超重力法制备纳米硫化锌  

Preparation of Zinc Sulfide Nano-particles by High-Gravity Method

作　　者：李亚玲[1] 王玉红[1] 陈建峰[1] 甄崇礼 

机构地区：[1]北京化工大学教育部超重力工程研究中心,北京100029 [2]新加坡纳米材料科技有限公司,新加坡139944

出　　处：《无机材料学报》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)

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..

关 键 词：超重力旋转床 纳米硫化锌 制备 

分 类 号：TB383[一般工业技术—材料科学与工程] TQ132[化学工程—无机化工]