Liu Zhicheng, Yan Zhaodong, Bai Lu
School of Materials Science and Engineering, North University of China Taiyuan 030051 China.
Department of Mechanical Engineering, National University of Singapore Singapore 117574 Singapore.
RSC Adv. 2018 Mar 5;8(17):9344-9352. doi: 10.1039/c8ra00665b. eCollection 2018 Feb 28.
Assembling nanoparticles into or onto a three-dimensional template such as an electrospun nanofiber membrane has attracted considerable attention since this composite material has great potential in many applications. We report here that hybrid noble metal nanoparticles could be readily assembled both into and onto electrospun nanofibers using simple mixing and immersion steps. It is observed that small gold nanospheres were well distributed within the nanofiber, while other nanoparticles such as big gold nanospheres, gold nanorods and palladium nanocubes were uniformly decorated on the surface of the nanofibers. Moreover, the hybrid nanoparticle-assembled nanofiber membrane showed impressive SERS and catalytic performance based on the type of the assembled nanoparticles. It is believed that other nanomaterials could also be assembled with nanofiber membranes using this facile strategy.
将纳米颗粒组装到三维模板（如电纺纳米纤维膜）中或其表面，自这种复合材料在许多应用中具有巨大潜力以来，已引起了相当大的关注。我们在此报告，使用简单的混合和浸泡步骤，杂化贵金属纳米颗粒可以很容易地组装到电纺纳米纤维内部和表面。观察到小金纳米球在纳米纤维内分布良好，而其他纳米颗粒，如大金纳米球、金纳米棒和钯纳米立方体，则均匀地装饰在纳米纤维表面。此外，基于组装的纳米颗粒类型，杂化纳米颗粒组装的纳米纤维膜表现出令人印象深刻的表面增强拉曼散射（SERS）和催化性能。据信，使用这种简便策略，其他纳米材料也可以与纳米纤维膜组装在一起。
