Environmental Science and Pollution Research

, Volume 26, Issue 4, pp 3991–3999 | Cite as

Comparable investigation of polyaniline behavior towards gaseous ammonia and toluene adsorption

  • Amira AbdelraheemEmail author
  • Ahmed H. El-Shazly
  • Marwa Elkady
Research Article


With raising awareness of gaseous air pollutants and their harmful impact, adsorption is considered one of the most prominent techniques for gaseous emissions control. The usage of polyaniline as a gas adsorbent is an innovative idea. This work aims to compare the efficacy of synthesized polyaniline nanotubes (PANT) as a novel adsorbent towards inorganic gases (ammonia NH3) and volatile organic compounds (toluene vapor). PANT was prepared via a sol-gel preparation technique. The molecular structure of prepared PANT was characterized by Fourier-transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). The morphological structure was confirmed using transmission electron microscopy (TEM) and scanning electron microscope (SEM). The PANT adsorbent surface area was determined using Brunner Emmett Teller (BET). Dynamic behavior of simulated feed gas mixture of NH3 and toluene in air were examined using a fixed bed adsorption arrangement. The same adsorption conditions (inlet concentration, gas mixture feed flow rate, and a fixed amount of adsorbent) were applied for both NH3 and toluene adsorption test. The NH3 and toluene removal efficiencies were 100% and 96% respectively. Consequently, PANT is an auspicious adsorbent that can be utilized to control the indoor and outdoor gaseous air emissions.

Graphical Abstracts


Polyaniline nanotubes Gaseous air filters Ammonia adsorption Toluene adsorption 



The author thankfully acknowledges the Egyptian ministry of higher education which granted her a fully funded Ph.D. scholarship, Egypt-Japan University (E-JUST) and Kyoto university, Japan.

Funding information

This work was supported by Egyptian Science and Technology Development Fund (STDF) (Grant no. 30735).


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Chemical and Petrochemicals Engineering DepartmentEgypt-Japan University of Science and TechnologyNew Borg El-Arab AlexandriaEgypt
  2. 2.Occupational Health and Air Pollution Department, High Institute of Public HealthAlexandria UniversityAlexandriaEgypt
  3. 3.Chemical Engineering Department, Faculty of EngineeringAlexandria UniversityAlexandriaEgypt
  4. 4.Fabrication Technology DepartmentAdvanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technology Applications (SRTA City)AlexandriaEgypt

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