Please use this identifier to cite or link to this item: https://idr.l1.nitk.ac.in/jspui/handle/123456789/15745
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dc.contributor.authorNeelakanta Reddy I.
dc.contributor.authorJayashree N.
dc.contributor.authorManjunath V.
dc.contributor.authorKim D.
dc.contributor.authorShim J.
dc.date.accessioned2021-05-05T10:27:53Z-
dc.date.available2021-05-05T10:27:53Z-
dc.date.issued2020
dc.identifier.citationCatalysts Vol. 10 , 9 , p. 1 - 18en_US
dc.identifier.urihttps://doi.org/10.3390/catal10090983
dc.identifier.urihttp://idr.nitk.ac.in/jspui/handle/123456789/15745-
dc.description.abstractRecently, the engineering of optical bandgaps and morphological properties of graphitic carbon nitride (g-C3N4) has attracted significant research attention for photoelectrodes and environmental remediation owing to its low-cost synthesis, availability of raw materials, and thermal physical–chemical stability. However, the photoelectrochemical activity of g-C3N4-based photoelectrodes is considerably poor due to their high electron–hole recombination rate, poor conductivity, low quantum efficiency, and active catalytic sites. Synthesized Ni metal-doped g-C3N4 nanostructures can improve the light absorption property and considerably increase the electron–hole separation and charge transfer kinetics, thereby initiating exceptionally enhanced photoelectrochemical activity under visible-light irradiation. In the present study, Ni dopant material was found to evince a significant effect on the structural, morphological, and optical properties of g-C3N4 nanostructures. The optical bandgap of the synthesized photoelectrodes was varied from 2.53 to 2.18 eV with increasing Ni dopant concentration. The optimized 0.4 mol% Ni-doped g-C3N4 photoelectrode showed a noticeably improved six-fold photocurrent density compared to pure g-C3N4. The significant improvement in photoanode performance is attributable to the synergistic effects of enriched light absorption, enhanced charge transfer kinetics, photoelectrode/aqueous electrolyte interface, and additional active catalytic sites for photoelectrochemical activity. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.en_US
dc.titlePhotoelectrochemical studies on metal-doped graphitic carbon nitride nanostructures under visible-light illuminationen_US
dc.typeArticleen_US
Appears in Collections:1. Journal Articles

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