Preparation of ordered TiO2 nanofibers/nanotubes by magnetic field assisted electrospinning and the study of their photocatalytic properties |
| |
| Affiliation: | 1. CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, 1799 Jimei Road, Xiamen 361021, China;2. CAS Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, 1799 Jimei Road, Xiamen 361021, China;3. University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049, China;4. Fujian Provincial Key Laboratory of Ecology-Toxicological Effects & Control for Emerging Contaminants, College of Environmental and Biological Engineering, Putian University, 1133 Xueyuan Road, Putian 351100, China;5. CSIRO Manufacturing, Private Bag 10, Clayton, Victoria 3168, Australia;1. College of Physics and Electronic Engineering, Key Laboratory of Atomic and Molecular Physics & Functional Materials of Gansu Province, Northwest Normal University, Lanzhou, Gansu 730070, People''s Republic of China;2. School of Physical Science and Technology, Lanzhou University, Lanzhou, Gansu, 730000, People''s Republic of China;1. Unidad Profesional Interdisciplinaria en Ingeniería y Tecnologías Avanzadas, Instituto Politécnico Nacional. Av. Instituto Politécnico Nacional 2580. La Laguna Ticomán, Ciudad de México, 07340, Mexico;2. Centro de Investigación en Biotecnología Aplicada, Instituto Politécnico Nacional. Ex–Hacienda de San Juan Molino. Km 1.5 de la Carretera Estatal Santa Inés Tecuexcomac-Tepetitla. Tepetitla, Tlaxcala, 90700, Mexico |
| |
| Abstract: | Ordered-and-oriented TiO2 nanofibers and nanotubes were prepared by magnetic field-assisted electrospinning, and photocatalytic properties of all samples were analyzed under UV–Vis shine. TiO2 nanofibers/nanotubes prepared by magnetic field-assisted electrospinning showed better degradation effect on rhodamine B, reduced the band gap, increased the contact area of organic pollutants with the sample and higher photocatalytic activity than TiO2 nanofibers/nanotubes prepared by classical electrospinning. The product obtained after high temperature annealing was a mixed phase of rutile phase and anatase phase and could be advantageous to the segregate of photogenic electron hole pairs and enhance the high dye absorption capacity; Surface roughness could increase more active sites and accelerate the reaction rate of photocatalytic activity; the addition of magnetic field regulated the morphology of TiO2, and narrowed the band gap to favor photocatalytic performance. The magnetic field-assisted electrospinning study prepared in this paper was an easy-to-use and versatile method for the preparation of ordered TiO2 nanomaterials, which could be easily extended to practical applications or other materials for photocatalysis and water cleavage. |
| |
| Keywords: | Electrospinning Photodegradation |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
