Thermodynamic and kinetic parameters of ciprofloxacin adsorption onto modified coal fly ash from aqueous solution

► We have carried out the batch adsorption experiments for ciprofloxacin removal from aqueous solution using MCFA. ► The effects of various parameters on the adsorption system were investigated. ► The isotherm data fit well with the Langmuir model, and the kinetic data fit well with the pseudo-second order and intra-particle diffusion model. ► The negative ΔG and the positive ΔH indicated the spontaneous and endothermic nature of the adsorption.