Additional data on the investigation of the reaction mechanisms for the production of silica hyperbranched polyethylene imine silver nanoparticle composites

Michael Arkas; Marilina Douloudi; Eleni Nikoli; Georgia Karountzou; Ioanna Kitsou; Eleni Kavetsou; Dimitrios Korres; Stamatina Vouyiouka; Athena Tsetsekou; Konstantinos Giannakopoulos; Michaela Papageorgiou

doi:10.1016/j.dib.2022.108374

Additional data on the investigation of the reaction mechanisms for the production of silica hyperbranched polyethylene imine silver nanoparticle composites

Data Brief. 2022 Jun 15:43:108374. doi: 10.1016/j.dib.2022.108374. eCollection 2022 Aug.

Affiliations

¹ Institute of Nanoscience Nanotechnology NCSR "Demokritos", Patriarchou Gregoriou Str., Aghia Paraskevi, Athens 15310, Greece.
² School of Mining Engineering and Metallurgy, National Technical University of Athens, Iroon Polytechneiou 9, Athens 15780, Greece.
³ School of Chemical Engineering, National Technical University of Athens, Iroon Polytechneiou 9, Athens, Athens 15780, Greece.

Abstract

Silica-organic matrix-silver, nano-catalysts, were synthesized employing four different hyperbranched poly(ethylene imines) (MW 2000 to 750,000) to reduce Ag⁺ to metal nanoparticles and the formation of formation SiO₂ shells. The latter is performed at pH 7,5 employing three different pH regulating agents Hepes, Trizma, and Phosphate Salts. Characterization of the resulting materials with spectroscopy (FTIR), thermogravimetry (TG), scanning electron microscopy (SEM), and ζ-potential is reported. Kinetic studies of standard reactions, 4-nitrophenol and 4-nitroaniline reduction to 4-aminophenol and p-phenylenediamine, respectively by UV-Visible spectroscopy are also included. This data in brief article is related to the "Investigation of two Bioinspired Reaction Mechanisms for the Optimization of Eco Composites-Nano Catalysts Generated from Hyperbranched Polymer Matrices" manuscript submitted to reactive & functional polymers.

Keywords: Biomimetic chemistry; Catalysis; Composite materials; Dendrimers; Dendritic polymers; Hybrid materials; Hyperbranched polymers; Metal nanoparticles.