Open AccessSelective oxidation of benzyl alcohol by reduced graphene oxide supported platinum nanoparticles
Author(s) -
Hadeel Altaee,
Hassan Abbas Alshamsi
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1664/1/012074
Subject(s) - benzyl alcohol , graphene , sodium borohydride , oxidizing agent , catalysis , reducing agent , fourier transform infrared spectroscopy , hydrogen peroxide , scanning electron microscope , alcohol oxidation , materials science , nuclear chemistry , raman spectroscopy , oxide , inorganic chemistry , chemistry , chemical engineering , organic chemistry , nanotechnology , physics , optics , engineering , composite material
The Pt / rGO nanocatalyst was synthesized by the immobilization method by deposition of platinum nanoparticles on reduced graphene oxide (rGO) as a support material. The support (rGO) was prepared from the reduction of graphene oxide (GO) by the reducing agent sodium borohydride (NaBH4), while (GO) was prepared from the graphite oxidation using the modified Hummer method. Morphological, chemical and structural characteristics of synthesized samples were investigated by Scanning Electron Microscope (SEM), transmittance Scanning Microscope (TEM), Fourier Transform Infrared Spectroscopy (FTIR), X-ray Diffraction (XRD), and X-ray and Raman Spectroscopy. The performance of the Pt/rGO catalysts were evaluated in the benzyl alcohol oxidation to produce benzaldehyde using an environmentally friendly oxidizing agent, hydrogen peroxide, under moderate conditions. The variables that were studied on oxidation of benzyl alcohol were temperature, catalyst mass and H 2 O 2 concentration. The best results were achieved when the catalyst amount was 10 mg, 50% hydrogen peroxide concentration and 80 °C reaction temperature. The conditions under which the reaction was carried out are moderate reaction conditions, and the oxidizing agent (H 2 O 2 ) is an environmentally friendly oxidizing agent.