发光学报, 2019, 40 (1): 39, 网络出版: 2019-01-19
静电纺Ag/WO3复合纳米纤维及其光催化性能
Electrospinning Fabrication of Ag/WO3 Nanofibers and Photocatalytic Performance
摘要
为了研究氧化钨(WO3)和银/氧化钨(Ag/WO3)纳米纤维光催化性能, 利用静电纺丝技术制备了WO3和Ag/WO3复合纳米纤维。采用X射线衍射仪(XRD)、扫描电子显微镜(SEM)和紫外-可见分光光度计(UV-Vis), 对样品的物相结构、形貌大小和紫外-可见漫反射光谱等进行了表征。在可见光照射下, 比较WO3和Ag/WO3纳米纤维光催化降解亚甲基蓝(MB)的性能, 结果表明, 在90 min时, Ag/WO3复合纤维光催化降解MB效率比WO3纤维高1.3倍, 从能带结构角度分析了Ag/WO3复合纤维光催化效率增强的原理。
Abstract
In order to study the photocatalytic effect of tungsten oxide(WO3) and silver/tungsten oxide(Ag/WO3) nanofibers. The WO3 and Ag/WO3 nanofibers were fabricated by electrospinning method. The crystal phase, morphology and ultraviolet-visible diffuse reflectance spectroscopy of the samples were characterized by X-ray diffraction(XRD), scanning electron microscopy(SEM) and UV-Vis spectrophotometer(UV-Vis). The photocatalytic degradation performance on Methyl Blue(MB) with WO3 and Ag/WO3 nanofibers was evaluated under UV-Vis light irradiation. The results demonstrate that the photocatalytic degradation efficiency on MB with Ag/WO3 nanofibers is 1.3 times higher than WO3 at 90 min. Based on the energy band structure, the principle of photocatalytic efficiency enhancement of Ag/WO3 composite fibers was analyzed.
魏利娟, 张海明, 曹静, 张晓慧, 张玥, 张飚. 静电纺Ag/WO3复合纳米纤维及其光催化性能[J]. 发光学报, 2019, 40(1): 39. WEI Li-juan, ZHANG Hai-ming, CAO Jing, ZHANG Xiao-hui, ZHANG Yue, ZHANG Biao. Electrospinning Fabrication of Ag/WO3 Nanofibers and Photocatalytic Performance[J]. Chinese Journal of Luminescence, 2019, 40(1): 39.