Surface-modified CuO nanoparticles for photocatalysis and highly efficient energy storage devices

Area of Science:

• Materials Science
• Nanotechnology
• Electrochemistry

Background:

• Copper oxide (CuO) nanomaterials are attractive for energy storage and photocatalysis due to their properties.
• Existing applications require enhanced performance and multifunctionality.
• Surface modification can improve material characteristics.

Purpose of the Study:

• To develop multifunctional CuO nanomaterials for electrochemical energy storage and photocatalytic dye degradation.
• To enhance the performance of CuO nanomaterials through surface modification.
• To investigate the properties of CTAB-modified CuO nanomaterials.

Main Methods:

• Synthesis of surface-modified CuO nanomaterials using cationic surfactant CTAB.
• Characterization using X-ray Diffraction (XRD), Diffuse Reflectance Spectroscopy (DRS), Field Emission Scanning Electron Microscopy (FESEM), and Transmission Electron Microscopy (TEM).
• Electrochemical testing for capacitance and charge-discharge cycles.
• Photocatalytic degradation experiments using AR88 organic dye under UV light.

Main Results:

• Synthesized CuO nanomaterials demonstrated a capacitance of 133 F/g.
• Materials maintained performance over 2000 charge-discharge cycles.
• Achieved 94.8% degradation of AR88 dye at pH 11 with 1.0 g/L catalyst concentration under UV irradiation.

Conclusions:

• Surface modification of CuO nanomaterials with CTAB yields multifunctional materials.
• These materials show promise for next-generation electrochemical energy storage.
• The developed materials are effective photocatalysts for organic dye degradation.