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Preparation of Yttrium-Iron Binary Composites and Their Arsenic Adsorption Properties
http://hdl.handle.net/10458/6916
http://hdl.handle.net/10458/69163b41ff05-3401-4d87-9d60-1efe5d12348a
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
本文 (1.3 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2020-06-22 | |||||
| タイトル | ||||||
| タイトル | Preparation of Yttrium-Iron Binary Composites and Their Arsenic Adsorption Properties | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| キーワード | Adsorption, Arsenic, Yttrium, Iron, Binary Composites | |||||
| 資源タイプ | ||||||
| 資源タイプ | journal article | |||||
| 著者 |
Wakamatsu, Amu
× Wakamatsu, Amu× 大栄, 薫× Oshima, Tatsuya× Baba, Yoshinari |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Removal of arsenic is the important issue to be resolved immediately because arsenic is harmful to the environment and the human body. Recently, the development of binary oxide containing iron oxide has gained considerable attention. In this study, novel magnetic binary oxides containing iron and yttrium（FeYx（x = molar ratio Y to Fe, 0.5, 1, 2）） were prepared and their adsorption behaviors of As（III） and As（V） were evaluated. The specific surface area and the point of zero charge （PZC） of FeYx increased with increasing x. FeY2 had larger specific surface area （183 m^2・g^-1） and higher PZC （10.3） than FeY0.5 and FeY1. All adsorption experiments were carried out by batch method and the effects of pH and arsenic concentration on arsenic removal were investigated. The adsorption percentage of As（III） and As（V） using FeY2 was higher than 90 % in the wide region of pH 6.0-10.5 and decreased slightly at higher pH than the PZC. The adsorption isotherms of As（III） and As（V） with FeY2 at 303 K fitted the Langmuir model well. The maximum adsorption capacities of As（III） and As（V） on FeY2 were 1.12 and 3.26 mmol・g^-1, respectively. FeY2 is expected as a high performance adsorbent for As（III） and As（V）. | |||||
| 書誌情報 |
5th International Arsenic Symposium in MIYAZAKI 2018 p. 14-16, 発行日 2018-06 |
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| 出版者 | ||||||
| 出版者 | University of Miyazaki, IRISH | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
