生物大分子控制的硫化铅纳米结构材料的合成

摘要

本文在常温,常压,自然pH条件下,利用常温沉淀方法,以生物大分子为模板,矿化合成了硫化物新型形貌纳米结构材料.以硝酸铅(Pb(NO3)2)和硫代乙酰胺(TAA)为原料,进行了矿化实验,实验结果采用扫描电镜(FESEM)、表面能量色谱分析(EDS)、X射线衍射(XRD)、红外光谱(FTIR)等表征分析,结果表明,以鱼精DNA为模板,得到了长棒、短棒、花状结构的PbS纳米结构；以牛血清白蛋白(BSA)为模板,得到了纳米立方体PbS纳米结构,制得的PbS微纳米晶属于面心立方晶系.%This paper we respectively use biological macromolecules(the fish DNA and pure BSA)as the template,receiving various morphology controllable sulfide nanometer material,Pb(NO3)2 and TAA as starting material,while changing the template concentration. The samples were characterized by XRD, the agarose electrophoresis, FESEM, FTTR and EDS. The results show that the PbS belongs to cubic crystal system. Nano-cube structure PbS,This paper puts forward new sulfide preparation methods,obtaining some interesting results using biological macromolecules as templates preparation of nanomaterial.