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影响因子：7.8

DOI码：10.1016/j.psep.2023.01.076

发表刊物：Process Saf. Environ.

摘要：Recently, rare earth (RE) elements and their oxides have been attracting more and more attention in the field of photocatalytic degradation. Due to the unique 4 f electronic structure and optical properties, the RE element, europium (Eu), together with its oxides, are often used for surface modification of other photocatalysts. Nevertheless, the photocatalytic degradation property of europium oxide has been rarely reported. In this study, we synthesized Eu2O3 nanoparticles via chemical precipitation and calcination processes, and performed surface modification by using surfactants as polyvinyl pyrrolidone (PVP) and hexadecyl trimethyl ammonium bromide (CTAB). Compared with pure Eu2O3 nanoparticles and those synthesized with PVP, photocatalytic degradation efficiencies of Eu2O3 nanoparticles synthesized with surfactant CTAB for degrading rhodamine B dye demonstrated to be improved by 16% and 12%, respectively. The ultraviolet-visible diffuse reflectance spectra measurements indicate that CTAB can increase the bandgap of Eu2O3 due to the reduction of oxygen defects. Photoluminescence spectra demonstrate that the surfactant would affect the luminescence of Eu3+ and carrier redistribution of energy levels.

论文类型：期刊论文

文献类型：J

卷号：171

期号：1

页面范围：888

是否译文：否

收录刊物：SCI

发布期刊链接：https://www.sciencedirect.com/science/article/pii/S0957582023000873

第一作者：Yishuai Jing

通讯作者：Xin Zhao

通讯作者：Jiaming Song

合写作者：Tianxin Kang

合写作者：Peng Hu

合写作者：Haibo Fan

合写作者：Feng Teng