Musa paradisiaca reduced graphene oxide (BRGO) /MWCNT-Fe3O4nanocomposite for supercapacitor and photocatalytic applications

Subramanian Ramanathan, M. Sasikumar, N. Radhika, Asir Obadiah, Arulappan Durairaj, G. Helen Swetha, Palanisamy Santhoshkumar, I. Sharmila Lydia, Samuel Vasanthkumar

Research output: Contribution to journalConference articlepeer-review

13 Scopus citations

Abstract

This paper reports novel eco-friendly reduction of GO to RGO (BRGO) by Musa paradisiaca extract for choice in many areas of application. However, the layer by layer tight stackin in their thin film form inevitably diminishes the interlayer space between homogeneous ultrathin nanosheets, which could significantly hinder the electrolyte diffusion. Herein, Fe3O4nano particles are uniformly dispersed on MWCNT with the less agglomeration and then fabricated composite with BRGO for energy storage (supercapacitor) and water remediation (photocatalytic) application. After preparation, the BRGO Fe3O4-MWCNT nanocomposite was characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), UV-Visible spectroscopy (UV), transmission electron Microscopy (TEM) and scanning electron microscope (SEM) analyses. The electrochemical behaviour of the material was analysed by cyclic voltammetry (CV), galvanometric charge-discharge (GCD) study and impedance spectroscopy. The photocatalytic degradation was carried out in a photocatalytic chamber. The synthesized nanocomposite exhibited a high specific capacitance value of 165 F/g at 2 A/g and also showed good photo degradation efficiency on the methylene green dye (MG), which is higher than the degradation efficiency of other individual materials like Fe3O4-MWCNT and BRGO. The prepared nanocomposite was found to have good cyclic stability in the capacitance study and it mineralizes the organic dye to an extent of 94%. BRGO-Fe3O4-MWCNT as effective nanocomposite for application as advanced supercapacitor electrode and developing novel photocatalyst for remedy of environmental problems.

Original languageEnglish
Pages (from-to)843-852
Number of pages10
JournalMaterials Today: Proceedings
Volume47
DOIs
StatePublished - 2020
Externally publishedYes
Event1st International Conference on Frontiers in Chemical Sciences, ICFCS 2020 - Tamil Nadu, India
Duration: 4 Mar 20205 Mar 2020

Bibliographical note

Publisher Copyright:
© 2020 Elsevier Ltd. All rights reserved.

Keywords

  • Cyclic voltammetry
  • Methylene green dye
  • Musa paradisiaca
  • Nanocomposite
  • Photocatalytic
  • Reduced graphene oxide
  • Supercapacitor

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