《纳米硫化锌的表征及应用》-毕业论文设计（学术).docVIP

PAGE 湖南化工职业技术学院 毕??业??论??文 题 目: 纳米硫化锌的表征及应用 院系名称: 化学工程系 专业班级: 化工0916 学生姓名: 学 号: 200901020621 指导老师: （讲师） 2011年 11月 18日  摘要 本论文对纳米硫化锌的性质、应用及表征方法进行了详细综述,并在此基础上提出了在超声波作用下用氧化锌和硫化钠溶液反应合成纳米硫化锌的表征方法及纳米硫化锌的应用研究。纳米硫化锌材料在电学、磁学、力学、催化等领域呈现出许多优异的性能，其表征的方法也成为研究的重点。本文结合纳米硫化锌的实验制备方法对所制得的ZnS颗粒采用KYKY2800型扫描电镜(SEM)及红外光谱仪、热重分析、XRD、荧光发射光谱观察和测量样品的形貌和粒度。试验获得ZnS属于闪锌矿型构型，粒度分布均匀，分散性好，平均粒径为50nm；纯度高，XRD谱上基本没有其他任何杂质峰；具有良好的结晶性、红外透明性和良好的热稳定性，是一种优良的红外透光材料。产品纳米ZnS制备过程不需要添加任何表面活性剂，具有工艺简单、产率高、原料便宜、制备周期短的优点，并且有很好的产业化前景。 关键词：氧化锌；纳米硫化锌；表面活性剂；  Abstract: This paper LiuHuaXin nano the nature, application and characterization methods is reviewed in detail, and proposed in this foundation in ultrasonic role with zinc oxide and zinc sulfide colloid solution under reaction synthesizing nanometer LiuHuaXin characterization of the application of nano LiuHuaXin methods and research. Nano LiuHuaXin materials in electrical, magnetic, mechanics, catalytic etc presents many excellent properties and its manifestation method has become the focus of research. This paper LiuHuaXin nano preparation methods on the preparation of the type KYKY2800 ZnS particles scanning electron microscopy (SEM) and infrared spectrometer, thermogravimetric analysis, XRD,fluorescence emission spectrum observation and measurement of sample size and morphology. Test obtain ZnS belong to type sphalerite configuration, uniform particle size distribution, good dispersion, average particle size of 50 nm; High purity, XRD spectra of no other on basic impurity peak; Have good crystalline, infrared transparency and good thermal stability, it is a good infrared pervious to light material. Product nanometer ZnS preparation process dont need to add any surface active agent, has the simple process, high yield, and cheap raw materials, the prepar