ZHOU Yu, JIA Hanyue, LI Dongxia, YANG Xuejiao, ZHANG Jin, CHU Gang

(School of Chemistry and Materials Science，Liaoning Shihua University，Fushun 113001，China)

Abstract: LaBO3 powder with orthorhombic crystal system was synthesized with La(NO3)3, H3BO3 and C2H5NO2 at the mole ratio of 3∶3∶5 by solution combustion method. La(NO3) and H3BO3 were used as the oxidizing agent，and C2H5NO2 was used as the reducing agent. The influence of calcination temperatures and time conditions on the product were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM) and fluorescence. The results show that it is optimal to synthesize the LaBO3 powder with a good particle dispersion and particle size distribution at 750 ℃ for 4 h. The values of lattice parameters are α-LaBO3a=0.510 33 nm, b=0.825 08 nm, and c=0.586 74 nm. Thus LaBO3 powder can be used as substrate materials in the preparation of luminescent powder.

Keywords: LaBO3 of orthogonal system; fluorescent matrix materials; low-temperature preparation

中图分类号：O614

文献标志码：A

文章编号：1008-5548(2019)01-0035-05

DOI:10.13732/j.issn.1008-5548.2019.01.006

收稿日期：2018-08-20，修回日期：2018-09-18，在线出版时间：2018-12-24 08:36。

基金项目：辽宁省自然科学基金资助项目，编号：201202122。

第一作者简介：周宇(1993—)，男(达斡尔族)，硕士研究生，研究方向为稀土纳米材料的制备。E-mail：6671161@163.com。

通信作者简介：储刚(1963—)，男，博士，教授，硕士生导师，研究方向为稀土纳米材料的制备。E-mail：chugang@126.com。