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<p>This study presents a novel, one-step plasma-liquid synthesis method for producing nanocomposites of carbonitride MXenes containing graphene oxide by initiating a pulsed discharge between titanium or molybdenum electrodes immersed in acetonitrile. The synthesized composites were characterized using electron microscopy, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, and Fourier-transform infrared spectroscopy (FTIR). XPS and FTIR revealed the presence of Ti–N, Mo–N, and C–O bonds, thereby validating the chemical composition of the substances. Electron microscopy demonstrated an accordion-like multilayer morphology. Notably, the composites exhibited excellent photothermal conversion efficiencies of 75% for Ti<sub>2</sub>CNT<sub><i>x</i></sub>/GO and 90% for Mo<sub>2</sub>CNT<sub><i>x</i></sub>/GO, surpassing those of conventional MXenes and graphene oxide. This environmentally friendly approach eliminates the need for hazardous etchants (e.g., HF) and high-temperature processes, offering a scalable alternative for MXene-based materials. The results of this study highlight the potential of these composites in solar energy harvesting, desalination, and biomedical applications.</p>

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One-step plasma-liquid synthesis of carbonitride MXenes/graphene oxide composites and their structural and photothermal properties

  • 期刊论文

  • 发表日期：

    2025年6月1日

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  • Nikolay Sirotkin,
  • Anna Khlyustova,
  • Alexander Agafonov

摘要

This study presents a novel, one-step plasma-liquid synthesis method for producing nanocomposites of carbonitride MXenes containing graphene oxide by initiating a pulsed discharge between titanium or molybdenum electrodes immersed in acetonitrile. The synthesized composites were characterized using electron microscopy, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, and Fourier-transform infrared spectroscopy (FTIR). XPS and FTIR revealed the presence of Ti–N, Mo–N, and C–O bonds, thereby validating the chemical composition of the substances. Electron microscopy demonstrated an accordion-like multilayer morphology. Notably, the composites exhibited excellent photothermal conversion efficiencies of 75% for Ti2CNTx/GO and 90% for Mo2CNTx/GO, surpassing those of conventional MXenes and graphene oxide. This environmentally friendly approach eliminates the need for hazardous etchants (e.g., HF) and high-temperature processes, offering a scalable alternative for MXene-based materials. The results of this study highlight the potential of these composites in solar energy harvesting, desalination, and biomedical applications.