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用双坩埚硫化法制备Y_2O_2S:Eu^(3+)纳米纤维

Preparation of Y_2O_2S:Eu^(3+) nanofibers by double-crucible sulfurization method
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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)
关键词 静电纺丝 双坩埚法 红色发光材料 纳米纤维 Y2O2S Eu3+ electrospinning double-crucible method red phosphor nanofibers Y2 02 S : Eu3 ~
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