『徳島大学 教育・研究者情報データベース (EDB)』---[学外] /
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EID=126381EID:126381, Map:0, LastModified:2018年11月27日(火) 11:49:03, Operator:[三木 ちひろ], Avail:TRUE, Censor:0, Owner:[[部門長]/[大学院ソシオテクノサイエンス研究部.エコシステムデザイン部門]], Read:継承, Write:継承, Delete:継承.
種別 (必須): 学術論文 (審査論文) [継承]
言語 (必須): 英語 [継承]
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カテゴリ (推奨):
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学究種別 (推奨):
組織 (推奨): 1.独立行政法人 産業技術総合研究所 [継承]
著者 (必須): 1. (英) Chitrakar Ramesh (日) (読)
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2. (英) Tezuka Satoko (日) 手束 聡子 (読) てづか さとこ
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3. (英) Sonoda Akinari (日) 苑田 晃成 (読) そのだ あきなり
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4. (英) Sakane Kohji (日) 坂根 幸治 (読) さかね こうじ
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5. (英) Ooi Kenta (日) 大井 健太 (読) おおい けんた
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6.廣津 孝弘
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題名 (必須): (英) Adsorption of phosphate from seawater on calcined MgMn-layered double hydroxides  (日)    [継承]
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要約 (任意): (英) Adsorptive properties of MgMn-3-300 (MgMn-type layered double hydroxide with Mg/Mn mole ratio of 3, calcined at 300 degrees C) for phosphate were investigated in phosphate-enriched seawater with a concentration of 0.30 mg-P/dm3. It showed the highest phosphate uptake from the seawater among the inorganic adsorbents studied (hydrotalcite, calcined hydrotalcite, activated magnesia, hydrous aluminum oxide, manganese oxide (delta-MnO2)). The phosphate uptake by MgMn-3-300 reached 7.3 mg-P/g at an adsorbent/solution ratio of 0.05 g/2 dm3. The analyses of the uptakes of other constituents (Na+, K+, Ca(+, Cl-, and SO(2-)4) of seawater showed that the adsorbent had a markedly high selectivity for the adsorption of phosphate ions. Effects of initial phosphate concentration, temperature, pH, and salinity on phosphate uptake were investigated in detail by a batch method. The phosphate uptake increased slightly with an increase in the adsorption temperature. The adsorption isotherm followed Freundlich's equation with constants of logK(F)=1.25 and 1/n=0.65, indicating that it could effectively remove phosphate even from a solution of markedly low phosphate concentration as well as with large numbers of coexisting ions. The pH dependence showed a maximum phosphate uptake around pH 8.5. The pH dependence curve suggested that selective phosphate adsorption progresses mainly by the ion exchange of HPO(2-)4. The study on the effect of salinity suggested the presence of two kinds of adsorption sites in the adsorbent: one nonspecific site with weak interaction and one specific site with strong interaction. The effective desorption of phosphate could be achieved using a mixed solution of 5 M NaCl + 0.1 M NaOH (1 M = 1 mol/dm3), with negligible dissolution of adsorbent. The adsorbent had high chemical stability against the adsorption/desorption cycle; it kept a good phosphate uptake even after the repetition of the seventh cycle.  (日)    [継承]
キーワード (推奨): 1. (英) calcined layered double hydroxides (日) (読) [継承]
2.吸着 (adsorption) [継承]
3. (英) selectivity (日) (読) [継承]
4. (英) phosphate (日) (読) [継承]
5.海水 (seawater) [継承]
発行所 (推奨): Elsevier Science [継承]
誌名 (必須): Journal of Colloid and Interface Science ([Academic Press])
(pISSN: 0021-9797, eISSN: 1095-7103)

ISSN (任意): 0021-9797
ISSN: 0021-9797 (pISSN: 0021-9797, eISSN: 1095-7103)
Title: Journal of colloid and interface science
Title(ISO): J Colloid Interface Sci
Publisher: Elsevier Inc.
 (NLM Catalog  (Scopus  (CrossRef (Scopus information is found. [need login])
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(必須): 290 [継承]
(必須): 1 [継承]
(必須): 45 51 [継承]
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年月日 (必須): 西暦 2005年 5月 1日 (平成 17年 5月 1日) [継承]
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DOI (任意): 10.1016/j.jcis.2005.04.025    (→Scopusで検索) [継承]
PMID (任意): 15925378    (→Scopusで検索) [継承]
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Scopus (任意): 2-s2.0-23944468553 [継承]
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備考 (任意): 1.(英) Article.Affiliation: Health Technology Research Center, National Institute of Advanced Industrial Science and Technology (AIST), 2217-14 Hayashi-cho, Takamatsu 761-0395, Japan. chitrakar-ramesh@aist.go.jp  (日)    [継承]
2.(英) Article.PublicationTypeList.PublicationType: Journal Article  (日)    [継承]

標準的な表示

和文冊子 ● Ramesh Chitrakar, Satoko Tezuka, Akinari Sonoda, Kohji Sakane, Kenta Ooi and Takahiro Hirotsu : Adsorption of phosphate from seawater on calcined MgMn-layered double hydroxides, Journal of Colloid and Interface Science, Vol.290, No.1, 45-51, 2005.
欧文冊子 ● Ramesh Chitrakar, Satoko Tezuka, Akinari Sonoda, Kohji Sakane, Kenta Ooi and Takahiro Hirotsu : Adsorption of phosphate from seawater on calcined MgMn-layered double hydroxides, Journal of Colloid and Interface Science, Vol.290, No.1, 45-51, 2005.

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