Research On The Synthesis Of Nanomaterials Via Hydrothermal/Solvothermal Route

Synthesizing nano-materials by hydrothermal/Solvothermal method is a noticeable field in material science. By this friendly method, well discreted and crystalline nanoparticles can be prepared, as well as toxic reaction can also be taken in this system. Nowadays, synthesizing new compound and exploring new synthesis route are the focus of the hydrothermal/solvothermal method. In this paper, different experiment routes and the reaction conditions in hydrothermal/solvo-thermal method were researched, by which kinds of metal sulfide nanomaterials with different structures and morphologies as well as single crystal were synthesized.CuS nanomaterials with different morphologies were obtained by adjusting the reaction temperature using non-ionic surfactant PEG-20000 as structure-directing agent. It has been observed that the surfactant PEG-20000 really influenced the growth direction of the products. The products with different morphologies and optics character were obtained in the different reaction temperature and solvent.Besides, mesoporous ZnS nanomaterials, seldom reported, was prepared employing building block copolymer as structure-directing agent using low teperature alcothermal method. The ZnS products had good crystal, well organized pore-structures, high surface area of 252m2/g, and narrow pore distribution. What is more, the products remained relatively high surface area 99m2/g even after calcined at 800℃.And the polycrylic acid was considered to be used as the structure-directing agents for the organic growth, by which flake-like CdS and rod-like PbS nanomaterials were prepared. It can be concluded that in the different solvents and to different kind of organic the...