Green Synthesis of Nanoparticles Using Extract of Ecklonia Cava and Catalytic Activity for Synthetic Dyes

  • Kim, Beomjin (Department of Nano Fusion Technology, Pusan National University) ;
  • Song, Woo Chang (Department of Nano Fusion Technology, Pusan National University) ;
  • Park, Sun Young (Bio-IT Fusion Technology Research Institute, Pusan National University) ;
  • Park, Geuntae (Department of Nano Fusion Technology, Pusan National University)
  • Received : 2020.06.10
  • Accepted : 2020.08.19
  • Published : 2020.12.31


The green synthesis of inorganic nanoparticles (NPs) using biomaterials has garnered considerable attention in recent years because of its eco-friendly, non-toxic, simple, and low-cost nature. In this study, we synthesized NPs of noble metals, such as Ag and Au using an aqueous extract of a marine seaweed, Ecklonia cava. The formation of AgNPs and AuNPs was confirmed by the presence of surface plasmon resonance peaks in UV-Vis absorption spectra at approximately 430 and 530 nm, respectively. Various properties of the NPs were evaluated using characterization techniques, such as dynamic light scattering, transmission electron microscopy, energy-dispersive X-ray spectroscopy, Fourier transform infrared spectroscopy, and X-ray diffraction analysis. Phytochemicals in the seaweed extract, such as phlorotannins, acted as both reducing and stabilizing agents for the growth of the NPs. The green-synthesized AgNPs and AuNPs were found to exhibit high catalytic activity for the decomposition of organic dyes, including azo dyes, methylene blue, rhodamine B, and methyl orange.



This work was supported by Pusan National University Research Grant, 2019.


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