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Synthesis of stainless steel nanoballs via submerged glow-discharge plasma and its photocatalytic performance in methylene blue decomposition

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タイトル: Synthesis of stainless steel nanoballs via submerged glow-discharge plasma and its photocatalytic performance in methylene blue decomposition
著者: bin Julaihi, Muhammad Rafiq Mirza 著作を一覧する
Yatsu, Shigeo 著作を一覧する
Jeem, Melbert 著作を一覧する
Watanabe, Seiichi 著作を一覧する
キーワード: stainless steel
photocatalytic
nanoballs
methylene blue
発行日: 2015年 8月14日
出版者: Taylor & Francis
誌名: Journal of experimental nanoscience
巻: 10
号: 12
開始ページ: 965
終了ページ: 982
出版社 DOI: 10.1080/17458080.2014.951408
抄録: Stainless steel nanoparticles or 'nanoballs' have been synthesised using submerged glow-discharge plasma. Transmission electron microscopy showed that the nanoballs are uniformly spherical and size distribution estimation showed that their diameters are below 200nm. The decomposition of methylene blue solution under ultraviolet light with the wavelength of 354nm was observed in the presence of stainless steel nanoballs. A mixture of stainless steel nanoballs and 0.1% methylene blue dye was irradiated with ultraviolet light. The concentration of methylene blue was reduced to baseline level in 72hours. This shows that the stainless steel nanoballs have photocatalytic ability. In stainless steel nanoballs, methylene blue showed two different decomposition pathways; showing fast and slow reactions. Also, methylene blue was oxidised into sulphoxide before reducing into lighter by-products. X-ray diffraction analysis has shown that the nanoballs consist of Fe2O3 and Cr2O3, which are photocatalytically active species.
Rights: This is an Accepted Manuscript of an article published by Taylor & Francis in Journal of Experimental Nanoscience on 2015-08-14, available online: http://www.tandfonline.com/doi/full/10.1080/17458080.2014.951408.
資料タイプ: article (author version)
URI: http://hdl.handle.net/2115/62684
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 渡辺 精一

 

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