Preparation Of The Porous Metal Oxide Nano Solid And Its Composite Nature Of The Light-emitting Materials Research

In this thesis, ZnO bulk porous nanosolids were prepared by a novel solvothermal hot press (STHP) method for the first time using ZnO nanoparticles with different pore-forming agents including deionized water, various surfactant solution. Polymer as template is introduced to improve the pore diameter uniformity of theZnObulk porous nanosolid. In addition, A100H porous nanosolid has been successfully prepared by the same method using Al₂O₃ nanoparticles as the starting material with deionized water as pore-forming agent. By the method of pressure-driving assembling, we have successfully prepared AlOOH/DBASVP, AlOOH/Alq₃ and AlOOH/8-HQ composite fluorescent materials. During the assembling process, the organic fluorescent molecules enter the pores of the A100H porous nanosolid to form the above composite fluorescent materials. We have characterized these composite materials and explained the possible reason.First, we have prepared ZnO bulk porous nanosolid by STHP method using ZnO nanoparticles with deionized water as pore-forming agents. The results show that, with the increase of the amount of deionized water, the pore diameter of ZnO bulk porous nanosolid is enlarged and its surface area and porosity increase correspondingly.In order to improve the pore diameter uniformity of the ZnO bulk porous nanosolid, we add a little of octylamine into deionized water. The results show that, surface area and porosity of the ZnO bulk porous nanosolid decrease and its pore diameter range is narrowed at the beginning. Later, with the increase of the amount of octylamine, surface area and porosity of the ZnO bulk porous nanosolid increase gradually.We further investigate the influence of cationic surfactant CTAB solution on the structure of ZnO bulk porous nanosolid. The results show that, the pore diameter is enlarged greatly when CTAB solution is used as pore-forming agent compared with deionized water. When the concentration of CTAB solution is low, the range of pore...