水热法制备均分散的硫化锌纳米晶聚集体  

Hydrothermal Synthesis of Monodispersed ZnS Nanoparticles

作　　者：李兰英[1] 郭峰[1] 古国华[1] 付洵[1] 胡正水[1] 

机构地区：[1]青岛科技大学化学与分子工程学院,山东青岛266042

出　　处：《青岛科技大学学报（自然科学版）》2005年第3期211-214,共4页Journal of Qingdao University of Science and Technology:Natural Science Edition

摘　　要：利用自制的月桂酸硫脲咪唑啉季铵盐(SUDEI)作为表面活性剂,在水热条件下制备出了均分散的面心立方β闪锌矿结构的ZnS纳米晶聚集体,聚集体粒径为20～50nm。通过透射电子显微镜、粒度分布仪、XRD和紫外可见吸收光谱等手段对硫化锌粒子进行了表征。得到制备均分散ZnS纳米晶聚集体的最佳条件为,月桂酸硫脲咪唑啉季铵盐2g·L-1,cZn2+=0.016mol·L-1,150℃放置12h,填充度为60%。In this paper, with quaternary ammonium salt of 2-undecyl-1-dithioureido-ethyl-imidazoline (SUDEI) as surfactant, the monodispersed face-centered cubic β-sphalerite ZnS nanocrystal aggregates with average size of about 20～50 nm were synthesized through hydrothermal method. The obtained ZnS nanocrystal aggregates were characterized by TEM, particle size measurement, XRD and UV-Vis. The optimum conditions for the preparation of monodispersed ZnS nanocystal aggregates were also gained.

关 键 词：硫化锌 表面活性剂 均分散 纳米晶聚集体 

分 类 号：TQ131[化学工程—无机化工]