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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2014.9
- 수록면
- 247 - 253 (7page)
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초록· 키워드
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The aim of this study was to characterize quintinite in fluoride removal from aqueous solutions, using batch experiments. Experimental results showed that the maximum adsorption capacity of fluoride to quintinite was 7.71 mg/g. The adsorption of fluoride to quintinite was not changed at pH 5?9, but decreased considerably in highly acidic (pH < 3) and alkaline (pH > 11) solution conditions. Kinetic model analysis showed that among the three models (pseudo-first-order, pseudo-second-order, and Elovich), the pseudo-second-order model was the most suitable for describing the kinetic data. From the nonlinear regression analysis, the pseudo-second-order parameter values were determined to be qe=0.18 mg/g and k2=28.80 g/mg/hr. Equilibrium isotherm model analysis demonstrated that among the three models (Langmuir, Freundlich, and Redlich-Peterson), both the Freundlich and Redlich-Peterson models were suitable for describing the equilibrium data. The model analysis superimposed the Redlich-Peterson model fit on the Freundlich fit. The Freundlich model parameter values were determined from the nonlinear regression to be KF=0.20 L/g and 1/n=0.51. This study demonstrated that quintinite could be used as an adsorbent for the removal of fluoride from aqueous solutions.
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참고문헌 (25)
참고문헌 신청
1. [학술지(정기간행물)] - Delorme F / 2007 / Comparison of the fluoride, arsenate and nitrate anions water depollution potential of a calcined quintinite, a layered double hydroxide compound / J. Mater. Sci 42 : 5799 ~ 5804
2. [학술지(정기간행물)] - Miyata S / 1983 / Anion-exchange properties of hydrotalcite-like compounds / Clays Clay Miner 31 : 305 ~ 311
3. [학술지(정기간행물)] - Hernandez-Moreno MJ / 1985 / IR characteristics of hydrotalcite-like compounds / Phys. Chem. Miner 12 : 34 ~ 38
4. [학술지(정기간행물)] - Costantino U / 1998 / New synthetic routes to hydrotalcite-like compounds: characterisation and properties of the obtained materials / Eur. J. Inorg. Chem 1998 : 1439 ~ 1446
5. [학술지(정기간행물)] - Goh KH / 2008 / Application of layered double hydroxides for removal of oxyanions: a review / Water Res 42 : 1343 ~ 1368
2. [학술지(정기간행물)] - Miyata S / 1983 / Anion-exchange properties of hydrotalcite-like compounds / Clays Clay Miner 31 : 305 ~ 311
3. [학술지(정기간행물)] - Hernandez-Moreno MJ / 1985 / IR characteristics of hydrotalcite-like compounds / Phys. Chem. Miner 12 : 34 ~ 38
4. [학술지(정기간행물)] - Costantino U / 1998 / New synthetic routes to hydrotalcite-like compounds: characterisation and properties of the obtained materials / Eur. J. Inorg. Chem 1998 : 1439 ~ 1446
5. [학술지(정기간행물)] - Goh KH / 2008 / Application of layered double hydroxides for removal of oxyanions: a review / Water Res 42 : 1343 ~ 1368
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UCI(KEPA) : I410-ECN-0101-2017-539-001539189