Degradation of Emamectin Benzoate by Chemical Catalytic Reaction of Graphitic Carbon Nitride Based Nanoparticle

Abstract

In recent years, metal–organic frameworks (MOFs), a new class of porous crystalline materials, have attracted great attention as a promising candidate for environmental remediation and catalytic applications. In this study, g-C3N4@ZIF-8 containing graphitic carbon nitride (g-C3N4) was synthesized to be used as a catalyst for the catalytic degradation of Emamectin benzoate pesticide with NaBH4. The synthesized gC3N4@ZIF-8 were characterized by Fourier Transform Infrared Spectroscopy, X-ray Diffraction, Scanning Electron Microscopy, Electron Dispersive X-ray and point of zero charge pH analysis. The degradation experiments of the synthetic pesticide were carried out in the presence of sodium borohydride (NaBH4) used as reducing agent and the degradation times of the pesticide were monitored in UV-Vis Spectrophotometer (UVVis). The catalytic activity of the prepared composite has been tested in aqueous medium at room temperature across a broad spectrum. Degradation experiments were conducted at room temperature in the presence of NaBH4, and the impact of various parameters such as pH, catalyst quantity, emamectin benzoate concentration, and NaBH4 amount has been thoroughly investigated in detail. g-C3N4@ZIF-8 nanocomposite showed superior NaBH4-induced chemical catalytic activity in degrading the toxic pollutant emamectin benzoate pesticide in a very short time. Kinetic parameters (k) for the degradation reactions were calculated and upon exposure to gC3N4@ZIF-8 nanoparticles, effective degradation of emamectin benzoate occurred in approximately 60 min. In the reduction reaction of emamectin benzoate pesticide with g-C3N4@ZIF-8, 70% degradation occurred within 60 min. This study provides insight into understanding nanoscale metal-organic frameworks (MOFs) in the removal of pesticides from wastewater.

Keywords

• Catalysis
• Graphitic carbon nitride
• Degradation
• Emamectin benzoate

References

1. Bayrak, A., Demir, S., Erer, H., Gubbuk, H. I., & Ersoz, M. (2024). Degradation of emamectin benzoate by chemical catalytic reaction of graphitic carbon nitride based nanoparticle. The Eurasia Proceedings of Science, Technology, Engineering & Mathematics (EPSTEM), 29, 106-112.