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Adsorptive cadmium removal using dithiocarbamate type chitosan
http://hdl.handle.net/10458/6283
http://hdl.handle.net/10458/6283342fcfea-1641-46d7-8598-f6e2ed667702
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
本文 (408.4 kB)
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| Item type | その他 / Others(1) | |||||
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| 公開日 | 2020-06-21 | |||||
| タイトル | ||||||
| タイトル | Adsorptive cadmium removal using dithiocarbamate type chitosan | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Cadmium, Adsorption, Dithiocarbamate chitosan, Synthesis | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_1843 | |||||
| 資源タイプ | other | |||||
| 著者 |
Ohto, Keisuke
× Ohto, Keisuke× Ohta, Shingo× Huang, Kai× Kawakita, Hidetaka× Inoue, Katsutoshi |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Uncrosslinked and crosslinked dithiocarbamate type β-chitosan gels were prepared for cadmium adsorptive removal. Uncrosslinked dithiocarbamate type β-chitosan was prepared by reacting β-chitosan with carbon disulfide in aqueous acetic acid and ammonical methanol. crosslinked dithiocarbamate type β-chitosan was prepared by 4 step reactions including imination protection with benzaldehyde, crosslinking with ethylene glycol diglycidyl ether, deprotection, and dithiocarbamation with carbon disulfide. Preliminarily, sulfur contents of both gels were estimated using ICP-AES and combustion ion chromatography. Solubility tests of both gels to acidic solutions were also examined. Then, time course dependency of cadmium adsorption, pH dependency, maximum loading capacity and column chromatographical separation of cadmium over zinc were investigated. They exhibited selective removal of cadmium over zinc. It was found that both gels exhibited excellent cadmium selectivity over other metals investigated, although sulfur contents were not significantly high. Maximum loading capacity of cadmium ion for uncrosslinked and crosslinked dithiocarbamate type β-chitosan gels were estimated to be 0.60 and 0.67 mol kg^-1-resin. Column chromatographical result using both gels also exhibited that cadmium was selectively removed over zinc. | |||||
| 言語 | en | |||||
| 書誌情報 |
en : 4th InternationalArsenic Symposium in MIYAZAKI 2015 p. 100-104, 発行日 2015-10 |
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| 出版者 | ||||||
| 出版者 | University of Miyazaki, IRISH | |||||
| 言語 | en | |||||
| 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 | |||||
