Graphene triggered enhancement in visible-light active photocatalysis as well as in energy storage capacity of (CFO)1-x(GNPs)x nanocomposites
Israr, Muhammad (Institut Català de Nanociència i Nanotecnologia)
Iqbal, Javed (Quaid-i-Azam University. Department of Physics)
Arshad, Aqsa (International Islamic University. Department of Physics)
Rani, Maria (Quaid-i-Azam University. Department of Physics)
Gómez-Romero, Pedro 1959- (Institut Català de Nanociència i Nanotecnologia)
Benages Vilau, Raúl (Institut Català de Nanociència i Nanotecnologia)

Data:	2020
Resum:	Cobalt ferrite-graphene nanoplatelets ((CFO)(GNPs)) nanocomposites are promising for efficient photocatalysis and high-performance supercapacitors. Multifunctional (CFO)(GNPs) nanocomposites prepared via facile chemical method have been investigated for their physio-chemical characteristics like crystal structure, morphology, chemical composition, optical properties, infrared vibrational modes, photocatalytic and supercapacitor applications. Interestingly, the photocatalytic activity of CFO nanostructures has been improved significantly from 38. 3% to 98. 7% with the addition of graphene which can be attributed to control over recombination of charge carriers. It is also found that the specific capacitance of the prepared (CFO)(GNPs) nanocomposite electrode at 0. 5 Ag is three times higher than that of only CFO based electrode which could be due to the conducting nature of graphene nanoplatelets (GNPs). The enhanced photocatalytic and improved electrochemical characteristics suggest the effective use of prepared nanocomposites in water purification and supercapacitor nanodevices.
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.
Llengua:	Anglès
Document:	Article ; recerca ; Versió sotmesa a revisió
Matèria:	Nanocomposites ; Electron-hole recombination ; Photocatalysis ; Supercapacitors
Publicat a:	Ceramics international, Vol. 46, Issue 3 (February 2020) , p. 2630-2639, ISSN 0272-8842

DOI: 10.1016/j.ceramint.2019.09.232

Preprint 29 p, 1.5 MB

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