Colloid and Polymer Science

, Volume 297, Issue 4, pp 651–659 | Cite as

Preparation of spindle-shaped polyaniline supported Au catalysts with enhanced catalytic reduction of 4-nitrophenol

  • Libo Sun
  • Shuang Peng
  • Lin Jiang
  • Yuhua Zheng
  • Xun Sun
  • Huijuan Su
  • Caixia QiEmail author
Original Contribution


Herein, several spindle-shaped polyaniline (PANI)/Au catalysts were prepared and evaluated in the reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) with NaBH4 as the reducing agent. The spindle-shaped PANI support was directly synthesized via a facile interfacial polymerization method without using any templates. Au colloid nanoparticles (NPs) with a narrow size distribution (2~6 nm) were prepared via an Au sol method using polyvinyl alcohol (PVA) as a protecting agent and NaBH4 as a reducing agent. The Au colloid NPs were deposited on the PANI support through an adsorption effect. These as-prepared PANI/Au catalysts were thoroughly characterized by TEM, FT-IR, XPS, and EDX. The reduction of 4-NP by NaBH4 was used as a model reaction to evaluate the catalytic properties of the catalysts. Results showed that the as-prepared catalysts presented enhanced catalytic properties for the reduction of 4-NP to 4-AP.

Graphical abstract


Spindle-shaped PANI PANI/Au catalysts Catalytic reduction of 4-nitrophenol Interfacial polymerization Au colloid adsorption 



This work was financially supported by the Key Research and Development Plan of Shandong Province (nos. 2018CXGC1108) and the Natural Science Foundation of China (nos. 21802117 and 21773202). We also acknowledged the financial supports from the Collaborative Innovation Center of Light Hydrocarbon Transformation and Utilization.


Compliance with ethical standards

The authors declare that they have no conflict of interest.


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Libo Sun
    • 1
  • Shuang Peng
    • 1
  • Lin Jiang
    • 1
  • Yuhua Zheng
    • 1
  • Xun Sun
    • 1
  • Huijuan Su
    • 1
  • Caixia Qi
    • 1
    Email author
  1. 1.Shandong Applied Research Center of Gold Nanotechnology, School of Chemistry & Chemical EngineeringYantai UniversityYantaiChina

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