Elucidation of mechanism involved in adsorption of Pb(II) onto lobeira fruit (Solanum lycocarpum) using Langmuir, Freundlich and Temkin isotherms

This manuscript entitled “Elucidation of adsorption mechanism of Pb(II) onto lobeira fruit (Solanum lycocarpum) using a Langmuir, Freundlich and Temkin isotherms” by Cleide Sandra Tavares Araújo et al. describes the sorption potential of lobeira fruit (Solanum lycocarpum) for removing Pb(II) from aqueous solution using a factorial experimental design as optimization strategy and Langmuir, Freundlich and Temkin models have been used to fit adsorption isotherms. The Solanum lycocarpum known popularly as “lobeira-do-cerrado”, wolf fruit or “jurubebão”, is a lignocellulosic typical species of the “cerrado” (kind of Brazilian savannah), with wide distribution, mainly in anthropized areas, has been little explored for adsorption studies. The optimization using a factorial design enabled the optimization of the procedure to be carried out with a reduced number of experiments, thus requiring a lower quantity of reagents and showed has advantages, such as, the low cost of sorbent, high efficiency and the minimization of chemical sludge. So allowed the adsorption of lead by lobeira fruit an inexpensive and easily available raw material may be used for different industrial applications to lower the cost of wastewater treatment and has potential applications for the removal of Pb(II) from wastewater. The sorbent is an alternative material for chemical remediation and is economic and environmental friendly.