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Neoteric Conjugative Electrospinning towards Alloplastic Nanofiber Yarns Affording Enhanced Upconversion Luminescence and Tailored Magnetism
ChemNanoMat ( IF 2.6 ) Pub Date : 2020-01-09 , DOI: 10.1002/cnma.201900621 Yuqi Sheng 1 , Jiao Tian 1 , Yunrui Xie 1 , Xiuling Yang 1 , Haina Qi 1 , Qianli Ma 1 , Wensheng Yu 1 , Xiangting Dong 1 , Hui Yu 1 , Guixia Liu 1
ChemNanoMat ( IF 2.6 ) Pub Date : 2020-01-09 , DOI: 10.1002/cnma.201900621 Yuqi Sheng 1 , Jiao Tian 1 , Yunrui Xie 1 , Xiuling Yang 1 , Haina Qi 1 , Qianli Ma 1 , Wensheng Yu 1 , Xiangting Dong 1 , Hui Yu 1 , Guixia Liu 1
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Upconversion luminescent‐magnetic [Y2O3:Yb3+, Er3+/polyacrylonitrile (PAN)]//[CoFe2O4/PAN] alloplastic nanofiber yarns (ANYs) are successfully prepared by a novel conjugative electrospinning. The ANYs consist of two different kinds of nanofibers, respectively called as [CoFe2O4/PAN] magnetic nanofibers and [Y2O3:Yb3+, Er3+/PAN] upconversion luminescent nanofibers, and the two kinds of nanofibers are combined together and twisted to form ANYs. Pumped by 980‐nm laser, the ANYs exhibit excellent upconversion luminescence (UCL) and orange‐red fluorescence. ANYs demonstrate tailored saturation magnetization by modulating CoFe2O4 nanoparticles (NPs) content. The influence mechanism of magnetic CoFe2O4 NPs on the UCL of ANYs is detailedly explored. The relationship between mechanical properties and twist for ANYs is explored through the tensile test. Compared with the counterpart coessential nanofiber yarns (CNYs), ANYs exhibit about 10 times stronger UCL intensity owing to the complete separation of the upconversion luminescent substance from the magnetic substance and thereby great reduction of impact of the magnetic substance on the upconversion luminescent substance. Thus, concurrent enhancive upconversion luminescence (UCL) and tunable magnetism of the ANYs are successfully achieved. The detailed formation mechanism of ANYs is advanced and a novel fabrication technique of yarns is established and can be popularized to prepare other bi‐ and multi‐functional nanofibrous yarns.
中文翻译：
新共轭静电纺丝向同种异体纳米纤维纱提供增强的上转换发光和量身定制的磁性。
通过新型共轭电纺成功制备了上转换发光磁性[Y 2 O 3：Yb 3+，Er 3+ /聚丙烯腈（PAN）] // [CoFe 2 O 4 / PAN]同种异体纳米纤维纱。ANY由两种不同类型的纳米纤维组成，分别称为[CoFe 2 O 4 / PAN]磁性纳米纤维和[Y 2 O 3：Yb 3+，Er 3+/ PAN]上转换发光纳米纤维，并将两种纳米纤维结合在一起并加捻形成ANY。通过980 nm激光泵浦，ANY具有出色的上转换发光（UCL）和橙红色荧光。ANY通过调节CoFe 2 O 4纳米颗粒（NPs）含量展示了定制的饱和磁化强度。磁性CoFe 2 O 4的影响机理详细探讨了ANY的UCL上的NP。通过拉伸试验探索了ANY的机械性能与扭转之间的关系。与上等的纳米纤维纱线（CNYs）相比，由于上转换发光物质与磁性物质完全分离，ANY的UCL强度要强10倍左右，从而大大降低了磁性物质对上转换发光物质的影响。因此，成功实现了ANY的同时增强上转换发光（UCL）和可调磁性。ANYs的详细形成机理得到了发展，并建立了一种新颖的纱线制造技术，可以推广用于制备其他双功能和多功能纳米纤维纱线。
更新日期：2020-01-09
中文翻译：
新共轭静电纺丝向同种异体纳米纤维纱提供增强的上转换发光和量身定制的磁性。
通过新型共轭电纺成功制备了上转换发光磁性[Y 2 O 3：Yb 3+，Er 3+ /聚丙烯腈（PAN）] // [CoFe 2 O 4 / PAN]同种异体纳米纤维纱。ANY由两种不同类型的纳米纤维组成，分别称为[CoFe 2 O 4 / PAN]磁性纳米纤维和[Y 2 O 3：Yb 3+，Er 3+/ PAN]上转换发光纳米纤维，并将两种纳米纤维结合在一起并加捻形成ANY。通过980 nm激光泵浦，ANY具有出色的上转换发光（UCL）和橙红色荧光。ANY通过调节CoFe 2 O 4纳米颗粒（NPs）含量展示了定制的饱和磁化强度。磁性CoFe 2 O 4的影响机理详细探讨了ANY的UCL上的NP。通过拉伸试验探索了ANY的机械性能与扭转之间的关系。与上等的纳米纤维纱线（CNYs）相比，由于上转换发光物质与磁性物质完全分离，ANY的UCL强度要强10倍左右，从而大大降低了磁性物质对上转换发光物质的影响。因此，成功实现了ANY的同时增强上转换发光（UCL）和可调磁性。ANYs的详细形成机理得到了发展，并建立了一种新颖的纱线制造技术，可以推广用于制备其他双功能和多功能纳米纤维纱线。
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