10.57647/j.ijnd.2025.1604.29

Synthesis, characterization of Graphene Oxide/ZnO/Al2O3 nanocomposite Aerogel and its electrochemical application

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  • Barakat Abdul-Fattah Kamil*1,
  • Dhia Hadi Hussain2,
  1. Department of Chemistry, College of Science , Al-Mustansiriyah University, Iraq
  2. Department of Chemistry, College of Science, Al-Mustansiriyah University, Iraq
Synthesis, characterization of Graphene Oxide/ZnO/Al2O3 nanocomposite Aerogel and its electrochemical application

Received: 2025-01-12

Revised: 2025-04-10

Accepted: 2025-05-01

Published in Issue 2025-05-17

Copyright (c) -1 Barakat Abdul-Fattah Kamil, Dhia Hadi Hussain (Author)

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

Kamil, B. A.-F., & Hadi Hussain, D. (2025). Synthesis, characterization of Graphene Oxide/ZnO/Al2O3 nanocomposite Aerogel and its electrochemical application. International Journal of Nano Dimension, 16(4 (October 2025). https://doi.org/10.57647/j.ijnd.2025.1604.29
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Abstract

In this study, nanocomposite GO/ZnO/Al2O3 aerogels with different GO ratios (10, 30, and 50 %) were effectively prepared using a hydrothermal method and a modified Hummers method to prepare GOES. ZnO and Al2O3 NPs were synthesized from curcumin extract using a green synthesis method. Raman, XRD, EDX, FESEM and UV-Vis. Spectra were used to characterize the synthesized nanomaterials. The bandgap energies of GO, ZnO, Al2O3, and their nanocomposites were calculated from their UV spectra. The interaction between the components of the nanocomposite graphene oxide, zinc oxide and aluminum oxide give the nanocomposite photochemical importance owing to the large surface area of ​​the components, especially graphene oxide and zinc oxide, and the high electrical and thermal conductivities of the molecule. Improved electrochemical properties were achieved by fabricating dye-sensitized solar cells, composed of nano curcumin and methylene blue as sensitizers, GO/ZnO/Al2O3 nanocomposite aerogel as a photoanode to obtain a highly efficient cell at the lowest cost and copper as the counter electrode. The DSSC achieves the best performance at 0.36% and 50% GO content when methylene blue is used as a sensitizer to accelerate the excitation of electrons and generate current and voltage. The primary objective of this study is to develop dye-sensitized solar cells with maximum efficiency at minimum cost.

Keywords

  • Electrochemical Application and Dye-Sensitized Solar Cell (DSSC),
  • FESEM,
  • Graphene Oxide,
  • Nanocomposite Aerogel,
  • Nanocurcumin
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