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Improvement of photocatalytic activity of brookite titanium dioxide nanorods by surface modification using chemical etching
http://hdl.handle.net/10228/00006567
http://hdl.handle.net/10228/00006567d9606d05-a238-46ef-9f0d-151e2bffb6b6
名前 / ファイル | ライセンス | アクション |
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ASS258-5803.pdf (610.7 kB)
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Item type | 学術雑誌論文 = Journal Article(1) | |||||||||||||||||
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公開日 | 2018-02-16 | |||||||||||||||||
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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 | Improvement of photocatalytic activity of brookite titanium dioxide nanorods by surface modification using chemical etching | |||||||||||||||||
言語 | ||||||||||||||||||
言語 | eng | |||||||||||||||||
著者 |
Zhanga, Linjie
× Zhanga, Linjie× Menendez-Floresa, Victor M.× 村上, 直也
WEKO
27551
× 横野, 照尚
WEKO
6794
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抄録 | ||||||||||||||||||
内容記述タイプ | Abstract | |||||||||||||||||
内容記述 | Surface morphology of brookite titanium dioxide (TiO2) nanorods was modified by chemical etching with aqueous hydrogen (H2O2)–ammonia (NH3) or sulfuric acid (H2SO4) solution. The brookite nanorods after chemical etching were characterized by TEM, SAED, FE-SEM, XRD and specific surface area measurements. Brookite nanorods after chemical etching with H2O2–NH3 solution exposed new crystal faces in the tips, and nanorods with sharper tips were observed. On the other hand, etching with H2SO4 at 200 °C induced morphological changes in the tip faces and broadened the angle between tip faces as a result of dissolution along the [0 0 1] direction, though brookite nanorods were only slightly etched after etching with H2SO4 at room temperature. Photocatalytic activity of brookite nanorods was tested by toluene decomposition in gas phase under ultraviolet irradiation. Brookite nanorods etched with H2O2–NH3 solution showed higher photocatalytic activity than that of brookite nanorods before etching. In the case of H2SO4 etching at 200 °C, brookite nanorods after etching exhibited lower photocatalytic activity. One reason for this may be that the formation of newly exposed crystal faces by H2O2–NH3 etching improved separation of redox sites due to their strong oxidation ability. | |||||||||||||||||
書誌情報 |
Applied Surface Science 巻 258, 号 15, p. 5803-5809, 発行日 2012-05-15 |
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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.apsusc.2012.02.103 | |||||||||||||||||
NCID | ||||||||||||||||||
収録物識別子タイプ | NCID | |||||||||||||||||
収録物識別子 | AA1152169X | |||||||||||||||||
ISSN | ||||||||||||||||||
収録物識別子タイプ | ISSN | |||||||||||||||||
収録物識別子 | 0169-4332 | |||||||||||||||||
著作権関連情報 | ||||||||||||||||||
権利情報 | Copyright (c) 2012 Elsevier B.V. | |||||||||||||||||
キーワード | ||||||||||||||||||
主題Scheme | Other | |||||||||||||||||
主題 | Photocatalyst | |||||||||||||||||
キーワード | ||||||||||||||||||
主題Scheme | Other | |||||||||||||||||
主題 | Brookite nanorods | |||||||||||||||||
キーワード | ||||||||||||||||||
主題Scheme | Other | |||||||||||||||||
主題 | Chemical etching | |||||||||||||||||
キーワード | ||||||||||||||||||
主題Scheme | Other | |||||||||||||||||
主題 | Redox site | |||||||||||||||||
キーワード | ||||||||||||||||||
主題Scheme | Other | |||||||||||||||||
主題 | Photocatalytic activity | |||||||||||||||||
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 | ||||||||||||||||||
https://hyokadb02.jimu.kyutech.ac.jp/html/98_ja.html | ||||||||||||||||||
論文ID(連携) | ||||||||||||||||||
10225304 | ||||||||||||||||||
連携ID | ||||||||||||||||||
6562 | ||||||||||||||||||
資料タイプ | ||||||||||||||||||
内容記述タイプ | Other | |||||||||||||||||
内容記述 | Journal Article | |||||||||||||||||
著者所属 | ||||||||||||||||||
Department of Materials Science, Faculty of Engineering, Kyushu Institute of Technology | ||||||||||||||||||
著者所属 | ||||||||||||||||||
Department of Materials Science, Faculty of Engineering, Kyushu Institute of Technology | ||||||||||||||||||
著者所属 | ||||||||||||||||||
Department of Materials Science, Faculty of Engineering, Kyushu Institute of Technology | ||||||||||||||||||
著者所属 | ||||||||||||||||||
Department of Materials Science, Faculty of Engineering, Kyushu Institute of Technology, JST, PRESTO |