Synthesis and optical properties of zinc phosphate microspheres  

磷酸锌微球的制备及光学性能(英文)

作　　者：宁张磊[1] 李文军[1] 孙长艳[1] 车平[1] 常志东[1] 

机构地区：[1]北京科技大学化学与生物工程学院,北京100083

出　　处：《Transactions of Nonferrous Metals Society of China》2013年第3期718-724,共7页中国有色金属学报（英文版）

基　　金：Project(21101013) supported by the National Natural Science Foundation of China;Projects(FRF-SD-13-002B,FRF-BR-09-004A) supported by the Fundamental Research Funds for the Central Universities,China

摘　　要：Monodisperse zinc phosphate microspheres were synthesized by a facile solvothermal method in the presence of oleic acid.X-ray powder diffraction（XRD）,Fourier transform infrared spectrum（FT-IR）,emission scanning electron microscopy（SEM）,and energy dispersive X-ray spectrum（EDX） were used to characterize the microstructures and morphologies of the as-obtained zinc phosphate samples.The experimental results indicate that the zinc phosphate products are well crystallized,and the morphologies of the samples can be easily controlled by the elaborate choice of oleic acid addition and the content of NaOH.Furthermore,self-activated luminescent properties of the products are observed.The as-obtained samples show an intense blue emission under a long-wavelength UV light excitation of 400 nm.The possible luminescent mechanism may be ascribed to the carbon-related surface impurities or defects.在油酸存在下,采用简单的溶剂热方法制备单分散的磷酸锌微米球。通过X射线粉末衍射、傅里叶红外光谱、扫描电子显微镜、能谱等方法对磷酸锌产品的结构和形貌进行表征。实验结果表明,制备的磷酸锌产品结晶性良好,并且产品的形貌可以通过油酸添加量和氢氧化钠的加入量实现有效的控制。该产品具有自发光性能,在400nm长波紫外光的激发下,可以发射出明亮的蓝光。推测可能的发光机理为与碳相关的表面杂质或者缺陷所致。

关 键 词：zinc phosphate oleic acid chemical synthesis optical properties LUMINESCENCE 

分 类 号：O627.51[理学—有机化学]