摘要
在常温条件下，以硫化钠和氯化镉为原料，利用液相膜反应法制备了具有良好水溶性的CdS量子点。利用XRD、TEM对所制备CdS量子点的结构和形貌进行了表征，结果表明制备的CdS量子点为立方闪锌矿型晶体，其结晶度良好，晶粒尺寸主要分布在3-5nm；UV-Vis测试表明CdS量子点在紫外可见区的吸收峰为229nm，出现强的蓝移现象，是量子限域效应所致。
A good water soluble CdS quantum dots were prepared through chemical reaction based on membrane （CRM）, by sodium sulfide and cadmium chloride as raw materials, under room temperature. The structure and morphology of CdS quantum dots were characterized by XRD and TEM. Results show that the CdS quantum dots are cubic sphalerite crystal which its grain size is mainly distributed in 3-5 nm. UV-Vis test shows that the absorption peak located in 229 nm, occuring strong blue shift phenomenon which is caused by the quantum confined effect by CdS quantum dots.
出处
《广东化工》
CAS
2016年第16期44-45,共2页
Guangdong Chemical Industry
基金
武汉市科技计划项目(201250499145-2和2013011001010480联合资助)
关键词
膜反应法
硫化镉
量子点
hemical reaction based on membrane（CRM）
cadmium sulfide（CdS）
quantum dots（QDs）
