Open AccessElectrospun Core-Shell Hollow Structure Cocatalysts for Enhanced Photocatalytic Activity
Author(s) -
Fengyun Guo,
Ziyi Guo,
Lei Gao,
Dongming Qi,
Guichu Yue,
Nü Wang,
Yong Zhao,
Ni Li,
Jie Xiong
Publication year - 2021
Publication title -
journal of nanomaterials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.463
H-Index - 66
eISSN - 1687-4129
pISSN - 1687-4110
DOI - 10.1155/2021/9980810
Subject(s) - materials science , photocatalysis , composite number , rhodamine b , fiber , photodegradation , nanoparticle , composite material , calcination , microstructure , degradation (telecommunications) , chemical engineering , electrospinning , core (optical fiber) , nanotechnology , polymer , catalysis , organic chemistry , telecommunications , chemistry , computer science , engineering
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.
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