Green synthesis and characterization of palladium nanoparticles and their catalytic performance for the efficient synthesis of biologically interesting di(indolyl)indolin-2-ones

Green synthesis and characterization of spherical copper nanoparticles as organometallic antibacterial agent

“…Based on these results, a mechanism for the formation of Cu NPs can be proposed as shown in Scheme . The related mechanism of reduction of metal salts to metal NPs using bioactive phytomolecules has been previously reported . On the basis of this mechanism, the polyols and carbonyl groups of the biomolecules present in the aqueous extract bind with Cu 2 + ions to form metal complexes, which are reduced to seed particles (Cu 0 ).…”

Preparation of a novel palladium catalytic hydrogel based on graphene oxide/chitosan NPs and cellulose nanowhiskers

“…The PdCl 2 solution shows strong absorption peaks at 421 nm and 306 nm, which correspond to the ligand-to-metal charge-transfer transition between the Pd 2+ and Cl À ions. 35,36 It can be seen that with an increase in the hydrogel exposure time, the intensity of the absorption band at 421 nm and 306 nm decreased. During 80 min of stirring for PdCl 2 (0.5 g in 50 mL H 2 O), the intensity of the absorption peak decreased and nally it disappeared (Fig.…”

Greener approach for synthesis of monodispersed palladium nanoparticles using aqueous extract of green tea and their catalytic activity for the Suzuki–Miyaura coupling reaction and the reduction of nitroarenes

“…A mechanism for the formation of Pd NPs can be proposed, as shown in Scheme . The related mechanism of reduction of metal salts to metal NPs using bioactive phytomolecules has already been reported . On the basis of this mechanism, the polyols and carbonyl groups of the biomolecules present in the aqueous extract bind with the Pd 2 + ions to form metal complexes, which are reduced to seed particles (Pd 0 ).…”