Green synthesis of palladium nanoparticles using Chlorella vulgaris

In this paper, the green synthesis of palladium nanoparticles by Chlorella vulgaris aqueous extract was studied. The synthesis of palladium nanoparticles was observed within 10 min. The synthesized nanoparticles were confirmed by Transmission Electron Microscopy, Scanning Electron Microscopy, Fourier Transform Infrared Spectroscopy, and UV-spectroscopy. The formation of palladium nanoparticles was confirmed by the presence of an absorption peak between 410 and 420 nm using UV-visible spectrophotometer. TEM image revealed that average particle size is 15 nm whereas others are in the range of 5-20 nm. The nanoparticles were crystalline in nature which was confirmed by XRD pattern. FT-IR indicated that polyol and amide groups present in C. vulgaris may have participated in the synthesis of palladium nanoparticles. So, functional groups has a critical role in reducing the metal ions in an eco-friendly and non-toxic process.