Novel hexagonal-YFeO3/α-Fe2O3 heterojunction composite nanowires with enhanced visible light photocatalytic activity
Novel hexagonal-YFeO3/α-Fe2O3 heterojunction composite nanowires with enhanced visible light photocatalytic activity
复制标题
具有增强可见光催化活性的新型六方-YFeO3/α-Fe2O3异质结复合纳米线
DOI：
10.1016/j.matlet.2015.12.008
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发表时间：
2016-02-15
影响因子：
3
通讯作者：
Peng, Yiting
中科院分区：
文献类型：
--
作者：
Liu, Jing;He, Fang;Peng, Yiting
采用静电纺丝辅助退火技术首次制备了新型六方(h)-YFeO3/ α - fe2o3异质结复合纳米线。结果表明：复合纳米线由分布的h-YFeO3纳米颗粒和连续的α - fe2o3纳米颗粒组成，直径为150 nm；与纯h-YFeO3和纯α - fe2o3相比，制备的h-YFeO3/ α - fe2o3复合纳米线由于h-YFeO3纳米颗粒与α - fe2o3纳米颗粒之间形成异质结，具有较高的电子空穴分离效率和RhB降解的光催化活性。此外，h-YFeO3/ α - fe2o3复合纳米线表现出良好的光催化稳定性。最后分析了h-YFeO3/ α - fe2o3异质结的光催化增强机理。(C) 2015 Elsevier B.V.版权所有
Novel hexagonal (h)-YFeO3/alpha-Fe2O3 heterojunction composite nanowires were firstly prepared via electrospinning technique assisted with anneal treatment. The results show that the composite nanowires with a diameter of 150 nm are composed by distributed small h-YFeO3 nanograins and continuous alpha-Fe2O3 nanograins. Compared with pure h-YFeO3 and pure alpha-Fe2O3, the prepared h-YFeO3/alpha-Fe2O3 composite nanowires possess relatively higher electron-hole separation efficiency as well as photocatalytic activity of RhB degradation due to the formed heterojunctions between the h-YFeO3 nanograins and the alpha-Fe2O3 nanograins. Furthermore, the h-YFeO3/alpha-Fe2O3 composite nanowires exhibit good photocatalytic stability. At last, mechanism of enhanced photocatalysis about the h-YFeO3/alpha-Fe2O3 heterojunction is also illustrated. (C) 2015 Elsevier B.V. All rights reserved.