Functional akund fibres by loading of carbon dots through an in-situ method
Functional akund fibres by loading of carbon dots through an in-situ method
复制标题
原位负载碳点制备功能性阿昆德纤维
DOI：
10.1016/j.apsusc.2019.143574
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发表时间：
2019-11-30
影响因子：
6.7
通讯作者：
An, Xueqin
中科院分区：
文献类型：
--
作者：
Yang, Xiaojie;An, Xueqin
本文介绍了一种原位合成法，将碳点（CD）负载在芳纶纤维的表面和内腔中。将环糊精成功地负载到纤维的内腔上，并以负载在纤维表面的环糊精为还原剂在纤维的内表面合成了银纳米粒子。利用扫描电子显微镜（FESEM）观察了akund-CD和akund-CD/AgNPs的内、外表面形貌。利用激光共聚焦扫描显微镜（LSCM）对akund-CD和akund-CD/AgNPs内表面上CD的荧光特性进行了比较，结果表明akund-CD上CD的荧光强度远强于akund-CD/AgNPs。首次利用时间分辨荧光光谱对akund-CD和akund-CD/AgNP上的CD的微观结构进行了研究，结果表明akund-CD和akund-CD/AgNP上的CD的微观结构是不同的。对不同方法合成的akund-CD的FL性能、负载量、稳定性、抗氧化性和耐洗性进行了测试，发现原位法合成的akund-CD比传统的简单浸泡法合成的akund-CD具有更好的耐洗性。本工作提出了一种将纳米粒子负载于纳米纤维的方法，使纳米纤维具有多种功能，可应用于纺织工业。
An in-situ synthesis method for loading Carbon Dots (CDs) on the surface and the inner cavities (lumens) of akund fibres has been presented. CDs were successfully loaded on the lumens of akund and AgNPs were also synthesized on the inner surface of fibres by using CDs on the surface of akund as reductant. The inner and outer surface morphology of akund-CDs and akund-CDs/AgNPs were obtained by using scanning electron microscope (FESEM). The fluorescence (FL) properties of CDs on the inner surface of akund-CDs and akund-CDs/AgNPs were compared by using confocal laser scanning microscopy (LSCM) and it showed that the FL intensity of CDs on akund-CDs was much stronger than that on akund-CDs/AgNPs. The microstructures of CDs on akund-CDs and akund-CDs/AgNPs were also probed by using time-resolved FL spectra for the first time, and the results showed that the microstructures of CDs on akund-CDs and akund-CDs/AgNPs were different. The FL property, load capacity, stability, antioxidant activity and washability of akund-CDs synthesized by different methods were also measured, and it was found that the in-situ method was much better than the traditional simple soaking method. This work suggested a promising approach to load nanoparticles on the lumens of akund, which endows akund with many functions to be applied in textile industry.