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STUDY ON THE ADSORPTION BEHAVIOR OF Pb(Ⅱ) ON NANOMETER ATTAPULGITE BY FAAS

Chinese Journal of Reactive Polymers 2007年第Z1期 31-38页

作者： LI Chunxiang LIU Aiqin XU Wanzhen YAN Yongsheng Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China

The adsorptive behavior of nanometer attapulgite modified by acid to Pb(II) was investigated by flame atomic absorption spectrometry.(FAAS) in this paper. The mainly effect parameters on the adsorptive efficiency of Pb(II), such as the acidity of the solution, the amount of attapulgite, oscillation time and static time were studied. Also the influencing factors of the recovery efficiency of Pb(II), including the concentration of hydrochloric acid, the volume of hydrochloric acid, oscillation time and static time were investigated. The adsorptive capacity of Pb(II) on nanometer attapulgite was 26.5mg/g and the adsorptive capacity of first cycle and second cycle regenerated nanometer attapulgite were 26.5mg/g and 26.3mg/g, respectively. The results obtained indicated that the regenerated effect was good.

关键词： Nanometer attapulgite Adsorption, Pb(II) flame atomic absorption spectrometry.

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STUDY ON THE ADSORPTION BEHAVIOR OF Pb(Ⅱ) ON NANOMETER ATTAPULGITE BY FAAS

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Chinese Journal of Reactive Polymers 2007年第1期16卷 31-38页

作者： LI Chunxiang LIU Aiqin XU Wanzhen YAN Yongsheng Chemistry and Chemical Engineering Jiangsu University Zhenjiang 212013 China

The adsorptive behavior of nanometer attapulgite modified by acid to Pb（Ⅱ） was investigated by flame atomic absorption spectrometry.（FAAS） in this paper. The mainly effect parameters ott the adsorptive efficiency of Pb（Ⅱ）, such as the acidity of the solution, the amount of attapulgite, oscillation time and static time were studied. Also the influencing factors of the recovery efficiency of Pb（Ⅱ）, including the concentration of hydrochloric acid, the volume of hydrochloric acid, oscillation time and static time were investigated. The adsorptive capacity of Pb（Ⅱ） on nanometer attapulgite was 26.5mg/g and the adsorptive capacity of first cycle and second cycle regenerated nanometer attapulgite were 26.5mg/g and 26.3mg/g, respectively. The results obtained indicated that the regenerated effect was good.

关键词： Nanometer attapulgite Adsorption, Pb(Ⅱ) flame atomic absorption spectrometry.

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