African Journal of Pure and Applied Chemistry
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Article Number - DB2901659678


Vol.10(3), pp. 33-41 , July 2016
DOI: 10.5897/AJPAC2016.0690
ISSN: 1996-0840



Full Length Research Paper

Photocatalytic activity of nanopolyaniline (NPA) on phenol degradation



Tesfa Oluma Fufa
  • Tesfa Oluma Fufa
  • Chemistry Department, Haramaya University Post Box: 138, Dire Dawa, Ethiopia.
  • Google Scholar
Abi Tadesse Mengesha
  • Abi Tadesse Mengesha
  • Chemistry Department, Haramaya University Post Box: 138, Dire Dawa, Ethiopia.
  • Google Scholar
Om Prakash Yadav
  • Om Prakash Yadav
  • Chemistry Department, Haramaya University Post Box: 138, Dire Dawa, Ethiopia.
  • Google Scholar







 Received: 30 April 2016  Accepted: 15 July 2016  Published: 31 July 2016

Copyright © 2016 Author(s) retain the copyright of this article.
This article is published under the terms of the Creative Commons Attribution License 4.0


Nanopolyaniline (NPA) has been synthesized by chemical oxidative polymerization of aniline and characterized using Fourier transmission infrared (FTIR), X-ray diffraction (XRD) and ultra-violet visible techniques. XRD patterns confirm that NPA has crystallite size of 37 nm with monoclinic structure and UV-visible spectra indicate its band gap energy is 1.96 electron volts. Photocatalytic efficiency of as-synthesized NPA was studied using degradation of phenol as a probe. Effects of photocatalyst load, pH and phenol initial concentration on the degradation of phenol were investigated. Using phenol initial concentration (50 mg L-1) and optimum photocatalyst load (200 mgL-1) and pH 10, degradation of phenol at 3 h was 93.5%. Degradation of phenol follows first order kinetics with rate constant (k) 1.62×10-2 min-1.

Key words: Degradation, photocatalytic efficiency, polyaniline, phenol, X-ray diffraction (XRD).

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APA Fufa, T. O., Mengesha, A. T., & Yadav, O. P. (2016). Photocatalytic activity of nanopolyaniline (NPA) on phenol degradation. African Journal of Pure and Applied Chemistry, 10(3), 33-41.
Chicago Tesfa Oluma Fufa, Abi Tadesse Mengesha and Om Prakash Yadav. "Photocatalytic activity of nanopolyaniline (NPA) on phenol degradation." African Journal of Pure and Applied Chemistry 10, no. 3 (2016): 33-41.
MLA Tesfa Oluma Fufa, Abi Tadesse Mengesha and Om Prakash Yadav. "Photocatalytic activity of nanopolyaniline (NPA) on phenol degradation." African Journal of Pure and Applied Chemistry 10.3 (2016): 33-41.
   
DOI 10.5897/AJPAC2016.0690
URL http://academicjournals.org/journal/AJPAC/article-abstract/DB2901659678

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