Staff View: Fabrication and physicochemical characterization of g-C3N4/ZnO composite with enhanced photocatalytic activity under visible light

Fabrication and physicochemical characterization of g-C3N4/ZnO composite with enhanced photocatalytic activity under visible light

The present study deals with the synthesis, characterization and photocatalytic activity of g-C3N4/ZnO composite towards the degradation of significant dyes like Malachite green (MG), Rhodamine-B (Rh-B), Congo red (Con-R), and Red ink (RI) solution. For the synthesis of the g-C3N4/ZnO composite, we...

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Main Authors:	Mathialagan, Abinaya, Manavalan, Muthukumaran, Venkatachalam, K., Mohammad, Faruq, Oh, Won Chun, Sagadevan, Suresh
Format:	Article
Published:	Elsevier 2020
Subjects:	Q Science (General) QC Physics
Online Access:	http://eprints.um.edu.my/36928/
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spelling	my.um.eprints.369282024-11-07T01:20:08Z http://eprints.um.edu.my/36928/ Fabrication and physicochemical characterization of g-C3N4/ZnO composite with enhanced photocatalytic activity under visible light Mathialagan, Abinaya Manavalan, Muthukumaran Venkatachalam, K. Mohammad, Faruq Oh, Won Chun Sagadevan, Suresh Q Science (General) QC Physics The present study deals with the synthesis, characterization and photocatalytic activity of g-C3N4/ZnO composite towards the degradation of significant dyes like Malachite green (MG), Rhodamine-B (Rh-B), Congo red (Con-R), and Red ink (RI) solution. For the synthesis of the g-C3N4/ZnO composite, we have adopted the chemical precipitation method where the composite was thoroughly analyzed for the crystallinity, optical performance, and morphology by making use of the instrumental methods like powdered X-ray diffraction (PXRD), Fourier transform-infrared spectroscopy (FTIR), UV-Vis diffuse reflection spectroscopy (UV-Vis), Transmission electron microscopy (TEM), Atomic force microscopy (AFM), and thermogravimetric (TGA) analysis. It was found from the PXRD and TEM analysis that the composite maintains hexagonal wurtzite phases for the ZnO and g-C3N4 compounds, while the UV-Vis spectrum confirmed that the composite's absorption edge is getting shifted to the lower energy and wavelength region as compared to ZnO. On testing the photocatalytic activity under the UV light towards the dye degradation, the g-C3N4/ZnO composite is indicated to have significant performance and thereby supporting the synergistic impact of each component. The observation of such activity in the g-C3N4/ZnO composite can be investigated to be due to the composite's enhanced stability in the aqueous solution (supported by the lower amounts of Zn2+), in addition to the improved electron-hole separations and synergistic photocatalytic mechanism between ZnO and g-C3N4. Elsevier 2020-02 Article PeerReviewed Mathialagan, Abinaya and Manavalan, Muthukumaran and Venkatachalam, K. and Mohammad, Faruq and Oh, Won Chun and Sagadevan, Suresh (2020) Fabrication and physicochemical characterization of g-C3N4/ZnO composite with enhanced photocatalytic activity under visible light. Optical Materials, 100. ISSN 0925-3467, DOI https://doi.org/10.1016/j.optmat.2019.109643 <https://doi.org/10.1016/j.optmat.2019.109643>. 10.1016/j.optmat.2019.109643
institution	Universiti Malaya
building	UM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaya
content_source	UM Research Repository
url_provider	http://eprints.um.edu.my/
topic	Q Science (General) QC Physics
spellingShingle	Q Science (General) QC Physics Mathialagan, Abinaya Manavalan, Muthukumaran Venkatachalam, K. Mohammad, Faruq Oh, Won Chun Sagadevan, Suresh Fabrication and physicochemical characterization of g-C3N4/ZnO composite with enhanced photocatalytic activity under visible light
description	The present study deals with the synthesis, characterization and photocatalytic activity of g-C3N4/ZnO composite towards the degradation of significant dyes like Malachite green (MG), Rhodamine-B (Rh-B), Congo red (Con-R), and Red ink (RI) solution. For the synthesis of the g-C3N4/ZnO composite, we have adopted the chemical precipitation method where the composite was thoroughly analyzed for the crystallinity, optical performance, and morphology by making use of the instrumental methods like powdered X-ray diffraction (PXRD), Fourier transform-infrared spectroscopy (FTIR), UV-Vis diffuse reflection spectroscopy (UV-Vis), Transmission electron microscopy (TEM), Atomic force microscopy (AFM), and thermogravimetric (TGA) analysis. It was found from the PXRD and TEM analysis that the composite maintains hexagonal wurtzite phases for the ZnO and g-C3N4 compounds, while the UV-Vis spectrum confirmed that the composite's absorption edge is getting shifted to the lower energy and wavelength region as compared to ZnO. On testing the photocatalytic activity under the UV light towards the dye degradation, the g-C3N4/ZnO composite is indicated to have significant performance and thereby supporting the synergistic impact of each component. The observation of such activity in the g-C3N4/ZnO composite can be investigated to be due to the composite's enhanced stability in the aqueous solution (supported by the lower amounts of Zn2+), in addition to the improved electron-hole separations and synergistic photocatalytic mechanism between ZnO and g-C3N4.
format	Article
author	Mathialagan, Abinaya Manavalan, Muthukumaran Venkatachalam, K. Mohammad, Faruq Oh, Won Chun Sagadevan, Suresh
author_facet	Mathialagan, Abinaya Manavalan, Muthukumaran Venkatachalam, K. Mohammad, Faruq Oh, Won Chun Sagadevan, Suresh
author_sort	Mathialagan, Abinaya
title	Fabrication and physicochemical characterization of g-C3N4/ZnO composite with enhanced photocatalytic activity under visible light
title_short	Fabrication and physicochemical characterization of g-C3N4/ZnO composite with enhanced photocatalytic activity under visible light
title_full	Fabrication and physicochemical characterization of g-C3N4/ZnO composite with enhanced photocatalytic activity under visible light
title_fullStr	Fabrication and physicochemical characterization of g-C3N4/ZnO composite with enhanced photocatalytic activity under visible light
title_full_unstemmed	Fabrication and physicochemical characterization of g-C3N4/ZnO composite with enhanced photocatalytic activity under visible light
title_sort	fabrication and physicochemical characterization of g-c3n4/zno composite with enhanced photocatalytic activity under visible light
publisher	Elsevier
publishDate	2020
url	http://eprints.um.edu.my/36928/
_version_	1816130387468877824
score	13.223943

Fabrication and physicochemical characterization of g-C3N4/ZnO composite with enhanced photocatalytic activity under visible light

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