Catalytic activity of multi-walled carbon nanotubes decorated with tungsten trioxides nanoparticles against 4-nitrophenol

Abstract

The fabrication of metallic oxide nanoparticles in a matrix material for use in catalysis has piqued researchers' curiosity, particularly in the aqueous phase. In this work, Multi-walled carbon nanotubes decorated with tungsten trioxide nanocomposites structure exhibit improved catalytic reduction activity in comparison to individual MWCNTs. the nanocomposites structure was prepared in just one step by infrared pulsed laser ablation (Nd:YAG laser, 1064 nm) of tungsten plate immersed in liquid media of functionalized multi-walled carbon nanotubes. Furthermore, the properties of composite hydrogels have been studied by X-ray diffraction, scanning electron microscope, transmission electron microscope, Fourier transforms infrared spectroscopy, energy-dispersive X-ray spectroscopy, X-ray photoelectron spectrometer, and thermal gravimetric analysis. The effective reduction of 4-Nitrophenol to 4-Aminophenol by NaBH4 was studied in the existence of the prepared nanocomposite structure of WO3-decorated MWCNTs. This nanocomposite demonstrated the large-scale possible use of organic catalytic oxidation and disposal of wastewater.