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Wang Chunxiang, Zhang Yan, Xue Ailian, Zhou Shouyong, Zhao Yijiang, Chen Zhidong. Adsorption of pyrogallol from aqueous solution by amine modified attapulgite[J]. Chinese Journal of Environmental Engineering, 2013, 7(4): 1285-1289.
Citation: Wang Chunxiang, Zhang Yan, Xue Ailian, Zhou Shouyong, Zhao Yijiang, Chen Zhidong. Adsorption of pyrogallol from aqueous solution by amine modified attapulgite[J]. Chinese Journal of Environmental Engineering, 2013, 7(4): 1285-1289.
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Adsorption of pyrogallol from aqueous solution by amine modified attapulgite

  • 1.

    School of Petrochemical Engineering, Changzhou University, Changzhou 213100, China

  • 2.

    Jiangsu Key Laboratory for Chemistry of Low Dimensional Materials, College of Chemistry and Chemical Engineering, Huaiyin Normal University, Huaian 223300, China

  • Received Date: 14/04/2012
    Accepted Date: 16/12/2011
    Available Online: 09/04/2013
    Fund Project:
  • Attapulgite was modified by amino-silane coupling agent (γ-aminopropyltriethoxysilane) to use as adsorbent for the removal of pyrogallol from aqueous solutions. The static adsorption behaviors of pyrogallol in aqueous solution were studied. Results indicated that modified attapulgite could effectively enhance the adsorption properties of attapulgite. The optimum conditions for the amount of the modified attapulgite with 50 mL pyrogallol concentration of 100 mg/L were 0.4 g, the temperature of 20℃, the time of 40 min and pH of 5.2. The static adsorption kinetics data were better described by the pseudo-second-order kinetic model rather than pseudo-first-order kinetic model. Adsorption equilibrium data are fitted well to the Langmuir isotherm. The maximum adsorption capacity of modified attapulgite calculated by the Langmuir model is 19.861 mg/g.
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Adsorption of pyrogallol from aqueous solution by amine modified attapulgite

  • Received Date: 14/04/2012
  • Accepted Date: 16/12/2011
  • Available Online: 09/04/2013
Fund Project:

Abstract: Attapulgite was modified by amino-silane coupling agent (γ-aminopropyltriethoxysilane) to use as adsorbent for the removal of pyrogallol from aqueous solutions. The static adsorption behaviors of pyrogallol in aqueous solution were studied. Results indicated that modified attapulgite could effectively enhance the adsorption properties of attapulgite. The optimum conditions for the amount of the modified attapulgite with 50 mL pyrogallol concentration of 100 mg/L were 0.4 g, the temperature of 20℃, the time of 40 min and pH of 5.2. The static adsorption kinetics data were better described by the pseudo-second-order kinetic model rather than pseudo-first-order kinetic model. Adsorption equilibrium data are fitted well to the Langmuir isotherm. The maximum adsorption capacity of modified attapulgite calculated by the Langmuir model is 19.861 mg/g.

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