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Chemical Research in Chinese Universities

, Volume 34, Issue 5, pp 792–797 | Cite as

Adsorption Mechanism of Composite Whisker on Copper Ions and Lead Ions

  • Juan Liu
  • Wenjing Xue
  • Yongchao Bao
  • Wanyi Cheng
Article
  • 17 Downloads

Abstract

A new kind of inorganic composite adsorbent based on chitin whiskers(CHW) and potassium tetratitanate whiskers(PTW) was synthesized via the thermal deposition to remove Cu2+ and Pb2+ from wastewater. CHW could be successfully coated on the surface of PTW when thermal treated 8 times. The adsorption process was better fitted with the Langmuir and Freundlich models. The adsorption process was more conformed to the Pseudo-second-order model. The results from XPS(X-ray photoelectron spectrum) further show that the adsorption mechanism between CHW-PTW and Cu2+, Pb2+ are both ion exchange and chemical adsorption. Thermodynamic parameters suggest that the adsorption processes are nonspontaneous. The adsorption of Cu2+ and Pb2+ is endothermic and exothermic, respectively.

Keywords

Potassium tetratitanate whisker Chitin whisker Adsorption Mechanism 

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Copyright information

© Jilin University, The Editorial Department of Chemical Research in Chinese Universities and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Juan Liu
    • 1
  • Wenjing Xue
    • 1
  • Yongchao Bao
    • 1
  • Wanyi Cheng
    • 1
  1. 1.College of Environment and Safety EngineeringQingdao University of Science and TechnologyQingdaoP. R. China

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