Synthesis and photocatalytic activity of WO3 nanocomposites incorporating GO and MWCNTs for enhanced Rhodamine-B degradation
Rhizlane Hatel (University Sidi Mohammed Ben Abdellah)
Issam Boukhoubza (National Institute of Materials Physics, University Sidi Mohammed Ben Abdellah)
Issam Derkaoui (University Sidi Mohammed Ben Abdellah)
Mohamed A.Basyooni M. Kabatas (Selçuk University, TU Delft - Dynamics of Micro and Nano Systems)
Elena Matei (National Institute of Materials Physics)
Monica Enculescu (National Institute of Materials Physics)
Mimouna Baitoul (University Sidi Mohammed Ben Abdellah)
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Abstract
In this study, we developed a ternary nanocomposite using graphene oxide (GO), multiwalled carbon nanotubes (MWCNTs), and tungsten trioxide (WO3), nanostructures, synthesized via a straightforward chemical process with ultrasound assistance. The initial composition was GO/MWCNT, later combined with WO3 to form the GO/MWCNT: WO3 (25/25:50) structure. Characterization was performed using X-ray diffraction, which revealed the multiphase nature of the WO3 nanostructures. Scanning Electron Microscopy showed the one-dimensional CNTs interwoven with graphene oxide sheets decorated with densely populated WO3 nanopetals. Fourier transform infrared and Raman spectroscopy confirmed the chemical composition of the system. The photocatalytic degradation of Rhodamine-B in water under visible light irradiation was significantly enhanced using the GO/MWCNT: WO3 nanocomposite, achieving an 85 % degradation rate compared to only 10 % by GO alone, highlighting its potential for environmental remediation.