In-situ fabrication of manganese ferrite grafted polyaniline nanocomposite: A magnetically reusable visible light photocatalyst and a robust electrode material for supercapacitor

Annette Jayam Somasundaram; Huifang Xiao; Sabarison Pandiyarajan; Ai-Ho Liao; Sharmila Lydia; Ho-Chiao Chuang

doi:10.1016/j.jcis.2023.03.170

In-situ fabrication of manganese ferrite grafted polyaniline nanocomposite: A magnetically reusable visible light photocatalyst and a robust electrode material for supercapacitor

J Colloid Interface Sci. 2023 Jul 15:642:584-594. doi: 10.1016/j.jcis.2023.03.170. Epub 2023 Mar 31.

Authors

Annette Jayam Somasundaram¹, Huifang Xiao², Sabarison Pandiyarajan³, Ai-Ho Liao⁴, Sharmila Lydia¹, Ho-Chiao Chuang⁵

Affiliations

¹ Post Graduate & Research Department of Chemistry, Bishop Heber College (affiliated to Bharathidasan University), Tiruchirappalli, Tamil Nadu, India.
² School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China.
³ Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 106344, Taiwan; Department of Mechanical Engineering, National Taipei University of Technology, Taipei 106344, Taiwan.
⁴ Graduate Institute of Biomedical Engineering, National Taiwan University of Science and Technology, Taipei 106335, Taiwan; Department of Biomedical Engineering, National Defense Medical Center, Taipei 114201, Taiwan.
⁵ Department of Mechanical Engineering, National Taipei University of Technology, Taipei 106344, Taiwan.

PMID: 37028165
DOI: 10.1016/j.jcis.2023.03.170

Abstract

Herein, we reported the in-situ preparation of manganese ferrite (MnFe₂O₄) grafted polyaniline (Pani), a magnetic nanocomposite for the potential visible light photocatalytic material as well as electrode material for supercapacitor. The physical characterization of the prepared nanoparticle and nanocomposite was examined with various spectroscopic and microscopic analyses. The peaks observed in the X-ray diffraction study confirm the face-centered cubic phase of MnFe₂O₄ nanoparticles with a grain size of ∼17.6 nm. The surface morphology analysis revealed the uniform distribution of spherical-like MnFe₂O₄ nanoparticles on the surface of Pani. The degradation of malachite green (MG) dye under exposure to visible light was investigated using MnFe₂O₄/Pani nanocomposite as a photocatalyst. The results exposed the faster degradation of MG dye was accomplished by MnFe₂O₄/Pani nanocomposite than MnFe₂O₄ nanoparticles. The energy storage performance of the MnFe₂O₄/Pani nanocomposite was analyzed through cyclic voltammetry, galvanostatic charge/discharge, and electrochemical impedance spectroscopy analyses. The results exposed that the MnFe₂O₄/Pani electrode achieved a capacitance of 287.1 F/g than the MnFe₂O₄ electrode (94.55 F/g). Further, the respectable capacitance of 96.92% was achieved even after 3000 repetitive cycles stability . Based on the outcomes, the MnFe₂O₄/Pani nanocomposite can be suggested as a promising material for both photocatalytic and supercapacitor applications.

Keywords: MnFe(2)O(4); Photocatalysis; Polyaniline; Supercapacitor.