Facile Synthesis and Characterization of Molybdenum Oxide (MoO3) Nanofibers and Submicron Rods by Electrospinning Technique for Potential Application in Photocatalytic Activity

Autor: Ramasamy Jayavel, R. Dhinesh Kumar, R. Thangappan
Rok vydání: 2021
Předmět:
Zdroj: Journal of Cluster Science. 33:2209-2214
ISSN: 1572-8862
1040-7278
Popis: The nanofiber with fiber morphology was a key parameter that can effectively overcome the electron–hole fast recombination issue and enhance the activity of photocatalyst under the visible light irradiation. In this work, MoO3 nanofibers and MoO3 submicron rods are fabricated through a simple electrospinning method with polyvinyl pyrrolidone/ammonium molybdate as a source to obtain the composite fibers. The composite fibers were treated to various calcination temperatures in order to obtain MoO3 fibers and MoO3 rods. The resultant samples were calcined at 350 °C and 550 °C respectively. The diameter ranges from 150 to 250 nm are obtained for lower temperature 350 °C and after the calcination of MoO3 nanofibers at 550 °C the rods of submicron sizes were formed. Further to study the optical absorption and photocatalyst properties, UV–Vis spectrophotometer was used for the analysis and the band gap energy for the prepared sample from Tauc plot was found to be 3.135 eV. The synthesized MoO3 rods (i.e.) annealed MoO3 nanofibers at 550 °C exhibited strong photocatalytic degradation of methylene orange up to 94% in the presence of sunlight without using any oxidizing agents. The photocatalytic degradation of 94% was recorded for annealed MoO3 nanofibers in presence of sun light without using any oxidizing agents.
Databáze: OpenAIRE
Externí odkaz: