Document Type : Research Paper
Authors
1
National Institute of Technology Karnataka
2
1Department of P.G. Studies in Chemistry, Alva’s College (Autonomous), Moodubidire, 574 227, Dakshina Kannada, Karnataka, India
3
Department of P.G. Studies in Chemistry, Alva’s College (Autonomous), Moodubidire, 574 227, Dakshina Kannada, Karnataka, India
4
Membrane and Separation Technology Laboratory, Department of Chemistry, National Institute of Technology Karnataka, Surathkal, Mangalore, 575 025, India.
5
Department of P.G. Studies in Chemistry, Alva’s College (Autonomous), Moodubidire, 574 227, Dakshina Kannada, Karnataka, India.
10.22104/aet.2025.7536.2113
Abstract
Most of the water resources today are contaminated for various reasons and factors. Among them, dyes are also responsible for polluting aquatic systems and becoming a great threat to the environment. To overcome this problem, photocatalytic decomposition is one of the prominent ways to eradicate hazardous dyes in water. The hydrothermal synthesis of TiO2 nanotubes and nanofibers and their subsequent utility in degrading Reactive Black (RB) 5 dye is of great interest, and the resulting nanomaterials have been characterized and validated via various techniques such as Ultraviolet visible (UV-Vis) Spectroscopy, X-ray Diffraction (XRD) and Scanning Electron Microscopy (SEM) with Energy Dispersive Analysis (EDAX). Polysulfone (PSF) composite membranes lodged with the synthesized nanomaterials and were tested for the degradation of RB 5 dye. As a result, 89.8% and 80.2% dye degradation was found with the TiO2 nanofibers and TiO2 nanotubes, respectively. When the nanomaterials were allowed to act upon the dye solution alone, the TiO2 nanofibers degraded up to 48.7%, whereas TiO2 nanotubes degraded up to 18.6% because the strength of the nanomaterials was not enough for dye decomposition. Herein we report studies on the synthesis, and characterization of the nanomaterials and their combination for the enhanced dye degradation process.
Keywords
Main Subjects
)