Abstract

Kalyana Sundaram Parvathi¹, Thirumalaisamy Santhi^1*, Mayilsamy Makeswari², Vellaiswamy Nirmaladevi³, Ramasamy Rathinam⁴

DOI : http://dx.doi.org/10.13005/ojc/380114

The phosphoric acid activated Ricinus communis stem carbon (PRCS) is used to degrade methyl red dye from aqueous solution under solar light irradiation The studied Physiochemical properties, surface morphology, elemental composition and crystalline nature of PRCS are reported. The optimum experimental conditions are fixed by optimizing the experimental parameter such as contact time, pH, carbon doses and dye concentration. The maximum degradation efficiency of MR by UV spectroscopy found to be 82.79 % at pH 3, 0.25 gm of PRCS, 90 min irradiation time and dye concentration of 20 ppm. Adsorptive and photo catalytic degradation of dye explained by isotherm and kinetic studies. From the results it is clearly evident that PRCS could be used as an ecofriendly photo catalyst for the removal of dyes from waste water.

Activated charcoal; Degradation; Methyl red dye; PRCS; Ricinus communis

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