g-C3N4/La2O3 nanocomposite as a photo-electrocatalyst in solar water splitting
The enhancement of g-C3N4 photocatalytic performance is most effectively achieved through doping or composite incorporation. Notably, rare-earth element nanocomposites, characterized by their exclusive 4f electronic configuration, have demonstrated remarkable potential in boosting photocurrent densi...
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Elsevier B.V.
2025
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| author | Mohamed N.A. Ismail A.F. Kiong T.S. |
| author2 | 57201821340 |
| author_facet | 57201821340 Mohamed N.A. Ismail A.F. Kiong T.S. |
| author_sort | Mohamed N.A. |
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| content_provider | Universiti Tenaga Nasional |
| content_source | UNITEN Institutional Repository |
| continent | Asia |
| country | Malaysia |
| description | The enhancement of g-C3N4 photocatalytic performance is most effectively achieved through doping or composite incorporation. Notably, rare-earth element nanocomposites, characterized by their exclusive 4f electronic configuration, have demonstrated remarkable potential in boosting photocurrent density. In this study, we successfully prepared a Lanthanum (La)-incorporated g-C3N4 composite using the methanolic dispersion method, resulting in a photostable photoanode. The optimized g-C3N4 composite, featuring approximately ?59.8 % La composition, exhibited a substantial photocurrent of approximately ?10.16 ?A cm?2, a significant improvement compared to the unaltered g-C3N4, which only achieved about 4.56 ?A cm?2 at 1.23 vs. Ag/AgCl. The introduction of lanthanum into the composite modified the elemental composition by introducing oxygen-doping into the g-C3N4 structure. Additionally, the unique dual nanostructures, comprising nanoparticles and nanoflakes, played a crucial role in enhancing catalytic sites, increasing surface area, and improving light absorption. According to the BET analysis, the N2 adsorption?desorption isotherms reveal that the SBET of g-C3N4/la2O3?59.8 % is approximately 74.84 m2 g?1, surpassing the surface area of pristine g-C3N4, which is approximately 65.32 m2 g?1. Moreover, the formation of the nanocomposite contributed to a reduction in the band gap from 2.82 eV (pure g-C3N4) to 2.74 eV (g-C3N4/La-59.8 %). In conclusion, due to its exceptional photostability and remarkable performance, the g-C3N4/La2O3 nanocomposite exhibits significant promise as a potential candidate in the field of photocatalysis, with prospective applications in Photoelectrochemical (PEC) solar water splitting. ? 2023 Elsevier B.V. |
| format | Article |
| id | my.uniten.dspace-37224 |
| institution | Universiti Tenaga Nasional |
| publishDate | 2025 |
| publisher | Elsevier B.V. |
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| spelling | my.uniten.dspace-372242025-03-03T15:48:53Z g-C3N4/La2O3 nanocomposite as a photo-electrocatalyst in solar water splitting Mohamed N.A. Ismail A.F. Kiong T.S. 57201821340 29067828200 57216824752 The enhancement of g-C3N4 photocatalytic performance is most effectively achieved through doping or composite incorporation. Notably, rare-earth element nanocomposites, characterized by their exclusive 4f electronic configuration, have demonstrated remarkable potential in boosting photocurrent density. In this study, we successfully prepared a Lanthanum (La)-incorporated g-C3N4 composite using the methanolic dispersion method, resulting in a photostable photoanode. The optimized g-C3N4 composite, featuring approximately ?59.8 % La composition, exhibited a substantial photocurrent of approximately ?10.16 ?A cm?2, a significant improvement compared to the unaltered g-C3N4, which only achieved about 4.56 ?A cm?2 at 1.23 vs. Ag/AgCl. The introduction of lanthanum into the composite modified the elemental composition by introducing oxygen-doping into the g-C3N4 structure. Additionally, the unique dual nanostructures, comprising nanoparticles and nanoflakes, played a crucial role in enhancing catalytic sites, increasing surface area, and improving light absorption. According to the BET analysis, the N2 adsorption?desorption isotherms reveal that the SBET of g-C3N4/la2O3?59.8 % is approximately 74.84 m2 g?1, surpassing the surface area of pristine g-C3N4, which is approximately 65.32 m2 g?1. Moreover, the formation of the nanocomposite contributed to a reduction in the band gap from 2.82 eV (pure g-C3N4) to 2.74 eV (g-C3N4/La-59.8 %). In conclusion, due to its exceptional photostability and remarkable performance, the g-C3N4/La2O3 nanocomposite exhibits significant promise as a potential candidate in the field of photocatalysis, with prospective applications in Photoelectrochemical (PEC) solar water splitting. ? 2023 Elsevier B.V. Final 2025-03-03T07:48:52Z 2025-03-03T07:48:52Z 2024 Article 10.1016/j.surfin.2023.103639 2-s2.0-85179117495 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85179117495&doi=10.1016%2fj.surfin.2023.103639&partnerID=40&md5=d10edd0f58fc3a234a9b147e7284e936 https://irepository.uniten.edu.my/handle/123456789/37224 44 103639 Elsevier B.V. Scopus |
| spellingShingle | Mohamed N.A. Ismail A.F. Kiong T.S. g-C3N4/La2O3 nanocomposite as a photo-electrocatalyst in solar water splitting |
| title | g-C3N4/La2O3 nanocomposite as a photo-electrocatalyst in solar water splitting |
| title_full | g-C3N4/La2O3 nanocomposite as a photo-electrocatalyst in solar water splitting |
| title_fullStr | g-C3N4/La2O3 nanocomposite as a photo-electrocatalyst in solar water splitting |
| title_full_unstemmed | g-C3N4/La2O3 nanocomposite as a photo-electrocatalyst in solar water splitting |
| title_short | g-C3N4/La2O3 nanocomposite as a photo-electrocatalyst in solar water splitting |
| title_sort | g-c3n4/la2o3 nanocomposite as a photo-electrocatalyst in solar water splitting |
| url_provider | http://dspace.uniten.edu.my/ |