Ultrafine hollow TiO2 nanofibers from core-shell composite fibers and their photocatalytic properties

2018 ◽  
Vol 9 ◽  
pp. 76-80 ◽  
Author(s):  
Wen Ouyang ◽  
Shuwu Liu ◽  
Kaiqing yao ◽  
Luying Zhao ◽  
Lihua Cao ◽  
...  
2014 ◽  
Vol 27 (4) ◽  
pp. 557-562 ◽  
Author(s):  
V. Revathi ◽  
S. Dinesh Kumar ◽  
P. Chithra Lekha ◽  
V. Subramanian ◽  
T. S. Natarajan ◽  
...  

2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Fengyun Guo ◽  
Ziyi Guo ◽  
Lei Gao ◽  
Dongming Qi ◽  
Guichu Yue ◽  
...  

The core-shell NaYF4/Yb/Tm/TiO2 hollow composite fibers were prepared by coaxial electrospinning and high-temperature calcination. The composite fibers exhibit excellent photocatalytic activity under the dual synergistic of regulating the core-shell hollow microstructure and the composition by doping nanoparticles. Compared with commercial P25 and hollow fiber without nanoparticles, the degradation efficiency of rhodamine B using the core-shell composite fiber was significantly improved up to 99%. Moreover, the nanoparticles in the composite fibers can exist stably and maintain good structure and photocatalytic activity after repeated use. Therefore, the composite fiber has a wide application prospect in photocatalytic degradation of organic pollutants.


2018 ◽  
Vol 10 (4) ◽  
pp. 4041-4049 ◽  
Author(s):  
Xiaoyan Lu ◽  
Chen Shen ◽  
Zeyang Zhang ◽  
Elizabeth Barrios ◽  
Lei Zhai

2021 ◽  
Vol 66 (8) ◽  
pp. 1091-1099
Author(s):  
E. I. Istomina ◽  
P. V. Istomin ◽  
A. V. Nadutkin ◽  
V. E. Grass ◽  
I. M. Belyaev ◽  
...  

2020 ◽  
Vol 65 (10) ◽  
pp. 904
Author(s):  
V. O. Zamorskyi ◽  
Ya. M. Lytvynenko ◽  
A. M. Pogorily ◽  
A. I. Tovstolytkin ◽  
S. O. Solopan ◽  
...  

Magnetic properties of the sets of Fe3O4(core)/CoFe2O4(shell) composite nanoparticles with a core diameter of about 6.3 nm and various shell thicknesses (0, 1.0, and 2.5 nm), as well as the mixtures of Fe3O4 and CoFe2O4 nanoparticles taken in the ratios corresponding to the core/shell material contents in the former case, have been studied. The results of magnetic research showed that the coating of magnetic nanoparticles with a shell gives rise to the appearance of two simultaneous effects: the modification of the core/shell interface parameters and the parameter change in both the nanoparticle’s core and shell themselves. As a result, the core/shell particles acquire new characteristics that are inherent neither to Fe3O4 nor to CoFe2O4. The obtained results open the way to the optimization and adaptation of the parameters of the core/shell spinel-ferrite-based nanoparticles for their application in various technological and biomedical domains.


2020 ◽  
Vol 7 (2) ◽  
pp. 411-420
Author(s):  
Xue Bai ◽  
Dianxue Cao ◽  
Hongyu Zhang

Combining interfacial methods and mesoporous carbon channels, an asymmetric device, using N,S-codoped mesoporous carbon and a MnO2@MC-30 core shell composite, is assembled with high energy, power densities and outstanding cycling stability.


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