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Citation: XU Hui, XU Yao, CHEN Yong. The Adsorption of Trace Cr(Ⅵ) in Aqueous Solution by Polyaniline/Attapulgite Nanofiber Composite[J]. Chinese Journal of Applied Chemistry, ;2011, 28(5): 549-554. doi: 10.3724/SP.J.1095.2011.00398 shu

The Adsorption of Trace Cr(Ⅵ) in Aqueous Solution by Polyaniline/Attapulgite Nanofiber Composite

1.
College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050

Corresponding author: XU Hui,
Received Date: 7 July 2010
Available Online: 17 September 2010
Fund Project: 国家自然科学基金(51062011)资助项目 (51062011)甘肃省国际科技合作项目(0804WCGA125) (0804WCGA125)

Polyaniline/attapulgite(PANI/ATP) nanofiber composites doped with hydrochloric acid were prepared by an in situ polymerization method and used for the absorbent of trace Cr(Ⅵ) in effluents of various wastewater.The effects of the mass ratio of the nanocomposite to the aqueous solution,the quality of the PANI/ATP nanofiber composite,adsorptive time and temperature as well as pH value in the solution on the adsorptive performance of PANI/ATP nanofiber composite were investigated.The results indicated that nearly 99.8% of Cr(Ⅵ) could be removed from the solution by PANI/ATP nanofiber composite when the mass ratio of the materials is 2:1,the quality is 0.4 g,the time is 50 min.The adsorption follows the Langmuir adsorption isotherm.Having the synergetic adsorption capacity originated from its organic and inorganic components,PANI/ATP nanofiber composite is a promising adsorbent for Cr(Ⅵ) because of its high efficiency,cost efficiency and regeneracy.
- polyaniline/attapulgite nanofiber composite,
- trace quantity of Cr (Ⅵ),
- adsorption
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