Eco-Friendly and Green Synthesis of Palladium Nanoparticles with Sargassum Alga and Their Electrocatalytic Activities towards Hydrogen Peroxide

The crude extract of Sargassum alga was used as a reducing agent in the ecofriendly synthesis of palladiumnanoparticles from an aqueous PdCl2 solution. The electrochemical oxidation of hydrogen peroxide was investigated atPd nanoparticles modified carbon ionic liquid electrode (Pd/CILE). Pd/CILE surface showed excellent electrocatalyticactivity (low overpotential of -0.05 V vs. Ag/AgCl) towards reduction of hydrogen peroxide. A wide linear dynamicrange of 2 μM– 9 mM with an experimental detection limit of 1 μM make the constructed sensor suitable for peroxidedetermination in aqueous solutions.

Keywords:

Palladium Nanoparticles , Sargassum , Alga , H2O2 , Carbon Ionic Liquid Electrode