| The aim of this dissertation is to explore the synthesis of phosphates nanomaterials and molybdates micromaterials by solvothermal method. The as-prepared phosphates nanomaterials and molybdates micromaterials are characterized and their growth mechanism is also investigated. The major contents can be summarized as follows:1. Solvothermal process to synthesize hexagonal phase BiPO4 nano-cocoons and monoclinic phase BiPO4 nanorods. By using Bi(NO3)3 and NaH2PO4 as the reaction materials, without the presence of any surfactants or polymers, hexagonal phase BiPO4 nano-cocoons with the sizes of 100-150nm, monoclinic phase BiPO4 nanorods with diameters of 50-150 nm, lengths of 0.5-1.0μm have been successfully prepared. The phase and morphology evolution from the initially formed hexagonal phase nano-cocoons to monoclinic phase BiPO4 nanorods were investigated by studying intermediate products of different reaction time. The similar phase transformation from hexagonal phase BiPO4 to monoclinic phase BiPO4 in the hydrothermal condition at 160°C was also observed, accompanying with a morphology transformation from nanorods to octahedron-like microcrystals. Moreover, we found that the volume ratio of glycerol and water had a great impact on the shapes of finial products. Experimental results revealed that BiPO4 nanostructures exhibited photoluminescence properties.2. Cocoon-like CaMoO4 microstructures and peanut-like SrMoO4 mirostructures constructed from nanocrystals have been solvothermally synthesized in a binary solution of glycerol and water. A shape evolution of ripening-cleavage-oriented aggregation can be observed in the growth process of CaMoO4 cocoon-like and SrMoO4 peanut-like microstructures. It was found that the amount of reactants and the volume ratio of glycerol to water in the solvothermal condition had a great impact on the shapes and sizes of the products. The photoluminescence properties of cocoon-like CaMoO4 and peanut-like SrMoO4 architectures were also investigated.
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