摘要
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Yb^(3+)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Yb^(3+)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(NO_(3))_(3)·nH;O and H;BO_(3) as raw materials(oxidant),C_(8)H_(8)NO_(3),C_(8)H_(8)O_(3),C_(8)H_(8)O_(3)(NH_(4))_(3)and CH_(4)N_(2)O as burning agents(reducing agents)and Yb(NO_(3))_(3)·5 H_(2)O as modifier,LaBO_(3)∶Yb^(3+) 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 LaBO_(3)∶Yb^(3+) powders were probed.The results shown that the crystallinity of the samples synthesized with C_(8)H_(8)NO_(3)and CH_(4)N_(2)O as burning agents was 99.7%and 100.0%.The crystallinity of samples synthesized with C_(8)H_(8)O_(3)and C_(8)H_(8)O_(3)(NH_(4));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 C_(8)H_(8)NO_(3),C_(8)H_(8)O_(3)(NH_(4));,C_(8)H_(8)O_(3)and CH_(4)N_(2)O in turn from high to low.
作者
付丽婷
宫红
孟竺
范华风
张静
储刚
Fu Liting;Gong Hong;Meng Zhu;Fan Huafeng;Zhang Jing;Chu Gang(School of Petrochemical Engineering,Liaoning Petrochemical University,Fushun 113001)
出处
《化工新型材料》
CAS
CSCD
北大核心
2022年第3期189-191,195,共4页
New Chemical Materials
基金
辽宁省高等学校创新人才支持项目(LR2017011)。
关键词
溶液燃烧法
燃烧剂
微观形貌
solution combustion method
combustion agent
micromorphology
