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Uptake of Toxic Hexavelantchromium Element from Aqueous Solution by Annona Squamosa Carbon

Author Affiliations

  • 1Department of Chemistry, Gandhi Polytechnic College, Tamil Nadu, INDIA
  • 2Department of Chemistry Karpagam University, Coimbatore-641 014, INDIA

Res.J.chem.sci., Volume 3, Issue (4), Pages 36-43, April,18 (2013)


Annona Squamosa was used for the preparation of activated carbon for the removal of toxic elements like chromium (V1) from waste water. The effects of concentration of pH, temperature, adsorption capacity have been investigated. Adsorption capacity of Annona Squamosa activated carbon was showed highest value around pH=3. A direct proportionality between the percentages of Cr (V1) removal (86.11%) requested within 15 min from start of every experiment .The Adsorption kinetic data were tested using pseudo-first order, pseudo-second order, and Elovich and intra-particle diffusion models. Kinetics studies showed that the adsorption followed a pseudo second order reaction of Cr(V1) followed pseudo second order kinetics equations and fits the Langmuir, Freundlich , Tempkin and Elovich equation well Activated carbon developed from Annona Squmosa seed can be highly efficient option for Cr(V1) from wastewater showed better removal percentage of Cr (V1)1


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