Effect of Surface Oxygen Complexes of Activated Carbon on the Adsorption of 2,4,6- Trinitrophenol

  • Preeti Aggarwal Centre for Environment & Explosives Safety, Delhi
  • Kshipra Misra Centre for Environment & Explosives Safety, Delhi
  • S. K. Kapoor Centre for Environment & Explosives Safety, Delhi
  • A. K. Bhalla Centre for Environment & Explosives Safety, Delhi
  • R. C. Bansal Panjab University, Chandigarh
Keywords: Activated carbons, Adsorption isotherms

Abstract

The adsorption isothenns for 2,4,6-trinitrophenol (picric acid) on five samples of coconut-based activated carbons (ACs) with varying. surface area have been studied. The results obtained show thatadsorption depends upon surface area but is not linearly related to it. The adsorption increases on oxidation with ammonium persulphate (NH4)2 S2 08) as well as on degassing at 600 °C. The resultshave been explained on the basis of the existence of surface carbonyl groups, where the 02 of thecarbonyl group interacts with pi electrons of the benzene ring of picric acid.

Author Biographies

Preeti Aggarwal, Centre for Environment & Explosives Safety, Delhi
Centre for Environment & Explosives Safety, Delhi
Kshipra Misra, Centre for Environment & Explosives Safety, Delhi
Centre for Environment & Explosives Safety, Delhi
S. K. Kapoor, Centre for Environment & Explosives Safety, Delhi
Centre for Environment & Explosives Safety, Delhi
A. K. Bhalla, Centre for Environment & Explosives Safety, Delhi
Centre for Environment & Explosives Safety, Delhi
R. C. Bansal, Panjab University, Chandigarh
Panjab University, Chandigarh

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Published
2013-01-01
How to Cite
Aggarwal, P., Misra, K., Kapoor, S., Bhalla, A., & Bansal, R. (2013). Effect of Surface Oxygen Complexes of Activated Carbon on the Adsorption of 2,4,6- Trinitrophenol. Defence Science Journal, 48(2), 219-222. https://doi.org/10.14429/dsj.48.3902
Section
Armaments & Explosives

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