醇溶剂粘度对N,N′-(2,4-二氯苯基)硫脲/CdS纳米复合材料形貌及性能的影响

Effect of Alcohol Solvent on Morphology and Properties of N,N′-(2,4-Dichlorophenyl)Thiourea/CdS Nanocomposites

采用液相原位沉淀法,在不同的醇-水混合溶剂中反应合成了N,N′-二(2,4-二氯苯基)硫脲/CdS纳米复合材料。通过扫描电子显微镜分析(SEM)、X射线衍射分析(XRD)、傅里叶变换红外光谱分析(FT-IR)、紫外可见吸收光谱分析(UV-Vis)、荧光光谱分析(PL)等对产物形貌及光学性能进行了表征。结果表明,所得的CdS杂化材料的形貌和性能均受到醇黏度变化影响:在黏度较小的醇中得到较长的纳米棒;而在黏度较大醇中得到表面带有锥形毛刺的实心球。

The nanocomposites of N,N′-（2,4-dichlorophenyl）thiourea/CdS were successfully synthesized in the different mixture of water and alcohol by lipuid in situ precipitation method.The morphology and optical properties of products were characterized by scanning electron microscope（SEM）,X-ray diffraction（XRD）,FTIR spectroscopy,UV-Vis spectroscopy,fluorescence spectrum（PL）.The morphology and properties of the CdS nanocomposites were effected by change of the alcohol viscosity.Long nanorods were obtained in low viscous alcohols,while solid spheres with surface of conical-burr were obtained in high viscous triethanolamine.