Protic ionic liquid-induced changes in the properties of aqueous triton X-100-CTAB surfactant solution: Solvent and rotational relaxation studies

► Protic ionic liquid was used for modifying properties of mixed micellar solutions. ► Size of the mixed micellar aggregates increases with DAF addition. ► The ζ potential increases with increasing mole fraction of CTAB. ► The average solvation time decreases with increasing CTAB/Triton X-100 ratio. ► The average solvation time increases with the addition of DAF.