生物大分子控制的硫化铅纳米结构材料的合成

Synthesis of PbS nano-material controlled by biomacromolecule

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 concentra- tion. The samples were characterized by XRD, the agarose electrophoresis, FESEM, FTIR 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.