Green Approach to Aerobic Suzuki Coupling Reaction in Water Based on Heterogeneous Palladium Nanoparticles (PdNPs@VRP) Catalyst Synthesized from Vetiver Root Powder

Using vetiver ( Chrysopogon zizanioides ) root powder as a natural reducing agent and support, we report for the first time a new, eco‐friendly method for the synthesis of heterogeneous palladium nanoparticles (PdNPs) that is nontoxic, renewable, and biodegradable. To convert Pd (II) to Pd (0), the lignin found in vetiver root powder (VRP) may function as an efficient reducing agent. This synthesis is in line with the ideas of green chemistry since it does not require any harsh chemicals for reduction. These synthesized PdNPs@VRP were characterized using XRD, FTIR, FESEM, TEM, EDS, XPS, and ICPMS. Findings show that the VRP can synthesize spherically shaped PdNPs with an average diameter of 4.91 nm. The Suzuki coupling reaction is used to assess the synthesized PdNPs' catalytic activity. In aerobic ligand‐free condition, it exhibits effective catalytic activity for the Suzuki coupling reaction in water. In the chemical, pharmaceutical, and agrochemical industries, the Suzuki coupling reaction is a crucial step in forming the C─C bond. In subsequent catalytic runs, the PdNPs@VRP can be recycled and utilized again without exhibiting a noticeable drop in activity.