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In recent years, nanomaterials, especially one-dimensional structure of nanomaterials, such as nanorods, nanotubes, nanowires, due to its unique topography, the nature of the special sizes and optoelectronic properties and attractive in catalysis application prospects become a hot research topic. The one-dimensional nanomaterials important theoretical significance and potential broad application prospects making it the cutting edge of physics, chemistry, materials research disciplines. Development of new methods, preparation of one-dimensional nanomaterials to develop the new system is a very important research topic. By a simple synthesis method, controlled synthesis of the hot spots of the one-dimensional structure of nano materials has been studied. The hydrothermal method is a chemical synthesis method based on the solution, is an effective and convenient way of synthesis of nanomaterials. This method is highly efficient, convenient, does not require an inert atmosphere, and expensive equipment. Has been widely used in the synthesis of the one-dimensional structure of nano-materials, zeolites, and ceramic materials. This is one of the most promising method of controlling the particle size, size distribution and material morphology. This article aims to a mild hydrothermal method was used to prepare Ag @ C nanocables optimal experimental conditions, to explore the formation mechanism and preparation the Ag @ C/CeO2 composite photocatalyst in recent years, with the world-wide environmental The problem is growing, semiconductor multiphase light application of the catalytic reaction in the environmental insurance protection has attracted wide attention. The details are summarized as follows: First, we have a silver line growth through the supporting role of sulfuric acid and mild hydrothermal method for nuclear, carbon layer do not need to add any surfactant shell Ag @ C nanocables experimental. In our experimental system to study the temperature and the concentration of sulfuric acid experiments and explore the preparation of ultra-long, high-yielding Ag @ C nanocables best conditions and propose a possible mechanism for the synthesis of Ag @ C nanocables. Hydrothermal test, glycerin can be used as a reducing agent and a carbon source, while the sulfuric acid can not only help propanetriol carbonization and can assist the growth of the silver wire. By XRD, scanning microscopy, transmission microscopy and high-power transmission microscope, TG, IR, UV and magnetic analysis to characterize the morphology and structure of the sample as well as the performance test found good iron at room temperature Ag @ C nanocables magnetic properties. This green, without the surface active agent may be used in future synthesis and function of CFC nanomaterials, using ethylene glycol instead of glycerine same hydrothermal synthesis synthesis silver wire as the nuclear carbon layer shell Ag _AT_ C Nanocable , a detailed examination of the process of hydrothermal reaction temperature on the morphology, to explore the mechanism of its formation. Using X-ray diffraction (XRD), scanning electron microscopy, transmission electron microscopy, and UV-visible spectroscopy, Raman spectroscopy, and other means of one-dimensional Ag @ C nanocables were characterized and analyzed. The XRD results show that the obtained product is a face-centered cubic phase structure of the silver. SEM and TEM results show that the resulting one-dimensional Ag @ C nanocables tens of microns in length, diameter of about 90nm products as a single crystal. UV-VIS studies have shown that one-dimensional Ag @ C nanocables strong absorption at 405nm. Ethylene glycol as a reducing agent, the prepared the one dimensional AG _AT_ C Nanocable morphology integrity, homogeneity best. 3, rare earth oxides having a polymorph, the strong absorption and stability characteristics, and in China has a large amount of storage, CE02 as the n-type semiconductor, the light absorption threshold of about 420nm and higher than the currently most commonly used semiconductor materials Ti02 while its lattice O2-ions are more prone to missing, resulting in a higher concentration of the electron in the Ce02 crystal, it has a faster interface electron transfer reaction by the photoexcitation, together with its excellent adsorption oxygen and oxygen-releasing performance greatly reduced the easy recombination rate of the photo-generated electrons and holes, it may have good photocatalytic properties of this chapter to the rare earth salts Ce (NO3) 3.6 H2O as raw materials, prepared by hydrothermal method the Ag @ C/CeO2 complex compounds, and Photocatalytic degradation experiments show the Ag @ C/CeO2 composite catalyst, found that compared with pure Ce02, Ag @ C/CeO2 better photocatalytic activity is a high concentration organic wastewater treatment in the methylene blue solution obtained new, efficient, inexpensive catalyst.
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