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A well-defined S-g-C(3)N(4)/Cu–NiS heterojunction interface towards enhanced spatial charge separation with excellent photocatalytic ability: synergetic effect, kinetics, antibacterial activity, and mechanism insights

A well-defined heterojunction among two dissimilar semiconductors exhibited enhanced photocatalytic performance owing to its capability for boosting the photoinduced electron/hole pair transportation. Therefore, designing and developing such heterojunctions using diverse semiconductor-based material...

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Autores principales: Abubshait, Haya A., Iqbal, Shahid, Abubshait, Samar A., Alotaibi, Mohammed T., Alwadai, Norah, Alfryyan, Nada, Alsaab, Hashem O., Awwad, Nasser S., Ibrahium, Hala A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8979347/
https://www.ncbi.nlm.nih.gov/pubmed/35425388
http://dx.doi.org/10.1039/d1ra07974c
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author Abubshait, Haya A.
Iqbal, Shahid
Abubshait, Samar A.
Alotaibi, Mohammed T.
Alwadai, Norah
Alfryyan, Nada
Alsaab, Hashem O.
Awwad, Nasser S.
Ibrahium, Hala A.
author_facet Abubshait, Haya A.
Iqbal, Shahid
Abubshait, Samar A.
Alotaibi, Mohammed T.
Alwadai, Norah
Alfryyan, Nada
Alsaab, Hashem O.
Awwad, Nasser S.
Ibrahium, Hala A.
author_sort Abubshait, Haya A.
collection PubMed
description A well-defined heterojunction among two dissimilar semiconductors exhibited enhanced photocatalytic performance owing to its capability for boosting the photoinduced electron/hole pair transportation. Therefore, designing and developing such heterojunctions using diverse semiconductor-based materials to enhance the photocatalytic ability employing various approaches have gained research attention. For this objective, g-C(3)N(4) is considered as a potential photocatalytic material for organic dye degradation; however, the rapid recombination rate of photoinduced charge carriers restricts the widespread applications of g-C(3)N(4). Henceforth, in the current study, we constructed a heterojunction of S-g-C(3)N(4)/Cu–NiS (SCN/CNS) two-dimensional/one-dimensional (2D/1D) binary nanocomposites (NCs) by a self-assembly approach. XRD results confirm the construction of 22% SCN/7CNS binary NCs. TEM analysis demonstrates that binary NCs comprise Cu–NiS nanorods (NRs) integrated with nanosheets (NSs) such as the morphology of SCN. The observed bandgap value of SCN is 2.69 eV; nevertheless, the SCN/CNS binary NCs shift the bandgap to 2.63 eV. Photoluminescence spectral analysis displays that the electron–hole pair recombination rate in the SCN/CNS binary NCs is excellently reduced owing to the construction of the well-defined heterojunction. The photoelectrochemical observations illustrate that SCN/CNS binary NCs improve the photocurrent to ∼0.66 mA and efficiently suppress the electron–hole pairs when compared with that of undoped NiS, CNS and SCN. Therefore, the 22% SCN/7CNS binary NCs efficiently improved methylene blue (MB) degradation to 99% for 32 min under visible light irradiation.
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spelling pubmed-89793472022-04-13 A well-defined S-g-C(3)N(4)/Cu–NiS heterojunction interface towards enhanced spatial charge separation with excellent photocatalytic ability: synergetic effect, kinetics, antibacterial activity, and mechanism insights Abubshait, Haya A. Iqbal, Shahid Abubshait, Samar A. Alotaibi, Mohammed T. Alwadai, Norah Alfryyan, Nada Alsaab, Hashem O. Awwad, Nasser S. Ibrahium, Hala A. RSC Adv Chemistry A well-defined heterojunction among two dissimilar semiconductors exhibited enhanced photocatalytic performance owing to its capability for boosting the photoinduced electron/hole pair transportation. Therefore, designing and developing such heterojunctions using diverse semiconductor-based materials to enhance the photocatalytic ability employing various approaches have gained research attention. For this objective, g-C(3)N(4) is considered as a potential photocatalytic material for organic dye degradation; however, the rapid recombination rate of photoinduced charge carriers restricts the widespread applications of g-C(3)N(4). Henceforth, in the current study, we constructed a heterojunction of S-g-C(3)N(4)/Cu–NiS (SCN/CNS) two-dimensional/one-dimensional (2D/1D) binary nanocomposites (NCs) by a self-assembly approach. XRD results confirm the construction of 22% SCN/7CNS binary NCs. TEM analysis demonstrates that binary NCs comprise Cu–NiS nanorods (NRs) integrated with nanosheets (NSs) such as the morphology of SCN. The observed bandgap value of SCN is 2.69 eV; nevertheless, the SCN/CNS binary NCs shift the bandgap to 2.63 eV. Photoluminescence spectral analysis displays that the electron–hole pair recombination rate in the SCN/CNS binary NCs is excellently reduced owing to the construction of the well-defined heterojunction. The photoelectrochemical observations illustrate that SCN/CNS binary NCs improve the photocurrent to ∼0.66 mA and efficiently suppress the electron–hole pairs when compared with that of undoped NiS, CNS and SCN. Therefore, the 22% SCN/7CNS binary NCs efficiently improved methylene blue (MB) degradation to 99% for 32 min under visible light irradiation. The Royal Society of Chemistry 2022-01-25 /pmc/articles/PMC8979347/ /pubmed/35425388 http://dx.doi.org/10.1039/d1ra07974c Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Abubshait, Haya A.
Iqbal, Shahid
Abubshait, Samar A.
Alotaibi, Mohammed T.
Alwadai, Norah
Alfryyan, Nada
Alsaab, Hashem O.
Awwad, Nasser S.
Ibrahium, Hala A.
A well-defined S-g-C(3)N(4)/Cu–NiS heterojunction interface towards enhanced spatial charge separation with excellent photocatalytic ability: synergetic effect, kinetics, antibacterial activity, and mechanism insights
title A well-defined S-g-C(3)N(4)/Cu–NiS heterojunction interface towards enhanced spatial charge separation with excellent photocatalytic ability: synergetic effect, kinetics, antibacterial activity, and mechanism insights
title_full A well-defined S-g-C(3)N(4)/Cu–NiS heterojunction interface towards enhanced spatial charge separation with excellent photocatalytic ability: synergetic effect, kinetics, antibacterial activity, and mechanism insights
title_fullStr A well-defined S-g-C(3)N(4)/Cu–NiS heterojunction interface towards enhanced spatial charge separation with excellent photocatalytic ability: synergetic effect, kinetics, antibacterial activity, and mechanism insights
title_full_unstemmed A well-defined S-g-C(3)N(4)/Cu–NiS heterojunction interface towards enhanced spatial charge separation with excellent photocatalytic ability: synergetic effect, kinetics, antibacterial activity, and mechanism insights
title_short A well-defined S-g-C(3)N(4)/Cu–NiS heterojunction interface towards enhanced spatial charge separation with excellent photocatalytic ability: synergetic effect, kinetics, antibacterial activity, and mechanism insights
title_sort well-defined s-g-c(3)n(4)/cu–nis heterojunction interface towards enhanced spatial charge separation with excellent photocatalytic ability: synergetic effect, kinetics, antibacterial activity, and mechanism insights
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8979347/
https://www.ncbi.nlm.nih.gov/pubmed/35425388
http://dx.doi.org/10.1039/d1ra07974c
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