在脱硫肠状菌作用下,均匀的纳米PbS颗粒能够在温和的条件下合成,并利用TEM和XRD对所得产物进行了详细的表征,考察了制备过程中pH值和温度对产物的物相和形貌的影响.结果表明:不同温度下制备的PbS晶体具有相同的结构、形状和大小,但是随着pH值的增加,产物的形状由杆状逐渐变为球状.在生物法合成纳米PbS的过程中,脱硫肠状菌能利用硫酸盐作为最终电子受体产生硫化物,作为纳米PbS合成的硫源. Under the action of desulfurization enterobacteriaceae, uniform nano-PbS particles can be synthesized under mild conditions, and the products were characterized by TEM and XRD. The effects of pH and temperature on the phase and The results show that PbS crystals prepared at different temperatures have the same structure, shape and size, but with the increase of pH value, the shape of the product gradually changes from rod to sphere.In the synthesis of PbS During the process, S. desulfuriculosum can utilize sulfates as the final electron acceptor to generate sulfides as the sulfur source for the synthesis of nano-PbS.