Removal of methyl orange dye using(ZnO/MWCNTs) nanomaterial

Abstract

The (ZnO/MWCNTs) Nano composite had a composition of (0.8/0.018MWCNTs) (w/w). Batch adsorption method was used to remove Methyl orang dye from its aqueous solution. The structural characteristics of (ZnO/MWCNTs) were investigated (FTIR, XRD, BET,EDX,FE-SEM). The (ZnO) was discovered to have a 22 nm average particle size with surface area( 27.71m².g¯¹) . The (ZnO/MWCNTs ) was discovered to have a surface area(38.85m².g¯¹.). Adsorption equilibrium data was fitted with , Temkin equations to describe the isotherms, more than Freundlich,and Langmuir and Dubinin-Radushkevich isotherms. Thermodynamic studies showed that the adsorption was exothermic and spontaneous and pysisorption nature of adsorption .The pseudo-first and second order models were used to fit the kinetic data, adsorption process flow the pseudo-second-order adsorption.