Kinetics, isotherms and thermodynamic modeling of liquid phase adsorption of Rhodamine B dye onto Raphia hookerie fruit epicarp

Highly efficient low cost adsorbent was prepared from Raphia hookerie fruit epicarp. Characteristics of the prepared low cost adsorbent (RH) was established using scanning electron microscope (SEM), Fourier Transform Infra Red (FTIR) and Brunauer–Emmett–Teller (BET) surface area. RH was applied for Rhodamine B (RhB) uptake from aqueous solution. Equilibrium adsorption data were fitted using four isotherms and kinetic data tested with five kinetic models. The BET surface area obtained was 0.00351 m^2/g; SEM reveals large pores that could enhance the uptake of large molecules. Freundlich isotherm
\nbest described the uptake of RhB onto RH, the maximum monolayer adsorption capacity (qmax) was 666.67 mg/g.…