Preparation of a Woody Functional Material Containing Phosphoric Acid and Adsorption Behavior of Metal Ions

Functional materials of cedar sawdust with phosphoric acid were prepared and the characteristics of their adsorption for Mg2+ and alkaline earth metal ions were studied. The cedar sawdust was pretreated with potassium hydroxide solution at room temperature. Next modified cedar sawdust was reacted wi...

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Published inKOBUNSHI RONBUNSHU Vol. 70; no. 4; pp. 161 - 165
Main Authors MIYAUCHI, Toshiyuki, SUZUKI, Masashi, HONDA, Keisuke, YOSHIDA, Tsuyoshi
Format Journal Article
LanguageEnglish
Japanese
Published The Society of Polymer Science, Japan 01.01.2013
Subjects
Adsorption
Adsorption of Metal Ions
Alkaline earth metals
Cation Exchanger
Cedar
Dicarboxylic acids
Ethers
Hydrochloric acid
Phosphoric acid
Sawdust
Woody Biomass
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Summary:Functional materials of cedar sawdust with phosphoric acid were prepared and the characteristics of their adsorption for Mg2+ and alkaline earth metal ions were studied. The cedar sawdust was pretreated with potassium hydroxide solution at room temperature. Next modified cedar sawdust was reacted with phosphoryl chloride in ether. The optimum pH range for the adsorption of alkaline earth metal ions was 9.0–14. The adsorption capacity was 1.02 meq g−1-R. The adsorption was rapid; the adsorption equilibrium was attained within about 10 min. Thus, the synthesized functional material could be used in a column with a high flow rate. By using boric acid- tartaric acid- 2,6 pyridine dicarboxylic acid buffer solution and hydrochloric acid, the woody functional material containing phosphoric acid could be utilized for the mutual separation of Ca2+-Mg2+ and Ba2+-Sr2+.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0386-2186
1881-5685
DOI:10.1295/koron.70.161