||||||||||||||||||||
| 著作権関連情報 | ||||||||||||||||||||||
| 権利情報 | Copyright (c) 2014 Elsevier Ltd. | |||||||||||||||||||||
| キーワード | ||||||||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||||||
| 主題 | Hybrid photocatalyst | |||||||||||||||||||||
| キーワード | ||||||||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||||||
| 主題 | Graphtec carbon nitride | |||||||||||||||||||||
| キーワード | ||||||||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||||||
| 主題 | Tungsten oxide | |||||||||||||||||||||
| キーワード | ||||||||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||||||
| 主題 | Reduction of carbon dioxide | |||||||||||||||||||||
| キーワード | ||||||||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||||||
| 主題 | Z-scheme reaction | |||||||||||||||||||||
| 出版タイプ | ||||||||||||||||||||||
| 出版タイプ | AM | |||||||||||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||||||||||||||||
| 査読の有無 | ||||||||||||||||||||||
| 値 | yes | |||||||||||||||||||||
| 研究者情報 | ||||||||||||||||||||||
| URL | https://hyokadb02.jimu.kyutech.ac.jp/html/98_ja.html | |||||||||||||||||||||
| 論文ID（連携） | ||||||||||||||||||||||
| 値 | 10254919 | |||||||||||||||||||||
| 連携ID | ||||||||||||||||||||||
| 値 | 6572 | |||||||||||||||||||||
