Controlled synthesis of MWCNTs/V2O5 nanocomposite by hydrothermal approach for adsorption and photodegradation processes

The current paper outlines the synthesis of pristine multi-wall carbon nanotubes (PMWCNTs)/Vanadium pentoxide V2O5 and functionalized multi-wall carbon nanotubes (FMWCNTs)/V2O5 nanocomposite for photocatalytic applications. The FMWCNTs were obtained by the oxidizing agents (H2SO4 and HNO3) to introd...

Full description

Saved in:
Bibliographic Details
Published in:Water science and technology 2023-07, Vol.88 (2), p.392-407
Main Authors: Ashery, Marwa H., Elsehly, E. M., Elnouby, Mohamed, EL-Maghraby, E. M.
Format: Article
Language:English
Subjects:
Adsorption
Analytical methods
Carbon
Catalytic activity
Contaminants
Dyes
Electron microscopy
Ethanol
Fourier analysis
Fourier transforms
Functional groups
Graphene
Infrared analysis
Infrared spectroscopy
Kinetics
Methylene blue
Microscopy
Morphology
Multi wall carbon nanotubes
Nanocomposites
Nanoparticles
Nanostructured materials
Nanotechnology
Nanotubes
Oxidation
Oxidizing agents
Photocatalysis
Photodegradation
Pollutants
Scanning electron microscopy
Spectrum analysis
Sulfuric acid
Sulphuric acid
Synthesis
Textiles
Toxicity
Transmission electron microscopy
Vanadium
Vanadium pentoxide
Wastewater
Water pollution
X rays
X-ray diffraction
X-ray spectroscopy
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The current paper outlines the synthesis of pristine multi-wall carbon nanotubes (PMWCNTs)/Vanadium pentoxide V2O5 and functionalized multi-wall carbon nanotubes (FMWCNTs)/V2O5 nanocomposite for photocatalytic applications. The FMWCNTs were obtained by the oxidizing agents (H2SO4 and HNO3) to introduce the oxygenated functional groups. The samples were synthesized by hydrothermal approach and investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy analysis (EDX), and Fourier transform infrared spectroscopy (FTIR). The photocatalytic activity of multi-wall carbon nanotubes (MWCNTs), FMWCNTs/V2O5, and PMWCNTs/V2O5 nanocomposites was assessed via methylene blue (MB) degradation from water under visible light. The results demonstrated that the removal efficiency of MB by PMWCNTs, FMWCNTs/V2O5, and PMWCNTs/V2O5 could reach 90.4, 98.9, and 94.9%, respectively. It was noticed that MB adsorption and photodegradation tend to follow pseudo-second-order kinetics. The mechanism of MB photodegradation by FMWCNTs/V2O5 nanoparticles was explained. MWCNTs/V2O5 nanocomposites will allow further applications to remove other dyes and contaminants from wastewater.
ISSN:0273-1223
1996-9732
DOI:10.2166/wst.2023.217