摘要
以硝酸锌和硫化氢为原料,在超重力旋转床(RPB,Rotating Packed Bed)中首次制备了球形、粒径分布较窄、分散性较好的闪锌矿纳米硫化锌粒子,平均粒径为30nm,转化率97.5％;研究了陈化时间对粒子形貌和大小的影响.并采用TEM、紫外可见光分光光度计、XRD等手段对产品的形貌、紫外吸收性能及晶相进行了表征.
By using zinc nitrate and hydrogen sulfide as source materials, nanometer zinc sulfide was synthesized by a high gravity method in a rotating packed bed. The effect of aging time on product sizes was investigated and 48h was chosen. Well-dispersed nanometer zinc sulfide particles with a sphalerite crystal phase were prepared. The crystal structure, optical properties, size and morphology of the product were also characterized by XRD, UV-Vis spectrophotometer and TEM. The results show that the average particle size of ZnS obtained is about 30nm and the conversion rate is 97.5 percent..
出处
《无机材料学报》
SCIE
EI
CAS
CSCD
北大核心
2003年第6期1362-1366,共5页
Journal of Inorganic Materials
基金
教育部科学技术研究重大项目(重大0202)
中新国际合作项目(S2001-04)
关键词
超重力旋转床
纳米硫化锌
制备
high gravity
rotating packed bed
nano-ZnS
preparation
