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IJCT Vol.13(1) [January 2006] >


Title: Use of jackfruit peel carbon (JPC) for adsorption of rhodamine-B, a basic dye from aqueous solution
Authors: Inbaraj, B Stephen
Sulochana, N
Keywords: Adsorption
Rhodamine-B
Jackfruit peel
Carbon
Kinetics
Isotherms
Issue Date: Jan-2006
Publisher: CSIR
IPC CodeInt. Cl.7 C09B61/00
Abstract: A carbon sorbent derived from an agricultural waste, jackfruit peel was applied to study the removal of a basic dye, rhodamine-B from aqueous solution. Batch experiments were performed as a function of process parameters like agitation time, initial dye concentration, temperature, carbon dose and pH. Modified Ritchie second order equation better predicted the kinetic results compared to other rate equations (pseudo first order and pseudo second order) tested. Among the isotherm models applied to the equilibrium data Redlich-Peterson model better predicted the experimental values. The adsorption capacity was 121.47 mg g-1 at an initial pH of 6.0 and at 32 ± 0.5°C. The adsorption capacity increased with increase in temperature. The influence of pH on dye removal was not significant. An optimum carbon dose of 1.2 g L-1 was required for the maximum removal (96%) of dye from its 60 mg L-1 solution. A significant portion of the dye was recovered from the spent carbon using 50% acetic acid.
Page(s): 17-23
ISSN: 0975-0991 (Online); 0971-457X (Print)
Source:IJCT Vol.13(1) [January 2006]

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