Multifunctional CNTs nanohybrids decorated with magnetic and fluorescent nanoparticles layer-by-layer

Bulletin of materials science

Li Liu¹  Wei Jiang¹  Bin-Hua Chen¹  Feng-Sheng Li¹  Xi-Wen Yang¹  Lei Yao¹  Shi-Xi Wu¹ 

[1] National Special Superfine Powder Engineering Research Centre, Nanjing University of Science and Technology, No. 200 Xiaolinwei Street, Xuanwu District, Nanjing, 210 094, China$$National Special Superfine Powder Engineering Research Centre, Nanjing University of Science and Technology, No. 200 Xiaolinwei Street, Xuanwu District, Nanjing, 210 094, ChinaNational Special Superfine Powder Engineering Research Centre, Nanjing University of Science and Technology, No. 200 Xiaolinwei Street, Xuanwu District, Nanjing, 210 094, China$$

关键词: Magnetic materials;    multilayers;    luminescence;    magnetic properties.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Fe₃O₄/CNTs nanocomposites, which were prepared by polyol-medium in situ high-temperature decomposition of Fe(𝑎ð�?�ð�?�Žð�?��?)₃ using PVP as stabilizing agent andmodified with SDS, were further decorated with high-quality ZnS nanocrystal via a wet technique in glycol solution. The obtained ZnS/Fe₃O₄/CNTs nanohybrids were characterized by XRD, FTâ€�?�IR, Raman microscope, TEM, EDS, XPS, VSM and fluorophotometers. Results indicated that magnetic Fe₃O₄ nanoparticles and fluorescent ZnS nanocrystal were uniformly dispersed on the surface of CNTs layer-by-layer with PVP and SDS as stabilizing agent and ion-capture agent, respectively. The novel multi-functional nanohybrids exhibit super-paramagnetic properties with a saturation magnetization about 6.795 emu g^-1 at room temperature and show a strong emission band at 367 nm with a broad shoulder around 342â€�??483 nm due to the interactions and/or background emissions of Fe₃O₄ and CNTs. The superparamagnetic and fluorescent properties of obtained products are promising for potential applications in magnetically guided and fluorescence tracing drug delivery systems.

【 授权许可】

Unknown