均匀沉淀法制备不同粒径的纳米硫化锌

以硫代硫酸钠为硫源，采用均匀沉淀法研究了不同粒径纳米硫化锌的制备，讨论了反应温度、加热方式、反应物的浓度及物质的量比对其粒径的影响。研究结果表明：通过控制制备工艺条件，采用均匀沉淀法可以制备出平均粒径为4～24 nm、立方晶型的球形纳米硫化锌；制备工艺条件对纳米硫化锌的平均粒径有显著影响；加热方式对硫化锌的平均粒径影响较大，微波加热比水浴加热制备的硫化锌粒径小；此外，纳米硫化锌的粒径随着反应温度的增加、反应物浓度的增加、醋酸锌和硫代硫酸钠物质的量比的减小而减小。

Preparation of nano-sized zinc sulphide with different sizes by homogeneous precipitation method

Using sodium hyposulfite as sulphur source,the preparation of nano-sized zinc sulphide with different sizes was studied by homogeneous precipitation method,the influences of reaction conditions,such as reaction temperature,heating mode,concentration,and amount-of-substance ratio of the reactants,on nano-sized zinc sulphide sizes were discussed.Results showed that through controlling the preparation conditions,cubical nano-sized zinc sulphide with the average size at 4~24 nm can be prepared by homogeneous pr...