文献类型：期刊文献

英文题名：Preparation of electrospun heterostructured hollow SnO2/CuO nanofibers and their enhanced visible light photocatalytic performance

作者：Wang, Kai[1];Zhang, Weizhou[1];Lou, Feipeng[1];Wei, Ting[1];Qian, Ziming[2];Guo, Weihong[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Preparat & Applicat Ultrafine Mat, Polymer Proc Lab,Minist Educ, Shanghai 200237, Peoples R China;[2]Jiangsu Hengtong Power Cable Co Ltd, Suzhou 215200, Jiangsu, Peoples R China

年份：2018

卷号：22

期号：8

起止页码：2413

外文期刊名：JOURNAL OF SOLID STATE ELECTROCHEMISTRY

收录：;EI(收录号：20182805536597);WOS:【SCI-EXPANDED(收录号:WOS:000437834600014)】；

基金：The authors sincerely acknowledge "Scientific and Technological Achievements Transformation Program of Jiangsu Province (SBA2014010034)" and "Ningbo Industrial Major Projects (201601ZD-A01026)."

语种：英文

外文关键词：Electrospinning; Heterostructure; Hollow nanostructure; Photocatalysis

摘要：Heterostructured SnO2/CuO nanofibers with a hollow morphology were successfully fabricated by a one-step electrospinning method. The electrospun nanofibers were transformed into hollow nanostructures in the presence of camphene after a calcination process, and the obtained samples were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), UV-vis diffuse reflection spectroscopy (DRS), photoluminescence spectra (PL), and photodegradation measurements. The scanning electron microscopy (SEM) images displayed a rough and hollow structure for the obtained nanofibers. X-ray photoelectron spectroscopy (XPS) and energy-dispersive X-ray spectroscopy (EDX) identified the molecular composition and chemical interactions of the nanofibers. Photoluminescent (PL) measurements indicated that a recombination of the photoinduced electrons and holes was further inhibited due to the hollow nanostructure. Furthermore, the photodegradation of methylene blue suggested that the heterostructured SnO2/CuO hollow nanofibers possessed higher charge separation and photodegradation abilities than those of the other samples under visible light irradiation. This work can be potentially applied to the fabrication of other inorganic oxide photocatalysts with enhanced photodegradation activity in the field of environmental remediation.