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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2008.12
- 수록면
- 369 - 373 (5page)
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Special concern has been given to the elevated arsenic content in soils because of its high mobility and toxicity. Layered double hydroxide (LDH) which has a high anionic exchange capacity is another potential anion adsorbent for toxic anions such as arsenic, chromate and selenium etc. The uptake of arsenate from aqueous solutions by the calcined Mg-Al LDH has been investigated. The sorption capacity was about 530 mmol/kg. Sorption isotherm was defined as L-type in which arsenate was removed by LDH through anion uptake reaction. Arsenate sorption by the calcined Mg-Al LDH was occurred by reconstruction of LDH"s framework. Competitive adsorption revealed that Mg-Al LDH had higher selectivity for arsenate than for sulfate. These results strongly suggest that calcined Mg-Al LDH has a promising potential for efficient removal of toxic metal oxides like arsenates from aqueous environments.
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참고문헌 (27)
참고문헌 신청
1. [학술지(정기간행물)] - Appelo, C.A.J. / 2002 / Surface complexation of ferrous iron and carbonate on ferrihydrite and the mobilization of arsenic / Environ. Sci. Technol 36 : 3096 ~ 3103
2. [학술지(정기간행물)] - Cai, Y. / 2002 / Assessment of arsenic mobility in the soils of some golf courses in the south Florida / Science of The Total Environment 291 : 123 ~ 134
3. [학술지(정기간행물)] - Cavani, F. / 1991 / Hydrotalcite-type anionic clay : preperation, properties and application / Catal. Today 11 : 173 ~ 301
4. [학술지(정기간행물)] - Chen, M. / 2002 / Arsenic concentrations in Florida surface soils: Influence of soil type and properties / Soil Sci. Soc. Am. J 66 : 632 ~ 640
5. [학술지(정기간행물)] - Corma, A. / 1994 / Hydro-talcites as base catalysts : influence of the chemical composition and synthesis conditions on the dehydration / J. Catal 148 : 205 ~ 212
2. [학술지(정기간행물)] - Cai, Y. / 2002 / Assessment of arsenic mobility in the soils of some golf courses in the south Florida / Science of The Total Environment 291 : 123 ~ 134
3. [학술지(정기간행물)] - Cavani, F. / 1991 / Hydrotalcite-type anionic clay : preperation, properties and application / Catal. Today 11 : 173 ~ 301
4. [학술지(정기간행물)] - Chen, M. / 2002 / Arsenic concentrations in Florida surface soils: Influence of soil type and properties / Soil Sci. Soc. Am. J 66 : 632 ~ 640
5. [학술지(정기간행물)] - Corma, A. / 1994 / Hydro-talcites as base catalysts : influence of the chemical composition and synthesis conditions on the dehydration / J. Catal 148 : 205 ~ 212
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