Effective removal of methylene blue, a hazardous dye from industrial effluents using active carbon of F.infectoria plant

  • S. Ravulapalli
  • R. KuntaEmail author
Original Paper


Activated carbon prepared from the barks of F. infectoria is investigated as an adsorbent for the extraction of methylene blue dye from industrial wastewater using batch methods of adsorption. Influence of different physicochemical parameters on the adsorptive removal of dye is investigated and the conditions are optimized. The maximum adsorption ability for the adsorbent is noticed as 151.6 mg/g. Surface morphology of the adsorbent is studied using field emission scanning electron microscope, Fourier transform infrared spectroscopy and Brunauer–Emmett–Teller techniques. The adsorption mechanism is analyzed by various adsorption isotherms and kinetic models. Investigation of thermodynamic parameters reveals the endothermic and spontaneous nature of the extraction process. The spent adsorbent is regenerated and reused for the extraction and noted the adsorption capacity is marginally affected due to regeneration. The method is applied for purifying the dye-contaminated samples from the industrial effluents.


Active carbon F. infectoria plant Methylene blue dye Adsorption Regeneration Adsorbent 



The authors thank the Koneru Lakshmaiah Educational foundation for providing the needed facilities to conduct the present work. The authors thank the Particulate materials laboratory, MEMS Department, IIT Bombay for facilitating the instruments for the characterization of samples in this work. The authors thank Dr. G. V. Krishna Mohan for providing the instrumentation facilities, sanctioned by MoEF (Ministry of Environment and Forests).


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Copyright information

© Islamic Azad University (IAU) 2018

Authors and Affiliations

  1. 1.Koneru Lakshmaiah Education FoundationVaddeswaram, Guntur DistrictIndia

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