1Department of Physics, Tezpur University, Tezpur 784028 Assam, India
2Department of Physics, Motilal Nehru National Institute of Technology, Allahabad 211004, Uttar Pradesh, India
Adv. Mater. Lett., 2019, 10 (1), pp 58-66
DOI: 10.5185/amlett.2019.2124
Publication Date (Web): Dec 10, 2018
Copyright © IAAM-VBRI Press
E-mail: ask@tezu.ernet.in
In most of the studies, toxic and harmful reducing agents were used for the chemical reduction of graphene oxide (GO) and into reduced graphene oxide (rGO). Here, onion juice is used as a natural and green reducing agent for the reduction of GO into rGO. The effect of onion juice concentration and reaction temperature on the reduction ability of onion juice have been studied. The present synthesis approach avoids the use of toxic and harmful chemicals for reduction of GO. The mechanism of reduction of GO at various concentrations of onion juice is explained in terms of presence of cysteine in the onion juice as one of the chemical constituents. The X-ray diffraction (XRD) results revealed the high degree of reduction with superior quality. Transmission electron microscopy (TEM) images provide clear evidence for the formation of transparent and thin layers of graphene. We have extended our analysis to reveal the quality of rGO produced by onion juice assisted reduction of GO using D, G and 2D bands present in the Raman spectra. Moreover, we have discussed the role of onion juice concentration and reaction temperature on evolution of D and G bands and ID/IG ratio, which in turn tell the overall growth of graphene sheet. Fourier transforms infrared spectroscopy (FTIR) measurements also show significant degree of reduction of GO. The UV-Vis. absorption spectrum further confirms the ability of onion juice to reduce GO into rGO. The synthesized product shows good dispersibility in aqueous solvent. Thus, the present report provides a green and facile approach for the synthesis of graphene derivatives with enormous potential.
Green reduction of GO, onion juice concentration, reaction temperature, degree of reduction.
Perspectives on Published Energy Sources and Smart Energy Supplies
State of Art Review on Nanobubbles
Eggshell Membrane Assisted CdS Nanoparticles for Manganese Removal in Water Treatment
Green Chemistry Synthesis of Nano-Hydroxyapatite using Natural Stabilisers
Structural, Optical and Electrical Properties of CaSnO3 and Ca0.98Nd0.02Sn0.98Ti0.02O3 Synthesized using Sol-Gel Method
Phase Change Materials Reinforced with Aluminium Foam for Latent Heat Storage
Influence of Manganese and Copper Doping on Structural and Optical Properties of Chromium Oxide Nanoparticles
Understanding of intriguing metal to semiconductor transition in Ni0.5Zn0.5Fe2O4 nanoparticulates
Flaw Resistance and Mode - I Fracture Energy Redistribution in Bamboo - A Correlation
COVID-19: A Significant Revival Approach - Concurrent Case Study in India
Recent Advances in Biochar Modification for Energy Storage in Supercapacitors: A Review
Viral Evolution of Multiple Coronavirus Genomes on Genomic Index Maps
Solution Combustion Synthesis and Energy Transfer in LaMgAl11O19:Tb3+/Sm3+ Tunable Phosphor
Influence of Fe3O4 and CTABr on the Rate of Degradation of Methylene Blue by H2O2
Effect of Sulfurization Temperature on RF Sputtered MoS2 Thin Film
Fatigue Analysis for Fe-34.5Mn-l0Al-0.76C Tidal Turbine Blades using Rainflow Algorithm
Modelling for the Study of Thermoelastic Properties of Nanoparticles
Potato Starch Edible Films as Environmentally Friendly Carriers for Model Drug: In vitro Release Study