Abstract
Jatropha curcas is an important plant for production of bio-diesel. Jatropha husk, an agro-industrial solid waste, is used for the production of carbon activated by treatment with zinc chloride (ZnCl2-activated jatropha husk carbon, ZAJHC); the obtained material is applied to adsorb phenol from wastewater. Adsorption kinetics are of second order. Adsorption equilibrium data are analyzed using Langmuir, Freundlich, and D–R isotherm models for phenol concentrations of 20–100 mg L−1. Langmuir adsorption capacity was found to be 49 mg g−1. X-ray diffraction and scanning electron microscopy analyses provide essential details about the surface of ZAJHC.
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