Green synthesis of ZnO and Ni-doped ZnO from okra stalks for the photocatalytic degradation of Procion Red MX-5B.

Int J Phytoremediation

Department of Chemical Engineering, Faculty of Engineering, Sivas University of Science and Technology, Sivas, Turkey.

Published: October 2024

AI Article Synopsis

  • This study explores the use of ZnO and Ni-doped ZnO catalysts made from okra stalks for breaking down the dye Procion Red MX-5B (PRM) through photocatalysis.
  • It examines how different factors like hydrogen peroxide concentration, amount of catalyst, nickel doping, initial dye concentration, and pH affect the degradation efficiency.
  • The research finds that under optimal conditions, the Ni-doped ZnO catalyst achieves a 98.08% degradation rate, outperforming the ZnO catalyst's 82.99%, highlighting their effectiveness in removing organic pollutants.

Article Abstract

This study investigates the photocatalytic degradation of Procion Red MX-5B (PRM) using ZnO and Ni-doped ZnO catalysts derived from okra stalks through a green synthesis method. Various parameters, including hydrogen peroxide concentration (HPC), catalyst amount, nickel (Ni) doping amount, initial PRM concentration, and pH, are systematically studied to assess their impact on PRM degradation efficiency. The results reveal that both ZnO and Ni-doped ZnO catalysts exhibit promising photocatalytic activity, with the highest PRM degradation efficiency achieved at the following reaction conditions: 6 mM of HPC, 40 mg of Ni(7%):ZnO catalyst, 10 ppm initial PRM concentration, and pH = 6. Under these conditions, the Ni-doped ZnO catalyst demonstrated a degradation efficiency of 98.08% compared to 82.99% for the ZnO catalyst. The study highlights the potential of these catalysts for efficient organic pollutant removal and provides valuable insights into the factors influencing their photocatalytic performance.

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http://dx.doi.org/10.1080/15226514.2024.2411248DOI Listing

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Article Synopsis
  • This study explores the use of ZnO and Ni-doped ZnO catalysts made from okra stalks for breaking down the dye Procion Red MX-5B (PRM) through photocatalysis.
  • It examines how different factors like hydrogen peroxide concentration, amount of catalyst, nickel doping, initial dye concentration, and pH affect the degradation efficiency.
  • The research finds that under optimal conditions, the Ni-doped ZnO catalyst achieves a 98.08% degradation rate, outperforming the ZnO catalyst's 82.99%, highlighting their effectiveness in removing organic pollutants.
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