Equilibrium and kinetic studies of methylene blue and rhodamineb onto prepared activated kaza’s carbons.

Three Activated Kaza’s Carbons viz. NPTC, NLLC andNCC, are prepared from some Bio- Materials – Phaseolus trilobus, Leucena leucocephala and Casurina. These carbonsare used to adsorb dyes Methylene blue and Rhodamine B from aqueous solution. Adsorption equilibrium data and kinetic processes were studied. The Langmuir isotherm provides the best correlation for the experimental data, where as Temkin and Dubinin – Radushkevich (D-R) isotherms also fit to the experimental data. In the kinetic studies the best fit Model was assessed by the squared some of errors (SSE) values. Adsorption of dyes, Methylene Blue ( MB ) and Rhodamine B ( RB ) ,on to adsorbents could be described by pseudosecond order equation. The adsorption process has good co-ordinance with pore diffusion and Elovich equations.

Preparation of activated kaza’s carbons from bio-materials and their characterization.

Prepared three different activated carbons from parts of three different bio-materials viz., Phaseolus trilobus, Leucena leucocephala and Casuarina collected from agricultural field. In the present study phsicochemical and surface characterstics of these prepared carbons have been discussed. For surface characterization FTIR and EDAX methods were used.