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Preparation and characterization of micro porous activated carbon prepared from Prosopis Juliflora with chemical and thermal activation

Author Affiliations

  • 1Department of Chemical Engineering, National Institute of Technology, Tiruchirappalli-620015, Tamilnadu, India
  • 2Department of Chemical Engineering, National Institute of Technology, Tiruchirappalli-620015, Tamilnadu, India
  • 3Department of Chemical Engineering, National Institute of Technology, Tiruchirappalli-620015, Tamilnadu, India
  • 4Department of Chemical Engineering, National Institute of Technology, Tiruchirappalli-620015, Tamilnadu, India

Res. J. Engineering Sci., Volume 6, Issue (1), Pages 5-11, January,26 (2017)


Activated carbon (AC) was developed from Prosopis juliflora wood by carbonization, chemical activation followed by thermal activation. The raw material was carbonized at 600 0C, then impregnated with potassium hydroxide (KOH) followed by thermal activation at 800 0C. Chemical and physical properties like moisture content, volatile matter, ash content, surface area and porosity have been estimated to determine the quality of AC as an adsorbent. The resulting sample was characterized by nitrogen adsorption measurement at 77 K, obtaining BET surface area 748.914 m2/g, micro pore volume 0.163 cm³/g and pore size 1.55 nm which indicate that the activated carbon synthesized was micro porous in nature. The surface functional groups were investigated by Fourier transform infrared spectroscopy techniques. Thermo gravimetric analysis was carried out to determine the thermal stability of activated carbon with respect to temperature. The surface morphology of activated carbon was performed by Scanning Electron Microscopy. X-ray powder diffraction was used for identification of crystalline nature of the prepared activated carbon. The prepared sample can be used to remove organic and inorganic pollutants from Industrial waste water.


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