Electrospun graphene-ZnO nanofiber mats for photocatalysis applications

• DOI: 10.1016/j.apsusc.2013.12.159
• Publication Date: 2014-01-04T16:00:38Z
• Authors: Seongpil An; Bhavana N. Joshi; Min Wook Lee; Na Young Kim; Sam S. Yoon
• Keywords: Methylene blue; Electrospinning; Degradation; Thermogravimetric analysis

Abstract Graphene-decorated zinc oxide (G-ZnO) nanofibers were fabricated, for the first time, by electrospinning. The effect of graphene concentration on the properties of G-ZnO mats were investigated by scanning electron microscopy, X-ray diffraction, Raman spectroscopy, and thermo gravimetric analysis. The G-ZnO mats decorated with 0.5 wt.% of graphene showed excellent photocatalytic activity through degradation of methylene blue under UV irradiation. The highest photocatalytic activity (80% degradation) was observed for 0.5 wt.% G-ZnO mats annealed at 400 °C after 4 h of UV irradiation.