Divalent Fe Atom Coordination in Two-Dimensional Microporous Graphitic Carbon Nitride

Graphitic carbon nitride (g-C3N4) is a rising two-dimensional material possessing intrinsic semiconducting property with unique geometric configuration featuring superimposed heterocyclic sp2 carbon and nitrogen network, nonplanar layer chain structure, and alternating buckling. The inherent porous structure of heptazine-based g-C3N4 features electron-rich sp2 nitrogen, which can be exploited as a stable transition metal coordination site. Multiple metal-functionalized g-C3N4 systems have been reported for versatile applications, but local coordination as well as its electronic structure variation upon incoming metal species is not well understood. Here we present detailed bond coordination of divalent iron (Fe2+) through micropore sites of graphitic carbon nitride and provide both experimental and computational evidence supporting the aforementioned proposition. In addition, the utilization of electronic structure variation is demonstrated through comparative photocatalytic activities of pristine and Fe-g-C3N4
Publisher
AMER CHEMICAL SOC
Issue Date
2016-08
Language
English
Keywords

OXYGEN REDUCTION REACTION; AUGMENTED-WAVE METHOD; VISIBLE-LIGHT; PHOTOCATALYTIC PERFORMANCE; HYDROGEN-PRODUCTION; CATALYSTS; GRAPHENE; NANOSHEETS; STORAGE; G-C3N4

Citation

ACS APPLIED MATERIALS & INTERFACES, v.8, no.38, pp.25438 - 25443

ISSN
1944-8244
DOI
10.1021/acsami.6b07287
URI
http://hdl.handle.net/10203/214115
Appears in Collection
NT-Journal Papers(저널논문)MS-Journal Papers(저널논문)
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