IJNCSE - SPECIAL ISSUE - ICCER 2015

INTERNATIONAL JOURNAL OF NANO CORROSION SCIENCE ENGINEERING

SPECIAL ISSUE

ICCER 2015

ISSN :2395 – 7018


Research Article

TITLE :

REMOVAL OF CONGO RED DYE BY ADSORPTION USING ACTIVATED IPOMOEA CARNEA

AUTHORS

A. Kasthuria, P. Pandianb*, A. Peter Pascal Regisc, A. John Amalrajb, P. Johnraja

a. Department of Chemistry, Nehru Memorial College (Autonomous), Puthanampatti, Trichy District
b. Department of Chemistry, Periyar E.V.R. College (Autonomous). Trichy – 620 023
c. Department of Chemistry, St. Joseph’s College (Autonomous). Trichy – 620 002

ABSTRACT

Industrial discharges containing dyes are hazardous to all living organisms. In the present study, the activated carbonized form of natural plant material, ipomoea carnea leaves was used as an adsorbent for the removal of the Congo red dye from aqueous solution. Batch experiments were carried out using initial concentration, dosage, pH, contact time and temperature as operating variables. Equilibrium data were fitted to the Langmuir and Freundlich isotherms. Kinetic studies were conducted and the parameters were correlated with pseudo second-order kinetic model, Elovich model and intra-particle diffusion model. Thermodynamic parameters such as ΔG°, ΔH° and ΔS° were evaluated to prove the adsorption behaviour of Congo red dye onto acid activated ipomoea carnea. The results clearly suggest that this activated carbon can be used for the removal of Congo red dye from aqueous solution.


Key Words: Ipomoea carnea, Congo red dye, adsorption isotherm, equilibrium, thermodynamics, intra-particle diffusion.

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