摘要
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。
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 precipitation,and its shape was approximative spherical;preparation conditions had notable effect on the sizes of nano-sized zinc sulphide;effect of heating modes on the sizes was remarkable,and the particle size was larger through water bath heating than that through microwave;furthermore,the size of nano-sized zinc sulphide particle decreased with the decreasing of the amount-of-substance ratio of zinc acetate to sodium hyposulfite,with the increasing of reaction temperature and concentration of reactants.
出处
《无机盐工业》
CAS
北大核心
2011年第7期13-15,共3页
Inorganic Chemicals Industry
基金
国家自然科学基金项目资助(20773092)
关键词
纳米硫化锌
均匀沉淀
硫代硫酸钠
微波
nano-sized zinc sulphide
homogeneous precipitation
sodium hyposulfite
microwave
