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Abstract
Featured Application
photocatalyst for degradation of dyes.
AbstractPorphyrin nanostructures with well-controlled size, shape and functionality can be used for visible-light photocatalysis. In this work, a graphene@porphyrin nanofibre composite was successfully fabricated via arginine-mediated self-assembly of tetrakis (4-carboxyphenyl) porphyrin (TCPP) on graphene nanoplates (GNPs). The formation and crystallisation of the graphene@porphyrin nanofibre composite was fully characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), fourier transform infrared (FTIR), ultraviolet-visible (UV-vis) and fluorescence spectroscopy. The assembled TCPP nanofibers were 50–200 nm in diameter with length in micrometers long, which were densely and uniformly distributed on the surface of graphene. The GNPs@TCPP nanofibers showed enhanced visible-light photocatalytic activity in comparison with free-standing TCPP nanorods for the degradation of Rhodamine B (RhB) and methyl orange (MO). The possible photodegradation mechanism of these dyes by the GNPs@TCPP nanofiber photocatalyst was proposed.
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Details
1 School of Science, RMIT University, GPO BOX 2476, Melbourne, VIC-3001, Australia
2 Polymers and Functional Material Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, Telangana, India
3 Institute of Chemistry & Materials Science, 17 Hoang Sam, Hanoi 100000, Vietnam
4 School of Science, RMIT University, GPO BOX 2476, Melbourne, VIC-3001, Australia; Centre for Advanced Materials and Industrial Chemistry (CAMIC), RMIT University, GPO BSOX 2476, Melbourne, VIC-3001, Australia