Synthesis And Elementary Study On The Potential Applications Of Several Inorganic Oxide Nanorods

The purpose of this dissertation is finding relatively mild synthetic conditions to prepare one-dimensional inorganic nanomaterials.Referred to a great deal of literatures,several one-dimensional nanomaterials such as Mg(OH)₂ nanorods, MoO₃ nanorods,CO₃O₄ nanorods have been successfully synthesized on a large scale,by selecting suitable reactants,reacting systems and technology,under mild synthetic conditions.The structures and morphology were investigated by a variety of techniques,including x-ray powder diffraction(XRD),transmission electron microscopy(TEM),scanning electron microscopy(SEM),high resolution transmission electron microscopy(HRTEM) and other modern testing techniques. In addition,the possible mechanisms for the formation of the above one-dimensional inorganic nanomaterials were also discussed,and the potential applications of the as-synthesized MoO3 nanorods as photo-catalyst in degradation of methyleneblue were also investigated.The major contents can be summarized as follows:1.Single-crystal Mg(OH)₂ nanorods were fabricated in large scale through a low-temperature aqueous-chemical reaction route,using the magnesium hydroxide sulfate hydrate nanorods,synthesized through the reported route,as self-sacrificial templates.2.The metastable single-crystal hexagonal MoO₃ nanorods had been successfully synthesized on a large scale for the first time via a simple aqueous-chemical approach under mild synthesis conditions,and the potential applications of the as-synthesized MoO₃ nanorods as photo-catalyst in degradation of methyleneblue were also investigated.The result showed that as-synthesized MoO₃ nanorods was an excellent photo-catalyst in degradation of methyleneblue, and the degradation rate of the methyleneblue could reach to 94.7%under our experiments.3.Single-crystalline Co₃O₄ nanorods were prepared in large scale using the pre-prepared Co(OH)₂ nanorods as self-sacrificial templates.