Nanotube synthesis from reaction of 4-chloro phenoxy acetate with zinc layered hydroxide
Keywords:zinc oxide, nano materials, 4-chlorophenoxy acetic acid, intercalations
AbstractObjective Intercalations of plant growth regulator 4-chloro phenoxy acetate (4CPA) with zinc oxide (ZnO), developed using ZnO-layered
hydroxide (ZLH) as host material and 4CPA as a guest.
Methods Ion exchange technique via sol-gel method synthesized under aqueous environment, resulted in the formation of inorganicâ€“
organic nanotube materials.
Results The release of 4CPA from its nanohybrid was found to occur in a controlled manner, governed by pseudo-second order kinetics
model. The maximum amount of 4CPA released was governed by pseudo-second order kinetics model. Powder X-ray diffraction showed
that the basal spacing of the nanohybrid was developed with the increasing of 4CPA concentrations; the maximum concentration of 0.2M
shows an interlayer basal of 1.9 nm. FTIR study showed that the intercalated 4CPA-ZnO spectral feature is generally similar to that of 4CPA,
but with bands sightly shifted due to the formation of hostâ€“guest nano tubes.
Conclusion The resulted nano tubes were characterized by using scanning electron microscopy (SEM), and transmission electronic
microscope (TEM), shows a uniform nanoparticles and monodisperse with average diameter of 35 nm, which correlated a very well with
size scale obtained from XRD data. The development of crystals is the function of concentrations.