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A novel photoanode based on Thorium oxide (ThO2) incorporated with graphitic Carbon nitride (g-C3N4) for Photoelectrochemical water splitting

In this study, a new insight into the doping engineering with nuclear fuel (ThO2) was performed and applied in photoelectrochemical (PEC) water splitting. The successfully synthesized g-C3N4/ThO2 (-5.8%) via thermal treatment and g-C3N4 polymerization (precursor: Urea, 30 min; 520 C) manifested a re...

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Main Authors: Mohamed, Nurul Aida, Ismail, Aznan Fazli, Safaei, Javad, Johan, Mohd Rafie, Teridi, Mohd Asri Mat
Format: Article
Published: Elsevier 2021
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TP Chemical technology
Online Access:http://eprints.um.edu.my/26799/
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spelling my.um.eprints.267992022-04-18T02:46:43Z http://eprints.um.edu.my/26799/ A novel photoanode based on Thorium oxide (ThO2) incorporated with graphitic Carbon nitride (g-C3N4) for Photoelectrochemical water splitting Mohamed, Nurul Aida Ismail, Aznan Fazli Safaei, Javad Johan, Mohd Rafie Teridi, Mohd Asri Mat TP Chemical technology In this study, a new insight into the doping engineering with nuclear fuel (ThO2) was performed and applied in photoelectrochemical (PEC) water splitting. The successfully synthesized g-C3N4/ThO2 (-5.8%) via thermal treatment and g-C3N4 polymerization (precursor: Urea, 30 min; 520 C) manifested a remarkable and superior photocatalytic activity. The photocurrent density achieved for g-C3N4/ThO2 was 9.71 mu cm(-2) at 1.23 V vs. Ag/ AgCl under simulated light (100 mW/cm(2)) that is more than twice compared with the un-doped g-C3N4 (-4.23 mu A cm(-2)). The introduction of Thorium Nitrate during g-C3N4 polymerization altered the chemical bonding, structure, and morphology, with the improved PEC stability of the photoanode. Besides, doping with ThO2 increased the intensity of triazine and C-N bond in the g-C3N4 network, as observed by FT-IR analysis. The unique ``hollow cylindrical'' architecture also increased the surface area, light absorption, as well as the catalytic sites. The enhanced separation of photo-generated electron-hole pairs reduced the carrier recombination that was obviously probed via Photoluminescence spectra. Therefore, due to the photostability and the good performance, the g-C3N4/ThO2 composite can be envisioned as a potential candidate in the field of photocatalysis and prospectively be applied in PEC solar water splitting. Elsevier 2021-12-15 Article PeerReviewed Mohamed, Nurul Aida and Ismail, Aznan Fazli and Safaei, Javad and Johan, Mohd Rafie and Teridi, Mohd Asri Mat (2021) A novel photoanode based on Thorium oxide (ThO2) incorporated with graphitic Carbon nitride (g-C3N4) for Photoelectrochemical water splitting. Applied Surface Science, 569. ISSN 0169-4332, DOI https://doi.org/10.1016/j.apsusc.2021.151043 <https://doi.org/10.1016/j.apsusc.2021.151043>. 10.1016/j.apsusc.2021.151043
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 TP Chemical technology
spellingShingle TP Chemical technology
Mohamed, Nurul Aida
Ismail, Aznan Fazli
Safaei, Javad
Johan, Mohd Rafie
Teridi, Mohd Asri Mat
A novel photoanode based on Thorium oxide (ThO2) incorporated with graphitic Carbon nitride (g-C3N4) for Photoelectrochemical water splitting
description In this study, a new insight into the doping engineering with nuclear fuel (ThO2) was performed and applied in photoelectrochemical (PEC) water splitting. The successfully synthesized g-C3N4/ThO2 (-5.8%) via thermal treatment and g-C3N4 polymerization (precursor: Urea, 30 min; 520 C) manifested a remarkable and superior photocatalytic activity. The photocurrent density achieved for g-C3N4/ThO2 was 9.71 mu cm(-2) at 1.23 V vs. Ag/ AgCl under simulated light (100 mW/cm(2)) that is more than twice compared with the un-doped g-C3N4 (-4.23 mu A cm(-2)). The introduction of Thorium Nitrate during g-C3N4 polymerization altered the chemical bonding, structure, and morphology, with the improved PEC stability of the photoanode. Besides, doping with ThO2 increased the intensity of triazine and C-N bond in the g-C3N4 network, as observed by FT-IR analysis. The unique ``hollow cylindrical'' architecture also increased the surface area, light absorption, as well as the catalytic sites. The enhanced separation of photo-generated electron-hole pairs reduced the carrier recombination that was obviously probed via Photoluminescence spectra. Therefore, due to the photostability and the good performance, the g-C3N4/ThO2 composite can be envisioned as a potential candidate in the field of photocatalysis and prospectively be applied in PEC solar water splitting.
format Article
author Mohamed, Nurul Aida
Ismail, Aznan Fazli
Safaei, Javad
Johan, Mohd Rafie
Teridi, Mohd Asri Mat
author_facet Mohamed, Nurul Aida
Ismail, Aznan Fazli
Safaei, Javad
Johan, Mohd Rafie
Teridi, Mohd Asri Mat
author_sort Mohamed, Nurul Aida
title A novel photoanode based on Thorium oxide (ThO2) incorporated with graphitic Carbon nitride (g-C3N4) for Photoelectrochemical water splitting
title_short A novel photoanode based on Thorium oxide (ThO2) incorporated with graphitic Carbon nitride (g-C3N4) for Photoelectrochemical water splitting
title_full A novel photoanode based on Thorium oxide (ThO2) incorporated with graphitic Carbon nitride (g-C3N4) for Photoelectrochemical water splitting
title_fullStr A novel photoanode based on Thorium oxide (ThO2) incorporated with graphitic Carbon nitride (g-C3N4) for Photoelectrochemical water splitting
title_full_unstemmed A novel photoanode based on Thorium oxide (ThO2) incorporated with graphitic Carbon nitride (g-C3N4) for Photoelectrochemical water splitting
title_sort novel photoanode based on thorium oxide (tho2) incorporated with graphitic carbon nitride (g-c3n4) for photoelectrochemical water splitting
publisher Elsevier
publishDate 2021
url http://eprints.um.edu.my/26799/
_version_ 1735409459929284608
score 13.211869

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