Removal of fluoride from aqueous solution onto Zr-loaded garlic peel (Zr-GP) particles

Kai Huang, Jiu Gang Shao, Hong Min Zhu, Inoue Katsutoshi

研究成果: Article査読

20 被引用数 (Scopus)

抄録

Garlic peel, as the raw material, was modified by loading with zirconium(IV), exhibiting quite good uptaking behaviour for fluoride anion. The adsorption experiments were carried out in batch shaking vessels, and the process was strongly dependent on the pH value. The adsorption fits Langmuir model well, and the maximum adsorption capacities at equilibrium pH 2 and 6 are evaluated to be 1.10 and 0.89 mol(fluoride)/kg of Zr-loaded garlic peel gel, respectively. The evaluation of effects of coexisting anions such as nitrate, sulfate and phosphate shows that nitrate and sulfate have no negative effect on the adsorption of fluoride, while phosphate has a little effect. Adsorption kinetics of fluoride is well described by pseudo-second-order rate equation, and the corresponding adsorption rate constant is calculated to be 3.25×10 -3 g/(mg.min).

本文言語English
ページ(範囲)1448-1453
ページ数6
ジャーナルJournal of Central South University of Technology (English Edition)
18
5
DOI
出版ステータスPublished - 2011 10
外部発表はい

ASJC Scopus subject areas

  • 材料科学(全般)
  • 材料力学
  • 機械工学

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