3 research outputs found
Effect of ZnO Nanoparticle and Hexadecyltrimethylammonium Bromide on the Dynamic and Equilibrium Oil–Water Interfacial Tension
The
effect of ZnO nanoparticles on the dynamic and equilibrium
interfacial tension in the presence and absence of cationic surfactant
CTAB was investigated. The results show that nanoparticles solely
have no effect on interfacial tension. However, in the presence of
CTAB, both particles and surfactants are adsorbed at the interface,
and by a synergistic effect decrease the interfacial tension more.
The effect of ZnO nanoparticles on the contact angle and stability
of emulsions was studied too. The dynamic interfacial tension data
were fitted with two different models. The results show that the adsorption
mechanism of surfactant from bulk to interface was controlled by the
mixed diffusion-kinetic model