| Item type |
紀要論文 / Departmental Bulletin Paper(1) |
| 公開日 |
2024-06-27 |
| タイトル |
|
|
タイトル |
メカノケミカル法によるSr4Nb2O9-N の調製と光触媒能評価 |
|
言語 |
ja |
| タイトル |
|
|
タイトル |
Synthesis of Sr4Nb2O9-N by mechanochemical method and evaluation of their photocatalytic activity |
|
言語 |
en |
| 言語 |
|
|
言語 |
jpn |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
photocatalyst |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
visible light |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
visible light |
| 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 |
departmental bulletin paper |
| 著者 |
西, 健斗
Kento, Nishi
廣川, 心
Kokoro, Hirokawa
松山, 達
Tatsushi, Matsuyama
井田, 旬一
Junichi, Ida
|
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
Perovskite-type oxynitrides often exhibit intense colors and have the potential for applications such as visible light responsive photocatalysts. Wu et al. (2016) reported that nitrogen- doped Sr4Nb2O9, which is one of the Perovskite-type oxynitride, demonstrated high oxygen generation efficiency for water splitting under visible light irradiation. However, these oxynitrides have been synthesized by the direct nitridation method which require very severe reaction conditions such as high temperature (900-1100 °C) under ammonia flow for long time (e.g., 10 h). Thus, a safer and more convenient synthesis method is required. As an alternative, the mechanochemical method has attracted attention recently. This method does not need to treat sample at high temperature under ammonia flow for a long time to dope nitrogen, and instead, solid materials such as CO(NH2)2 can be utilized as nitrogen sources. Therefore, in this study, we attempted to develop a more safer and simple synthesis method of nitrogen-doped Sr4Nb2O9 by using the mechanochemical method. The experimental results showed that Sr4Nb2O9-N prepared by the mechanochemical method at a rotation speed of 600 rpm for 1 h showed the highest hydrogen production rate among the various mechanochemical conditions with different rotation speeds and times. The result indicates that the mechanochemical methods is an effective method to synthesize visible light responsive photocatalyst for hydrogen production with much safer and simpler condition compared to the conventional methods. |
|
言語 |
en |
| 書誌情報 |
プランクトン工学研究
号 4,
p. 24-31,
発行日 2024-06-21
|
| 出版者 |
|
|
出版者 |
創価大学プランクトン工学研究所 |
| ISSN |
|
|
収録物識別子タイプ |
EISSN |
|
収録物識別子 |
24364878 |
| 著者版フラグ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
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