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Cellulose

, Volume 25, Issue 12, pp 7393–7407 | Cite as

Polypyrrole-coated cotton fabric decorated with silver nanoparticles for the catalytic removal of p-nitrophenol from water

  • Mohamad M. Ayad
  • Wael A. Amer
  • Sawsan Zaghlol
  • Nela Maráková
  • Jaroslav Stejskal
Original Paper
  • 124 Downloads

Abstract

The development of new catalytic transformations with easy separation and recyclability is essential in chemical synthesis. An efficient heterogeneous catalytic system composed of a conducting polymer, polypyrrole (PPy), deposited on cotton fabric support, and decorated with silver nanoparticles is described. Such ternary composites can be used in environmental issues, such as water-pollution treatment. The model reduction of p-nitrophenol to p-aminophenol with sodium borohydride was investigated by means of UV–visible spectroscopy. The reaction was catalyzed even by PPy alone and the catalytic effect was strongly enhanced by silver nanoparticles. It obeys the first-order kinetics. The catalytic effect increases with the catalyst dose due to increased number of catalytic sites. This also applies to the increased content of silver. The elevated temperature as well as the reduced polarity of the reaction medium have negative effect on the catalyst performance. The catalysts can be reused several times while maintaining good efficiency. The ternary composites are thus good candidates for the catalytic reductive removal of toxic compounds from water.

Keywords

Catalytic reduction Silver nanoparticles Polypyrrole Cotton fabric Negative activation energy 

Notes

Acknowledgments

The authors thank the Tanta University and the Czech Science Foundation (17-05095S) for support.

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© Springer Nature B.V. 2018

Authors and Affiliations

  1. 1.Chemistry Department, Faculty of ScienceTanta UniversityTantaEgypt
  2. 2.Institute of Basic and Applied SciencesEgypt-Japan University of Science and TechnologyBorg El ArabEgypt
  3. 3.Centre of Polymer Systems, University InstituteTomas Bata University in ZlinZlinCzech Republic
  4. 4.Institute of Macromolecular ChemistryAcademy of Sciences of the Czech RepublicPrague 6Czech Republic

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