EuF3/helical carbon microfibers (HCFs) with composite structure was prepared by hydrothermal method using spiral vessels (SVs) in tea-leaves as template.The phase,structure and morphology of the samples were characterized by X-ray diffraction (XRD),field emission scanning electron microscopy (SEM) and infrared spectroscopy.The results showed that the helical structure was perfectly preserved after hydrothermal carbonization.The results of photoluminescence spectra and fluorescence lifetime at room temperature showed that the energy transfer between Eu3+ and HCFs occurred at the excitation wavelength of 317nm,which significantly enhanced the emission of helical carbon micron fiber at 354nm in the ultraviolet region,indicating that Eu3+/HCFs was a new type of ultraviolet emission material.
Wang Wei, Zhang Zhihua, Cao Qiyi, Zhu Shuyuan, Wen Yadong, Wang Gang, Wang Zhijun, Sun Yufeng, Tao Feng
. Preparation and luminescence property of EuF3/HCFs with composite structure[J]. New Chemical Materials, 2021
, 49(7)
: 73
-77
.
DOI: 10.19817/j.cnki.issn 1006-3536.2021.07.017
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