Combinatorial Approach To Synthesize And Optimize Metal Sulfide And Lanthanide Oxide Nanometer Materials

Combinatorial approach is the hotspot in the material and chemistry field nowadays. Compared with traditional approach, the advantage of combinatorial approach is its high efficiency, short-timing, low cost, and it can also greatly enhance the probability of discovering new materials with special capability.This paper first innovatively combined combinatorial approach, orthogonal design with the synthesis of nanometer materials, which prepared and optimized metal sulfide and lanthanide oxide nanometer materials quickly. This approach not only increased efficiency but also obtained new materials which can not be gained by traditional approaches.1. This paper designed several conditions of Ag-doped metal sulfide nanometer materials system with orthogonal design. Combinatorial approach was used to prepare several Ag-doped ZnS and CdS nanometer materials systems, and then selected several key samples according to luminescence performances. After that, the optimized Ag-doped ZnS sample with its shape of an olive composed by nano-particles and Ag-doped CdS sample with its shape of a flower composed by nano-crystals were obtained. The result indicated that these two semiconductor nanometer materials with excellent luminescence performances and special shapes were difficult to obtain through traditional approach.2. This paper designed several conditions of Tb-doped lanthanide oxide nanometer materials system with orthogonal design. Combinatorial approach was used to prepare a series of Tb-doped Gd₂O₃ nanometer materials system, and then selected several key samples according to their different luminescence performances. Finally, the Tb-doped Gd₂O₃ nanometer material with excellent structure and unique shape was gained. The result indicated that the factors influenced the luminescence performance, structure and shapes greatly, which can not be easily obtained by traditional approach, even can not be found at all.This paper was a preparatory observation and a new attempt, which fully exert the advantage of combinatorial approach. It can offer a great idea in exploring and preparing new materials.