Preparation And Adsorption Performance Of Features Nanocoposites

In recent years, with the rapid development of technology,as water pollution problems emerge, purifying waste water has become a serious problem. Nanofiber material, as well as having a great surface area andmany microporous structure at the nano fiber membrane formation, exhibit strong absorption capacity, which received more and more attention. We designed and synthesized a variety of nano-composite materials, resin composites, respectively, core-shell nanocomposites and nano fiber material, and focuses on the study of these nanocomposites wastewater adsorption properties.Resin composite material is obtained by immobilized chitosan to the macroporous cation exchange resin, then we study the adsorption properties of this new material for copper ions in water.Experimental results show that in the presence of high solubility of competition ion, the composite adsorbent exhibits excellent adsorption selectivity for the copper ion.Moreover, the adsorption saturation nanocomposite adsorbent material can efficient regeneration and reuse in a mixed solution of HCl-NaCl.hierarchical core–shell manganese oxide nanocomposites were synthesized via a facile hydrothermal process.Theobtainedspherical or sea urchin composite material has more nano-thin slices loose pore structure, which makes its dye adsorption showed good adsorption properties. This microstructure and good adsorption properties make the composite material with a very high research value.And magnetic nanocomposite Fe₃O₄@ MnO₂ easily recycled, reusable, and can be used for long-term use of water purification.PVA/PAA/GO-COOH ternary composite fiber prepared material by electrospinning,and the morphology and composition of composite fiber material were characterized.The heat-treated fibers turn into a non-aqueous water-soluble, and no change in topography.Polydopamine then coated on the surface of the fiber membrane, which can be clearly seen in SEM that Polydopamine particles uniformly distributed in the surface of the fiber.In the organic dyes MB, CR and RhB adsorption experiments, experiments show that the preparated composite fibematerial has good adsorption properties to methylene blue.