Hydrogen peroxide production by radiolysis of sodium chloride solutions containing a small amount of bromide ion

微量の臭化物イオンを含むNaCl水溶液への線照射による過酸化水素生成

端邦樹 ; 井上博之*; 小嶋崇夫*; 岩瀬彰宏*; 笠原茂樹; 塙悟史 ; 上野文義 ; 塚田隆

Hata, Kuniki; Inoue, Hiroyuki*; Kojima, Takao*; Iwase, Akihiro*; Kasahara, Shigeki; Hanawa, Satoshi; Ueno, Fumiyoshi; Tsukada, Takashi

radiolysis experiments of solutions, which consisted of a mixture of NaCl and NaBr, were conducted to confirm the validity of radiolysis calculations of seawater simulated solutions and to determine the importance of Br $^{-}$ in the production of H $_{2}$ O $_{2}$ via water radiolysis. The steady-state concentration of H $_{2}$ O $_{2}$ in each solution was measured after irradiation and compared to that obtained by radiolysis calculations. It was found that the calculated and experimental results were in good agreement. The concentration of H $_{2}$ O $_{2}$ in the 0.6 M NaCl solution increased approximately three times by the addition of 1 mM NaBr. The result showed that Br $^{-}$ plays an important role in the production of H $_{2}$ O $_{2}$ by water radiolysis, presumably due to the reactions of Br $^{-}$ with hydroxyl radical. The H $_{2}$ O $_{2}$ production of 1 mM NaCl solutions increased when the pH was either higher or lower than 8. It was considered that hydrated electron also plays an important role in H $_{2}$ O $_{2}$ production in these acidic and alkaline conditions.

使用言語	:	English
掲載資料名	:	Nuclear Technology
巻	:	193
号	:	3
ページ数	:	p.434 - 443
発行年月	:	2016/03
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キーワード	:	seawater; radiolysis; hydrogen peroxide; Fukushima Daiichi Nuclear Power Station Accident; 福島第一原子力発電所事故

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論文URL	:	https://doi.org/10.13182/NT15-32
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受委託・共同研究相手機関	:	大阪府立大学

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InCites™	:	パーセンタイル：77.16 分野：Nuclear Science & Technology
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登録番号 : AA20140850
抄録集掲載番号 : 44000979
論文投稿番号 : 17667

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