Super Hydrophobic And Super Hydrophilic Oil Film Magnetic Nano-materials Preparation And Invasive Research

Combined with the bionic technology and nanotechnology, bionic nano superhydrophobicmaterials have been made and been used many important applications. This paper mainly studiesthe relationship between surface topography and wettability of the super hydrophobic nanometerZnO thin film, super hydrophobic and super oil wet magnetic nanoparticles and aluminatemplate. The main contents are as follows:1. As we all know, the ZnO nanorods can self-assemble into flower aggregates along thespecific direction in mild reaction conditions. By changing the formtion of the nanorodsenvironment of reaction solution, it can effectively control the growth of ZnO nanorodsmorphology. When the concentration of the reaction liquid change from low to high, thegrowth of ZnO nanorods begin by a single rod self-assembly into flower aggregate by self-assembly method, the surface roughness are also gradually increasing, meanwhile thehydrophobic gradually turn into a super hydrophobic by organic fluorine reagen modification.When the concentration of reaction solution reach the maximum, the formation of ZnOnanorods aggregate reaches the maximum, the thin film surface roughness begin to decrease,the wettability between the droplet and water begin to reduce and thus also from large to smallcontact angle. This article mainly studies the relationship between wettability and surfacemorphology by controlling the surface morphology of ZnO nanorods films. By changing thesurface roughness to change their wettability.2. The magnetic cobalt and nickel nanoparticles with different morphology have beensynthesied. The synthesized nickel nano particles have two different morphology,oneissphericity,and another is the surface with bald up. After modification, the nickelnanoparticles film of a bald on preparation has a better hydrophobicity, the wettability smaller.Different surface morphology with different roughness causes the different hydrophobicity.Meanwhile, the synthesized cobalt nanoparticles with petal shaped fully show the good super hydrophobic.Thin film of the preparation of these particles and the particles have a good superhydrophobic, but has a strong adsorption to the oil droplets. By taking advantage of theseproperties, it can be used through the external magnet method to efficiently move the particlesof oil in water pollution treatment. We find the water droplet absorption become stronger,when the magnetic particles are pressed into the block body material.This paper mainlystudies the relationship between the wettability and topography of the magnetic nanoparticleswith different morphologies, and apply its application to water treatment.3. The preparation of alumina templates have different pore sizes by using the differentelectrolyte in secondary oxidation process. They show the different hydrophobicity aftermodification. At the same time, changinging the widening time also get different hydrophobictemplates. In the deposition process, we control the reduction time in deposition to get differentmorphology of Fe nanowire.They also show different super hydrophobic. This paper mainlystudies the relationship between alumina template surface topography and wettability.