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Photophysical and Electrochemical Studies of Anchored Chromium (III) Complex on Reduced Graphene Oxide via Diazonium Chemistry
Author(s) -
Jose Jemini,
Rajamani Athimotlu Raju,
Anandaram Sreekanth,
Jose Sujin P.,
Peter Sebastian C.,
P B Sreeja
Publication year - 2019
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.5063
Subject(s) - chemistry , graphene , cyclic voltammetry , high resolution transmission electron microscopy , raman spectroscopy , fourier transform infrared spectroscopy , x ray photoelectron spectroscopy , scanning electron microscope , glassy carbon , oxide , chromium , photoluminescence , salicylaldehyde , transmission electron microscopy , electrochemistry , analytical chemistry (journal) , inorganic chemistry , electrode , chemical engineering , nanotechnology , polymer chemistry , organic chemistry , materials science , physics , optoelectronics , engineering , composite material , optics , schiff base
Covalently anchored chromium complex on reduced graphene oxide (rGO‐Cr) is successfully synthesised through trimethoxy silyl propanamine (TMSPA) and phenyl azo salicylaldehyde (PAS) coupling. The rGO‐Cr is characterised by Fourier transform infrared spectroscopy (FTIR), X‐ray diffraction (XRD), X‐ray photoelectron spectroscopy (XPS), electron dispersive analysis of X‐rays (EDAX), Raman spectroscopy, scanning electron microscopy (SEM) and high resolution transmission electron microscopy (HRTEM). Absorption and emission properties of rGO‐TMSPA‐PAS are studied by excitation dependent photoluminescence emissions at room temperature. Electrochemical sensing activity of rGO‐Cr is monitored for paracetamol using modified glassy carbon electrode. Cyclic voltammetry measurements indicated that rGO‐Cr substantially enhance the eletrochemical response of paracetamol. The experimental factors are investigated and optimized.