以硝酸镧和硼酸为原料(氧化剂),分别以甘氨酸、柠檬酸、柠檬酸铵和尿素为燃烧剂(还原剂),硝酸镱为改性剂,采用溶液燃烧法制备硼酸镧掺杂Yb3+粉体,对产品进行XRD、SEM和PL分析和表征,考察不同燃烧剂对硼酸镧掺杂Yb3+粉体形貌和发光强度的影响。实验结果表明,所得产物以甘氨酸和尿素为燃烧剂合成的样品结晶度分别为99.7%和100.0%,以柠檬酸和柠檬酸铵为燃烧剂合成的样品结晶度分别为96.0%和98.5%。四种产物的微观形貌差异较大,不同燃烧剂合成的粉体发光强度由高到低依次为甘氨酸>柠檬酸铵>柠檬酸>尿素。
Using La(NO3)3·nH2O and H3BO3 as raw materials (oxidant),C2H5NO2,C8H8O7,C8H8O7(NH4)3 and CH4N2O as burning agents (reducing agents) and Yb(NO3)3·5H2O as modifier,LaBO3∶Yb3+ powders were prepared by solution combustion method.The products were analyzed and characterized by XRD,SEM and PL.The effects of different burning agents on the morphology and luminescence intensity of LaBO3∶Yb3+ powders were probed.The results shown that the crystallinity of the samples synthesized with C2H5NO2 and CH4N2O as burning agents was 99.7% and 100.0%.The crystallinity of samples synthesized with C8H8O7 and C8H8O7(NH4)3 as burners was 96.0% and 98.5%.The morphologies of the four products were quite different.The luminescence intensities of the powders synthesized with different burning agents were C2H5NO2,C8H8O7(NH4)3,C8H8O7 and CH4N2O in turn from high to low.
[1] 周宇,贾涵月,李冬霞,等.LaBO3荧光基质材料的低温制备与表征[J].中国粉体技术,2019,25(1):35-39.
[2] 杨广彬,金凤杰,郭淼,等.油溶性硼酸镧纳米微粒的制备及其在不同基础油中的摩擦学性能研究[J].润滑与密封,2019,44(4):8-13.
[3] Gu K C,Chen B S,Wang X M,et al.Preparation,friction and wear properties of hydrophobic lanthanum borate nanorods in rapeseed oil[J].Transactions of Nonferrous Metals Society of China,2014,24(11):3578-3584.
[4] 王玥,周元康,黄代宽.硼酸镧/铟复合纳米微粒在菜籽油中的摩擦学性能[J].非金属矿,2016,39(6):82-85.
[5] Wantana N,Chamlek O,Chanthima N,et al.Spectroscopic properties and judd-ofelt analysis of Dy3+ in lithium lanthanum borate glass for laser medium application[J].Key Engineering Materials,2016,3942(675-676):386-392.
[6] Ramesh P,Jagannath G,Eraiah B,et al.Optical and physical investigations of lanthanum bismuth borate glasses doped with Ho2O3[J].IOP Conference Series:Materials Science and Engineering,2018,310(1):1-8.
[7] Kononets N V,Seminko V V,Maksimchuk P O,et al.Processes of energy migration in mixed europium-lanthanum magnesium borate nanocrystals[J].Spectroscopy Letters,2017,50(7):399-403.
[8] 李岚.溶胶-凝胶法合成掺铕硼酸镧钙荧光粉及其表征[J].广东化工,2011,38(5):117-118.
[9] 熊红红,陈巧霞,朱超,等.硼酸镧钙中三价铕离子的辐射跃迁参数[J].大连工业大学学报,2014,33(5):372-375.
[10] 李霜.硼酸盐一维纳米结构材料的静电纺丝法制备与结构表征[D].长春;吉林大学,2010.
[11] Sari S,Senberber F T,Yildirim,et al.Lanthanum borate synthesis via the solid-state method from a La2O3 precursor:electrical and optical properties[J].Materials Chemistry and Physics,2017,200(10):196-203.
[12] 王渭天,何海平,叶志镇.基于溶液燃烧法制备NiO/ZnO纳米线异质结紫外探测器[J].材料科学与工程学报,2019,37(1):1-4,55.
[13] 张竞超.稀土硼/钼/钨酸盐的合成及其荧光性质的研究[D].长春:吉林大学,2012.
[14] Jiao Z W,Wang R J,Wang X Q,et al.LaZnB5O10,the first lanthanum zinc borate[J].Acta Crystallographica Section E,2010,66(1):1-8.
[15] 赵旭光,周宇,李冬霞,等.微波诱导燃烧法制备LaBO3∶Eu,Gd粉体及其表征[J].光电子·激光,2019,30(2):129-133.
[16] 金怀宝,赵旭光,范华风,等.LaBO3∶Yb3+粉体的制备及光谱性质研究[J].光电子·激光,2019,30(8):817-821.
