Abstract

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photocatalyst for degradation of dyes.

Abstract

Porphyrin 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.

Details

Title
Arginine-Mediated Self-Assembly of Porphyrin on Graphene: A Photocatalyst for Degradation of Dyes
Author
Duong Duc La 1 ; Hangarge, Rahul V 1 ; Bhosale, Sidhanath V 2 ; Ha, Duc Ninh 3 ; Jones, Lathe A 4 ; Bhosale, Sheshanath V 1 

 School of Science, RMIT University, GPO BOX 2476, Melbourne, VIC-3001, Australia 
 Polymers and Functional Material Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, Telangana, India 
 Institute of Chemistry & Materials Science, 17 Hoang Sam, Hanoi 100000, Vietnam 
 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 
First page
643
Publication year
2017
Publication date
2017
Publisher
MDPI AG
e-ISSN
20763417
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2533516145
Copyright
© 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.