Articles
  • Green synthesis of CuO nanoparticles for photocatalytic applications: structural and optical characterization

  • Reyhan Gitmişa and Ayça Tanrıverdia,b,*

  • aDepartment of Material Science and Engineering, Graduate School of Natural and Applied Sciences, Kahramanmaras Sutcu Imam University, Kahramanmaras, Türkiye
    bVocational School of Health Services, Dept. of Opticianry, Kahramanmaras Sutcu Imam University, Kahramanmaras, Türkiye

  • This article is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Organic dye contamination in wastewater is a growing environmental threat that requires environmentally friendly and efficient treatment solutions. In this study, copper oxide nanoparticles (CuO NPs) were synthesized via an environmentally friendly method using Ocimum basilicum and Solanum melongena plant extracts. The resulting NPs exhibited different sizes (~50 nm and ~20 nm, respectively) and band gaps (2.26 eV and 1.94 eV), with characterization confirming their crystalline and nanoscale nature. Under solar light, S. melongena derived CuO NPs achieved superior photocatalytic degradation of methylene blue (92.27%) and brilliant blue (55.22%) dyes. These results highlight the promising role of plant-mediated CuO NPs as sustainable photocatalysts for wastewater remediation.


Keywords: Green synthesis, CuO NPs, Organic dye degradation, Photocatalysis, Kinetic mechanism.

This Article

  • 2025; 26(4): 586-595

    Published on Aug 31, 2025

  • 10.36410/jcpr.2025.26.4.586
  • Received on May 8, 2025
  • Revised on Jun 12, 2025
  • Accepted on Jul 3, 2025

Correspondence to

  • Ayça Tanrıverdi

  • aDepartment of Material Science and Engineering, Graduate School of Natural and Applied Sciences, Kahramanmaras Sutcu Imam University, Kahramanmaras, Türkiye
    bVocational School of Health Services, Dept. of Opticianry, Kahramanmaras Sutcu Imam University, Kahramanmaras, Türkiye
    Tel : +90 (344) 300-2815 Fax: +90 (344) 300 28 02

  • E-mail: aycatanriverdi@ksu.edu.tr