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Melem Hydrate-Derived g-C3N4 Micro-Rods Coordinated with Cu2+: Why is Cu a superior cocatalyst compared to Ni and co?

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dc.citedby0
dc.contributor.authorPandi K.en_US
dc.contributor.authorKangeyan K.P.en_US
dc.contributor.authorLakhera S.K.en_US
dc.contributor.authorKiong T.S.en_US
dc.contributor.authorBernaurdshaw N.en_US
dc.contributor.authorid57218799806en_US
dc.contributor.authorid58786302500en_US
dc.contributor.authorid56511969200en_US
dc.contributor.authorid57216824752en_US
dc.contributor.authorid6603045211en_US
dc.date.accessioned2025-03-03T07:42:27Z
dc.date.available2025-03-03T07:42:27Z
dc.date.issued2024
dc.description.abstractGraphitic carbon nitride (g-C?N?) holds significant promise for hydrogen production due to its visible-light activity, stability, and cost-effectiveness. However, it faces challenges related to high charge recombination and trapping, which ultimately hinders its photocatalytic efficiency. In this study, we address these limitations by first modifying g-C?N? nanosheets into rods through the formation of melem hydrate using an ultrasonication method. Subsequently, the melem hydrate is transformed into g-C?N? micro-rods (CNR). These CNR micro-rods are further coordinated with transition metals (Ni2?, Co2?, and Cu2?) via a hydrothermal process. Among these samples, the Cu-coordinated micro-rods exhibit the highest photocatalytic hydrogen production rate, achieving 4 mmol/g/h. This performance surpasses previously reported novel metal-coated g-C?N? materials. Notably, when compared to Ni and Co, the Cu-coordinated g-C?N? produces 2.8- and 3.6-times higher hydrogen, respectively. The enhanced performance is attributed to faster interfacial charge transfer kinetics between g-C?N? micro-rods and Cu, as evidenced by the highest kNT value of 0.81 ns?1 and kET value of 0.16 ns?1, measured using time-resolved photoluminescence spectroscopy. ? 2024 Elsevier Ltden_US
dc.description.natureFinalen_US
dc.identifier.ArtNo100942
dc.identifier.doi10.1016/j.mtsust.2024.100942
dc.identifier.scopus2-s2.0-85200600679
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85200600679&doi=10.1016%2fj.mtsust.2024.100942&partnerID=40&md5=5d231d021cdb30836cb3c4fa2639d2d3
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/36442
dc.identifier.volume27
dc.publisherElsevier Ltden_US
dc.sourceScopus
dc.sourcetitleMaterials Today Sustainability
dc.subjectCarbon nitride
dc.subjectCharge transfer
dc.subjectHydrates
dc.subjectHydration
dc.subjectHydrogen production
dc.subjectNickel
dc.subjectPhotoluminescence spectroscopy
dc.subjectCo catalysts
dc.subjectG-C3N4
dc.subjectGraphitic carbon nitrides
dc.subjectH 2 production
dc.subjectHigh charges
dc.subjectMelem hydrate
dc.subjectMetal nitrate hydroxide
dc.subjectMicrorods
dc.subjectPerformance
dc.subjectVisible-light activity
dc.subjectCost effectiveness
dc.titleMelem Hydrate-Derived g-C3N4 Micro-Rods Coordinated with Cu2+: Why is Cu a superior cocatalyst compared to Ni and co?en_US
dc.typeArticleen_US
dspace.entity.typePublication
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