摘要
通过静电纺丝技术制备了PVP/[Y(NO3)3+Eu(NO3)3]复合纳米纤维,在700℃焙烧后得到Y2O3:Eu3+纳米纤维,然后采用双坩埚法硫化Y2O3:Eu3+纳米纤维,得到Y2O2S:Eu3+纳米纤维,并将其与固-固合成法得到的Y2O2S:Eu3+颗粒进行了比较,证明了双坩埚硫化法是一种重要的硫化方法,既可以在较低的温度下得到纯六方晶系的Y2O2S:Eu3+,又保持了Y2 O3:Eu3+纳米纤维的形貌。详细地讨论了双坩埚硫化方法的反应机理。
Y2 O3 : Eu3+ nanofibers were fabricated by calcination of the electrospun PVP/[ Y ( NO3 ) 3 + Eu ( NO3 ) 3 ] composite nanofibers at 700℃ , and then Y2O2S:Eu3+ nanofibers were synthesized by sulfurization of the Y203:Eu3+ nanofibers via double-crucible method. Compared with solid-solid reaction method, the double-crucible sulfurization method proposed here has been proved to be an important method, not only can be fabricated Y2O2 S-Eu3+ nanofibers with pure hexagonal phase at low temperature, but also the shape of Y2 O3 : Eu3+ nanofibers can be retained. Meanwihle, the mechanism of double-crucible sulfurization method is discussed.
出处
《材料热处理学报》
EI
CAS
CSCD
北大核心
2013年第3期7-11,共5页
Transactions of Materials and Heat Treatment
基金
国家自然科学基金项目(50972020
51072026)
教育部博士点基金项目(20102216110002)
吉林省科技发展计划重大项目(20070402
20060504)
教育部科学技术研究重点项目(207026)