高等学校化学学报2017，Vol.38Issue(12)：2313-2319,7.DOI:10.7503/cjcu20170097
Pr掺杂Bi2MoO6/TiO2复合纳米纤维的制备及可见光催化性能
Preparation and Photocatalytic Properties of Pr-doped Bi2MoO6/TiO2Composite Nanofibers Under Visible Light Irradiation
摘要
Abstract
Praseodymium-doped Bi2MoO6 / TiO2 composite nonafibers were prepared via solvothermal growth of Bi2MoO6 nanostructures on the substance of the electrospun anatase TiO2 nanofibers. The phase composition, morphology, microstructure and optical properties of the samples were characterized by X-ray diffraction scanning electron microscopy, energy dispersive X-ray spectroscopy, high-resolution transmission electron microscopy, UV-Vis diffuse reflectance spectroscopy and photoluminescence spectroscopy. The photocatalytic activity of the samples were evaluated by photodegradation of methyl orange solution under visible light. The results showed that the Pr3+ was incorporated into the Bi2MoO6 crystal lattice to form the donor level, which facilitated the activation of the photocatalyst by visible light, retarded the recombination of photo-induced electrons-holes, and inhibited the leaching of dopants, leading to an enhanced activity and good recycling sta-bility. The 3%(molar faction) Pr-doped Bi2MoO6 / TiO2 photocatalyst exhibited the best activity, with a MO degradation rate of 93. 8% after visible light irradiation for 180 min. The Pr-doped Bi2MoO6 / TiO2 composite nanofibers exhibited superior photocatalytic activity compared to the Bi2MoO6 / TiO2 composite nanofibers.关键词
静电纺丝/Pr掺杂/Bi2MoO6/TiO2/可见光催化Key words
Electrospinning technique/Praseodymium-doping/Bi2MoO6 / TiO2/Visible light photcatalysis activity分类
化学化工引用本文复制引用
李跃军,曹铁平,梅泽民,席啸天,王霞..Pr掺杂Bi2MoO6/TiO2复合纳米纤维的制备及可见光催化性能[J].高等学校化学学报,2017,38(12):2313-2319,7.基金项目
国家自然科学基金(批准号:21573003)和吉林省自然科学基金(批准号:20140101118JC)资助. Supported by the National Natural Science Foundation of China( No.21573003) and the Natural Science Fund of Jilin Province, China (No.201410111810). （批准号:21573003）
