Preparation of Cu nanocomposites from EDA, DETA, and Jeffamine core PAMAM dendrimers with TRIS and carboxyl surface functional groups

Abstract

This study presents the synthesis and UV-VIS characterization of Cu nanocomposites from (EDA) (E), diethylene triamine (DETA) (D), and Jeffamine® T-403 (P) core PAMAM dendrimers with TRIS and carboxyl surface functional groups. Cu-PAMAM dendrimer encapsulated nanoparticles (Cu-DENs) were characterized by UV-VIS spectroscopy. Disappearance of the 680 nm d-d transition and 270-300 nm ligand to metal charge transfer (LMCT) peak and the formation of monotically increasing exponential band were used as the evidence of the successful synthesis of Cu-DENs in addition to immediate color change of dendrimer-metal mixture solutions from blue to golden brown by reduction. Synthesized Cu-DENs could be used as novel alternatives to the existing nanomaterials used in a wide range of applications involving bio and chemical sensors, catalysis, hydrogenations, oxidations, semiconductors, noble metals, magnetic dendrimer nanocomposites, environmental cleanup and many others.