Surface activated carbon nitride nanosheets with optimized electro-optical properties for highly efficient photocatalytic hydrogen production

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dc.contributor.authorRahman, M.
dc.contributor.authorRan, J.
dc.contributor.authorTang, Y.
dc.contributor.authorJaroniec, M.
dc.contributor.authorQiao, S.
dc.date.issued2016
dc.description.abstractIncomplete polycondensation of the precursor, structural destruction and blue-shift of 2D nanosheets of carbon nitride are nowadays the serious problems. Therefore, optimization of the structural and electro-optical properties of carbon nitride, and reduction of its dependency on the high loading of the Pt cocatalyst needed for enhanced photocatalytic performance is of urgent necessity for sustainable and low-cost hydrogen production from water. To address this issue, we report sub-nanometer-thin carbon nitride nanosheets, which are fabricated by a combined three-step method including co-polymerization, surface activation and exfoliation. The resultant nanosheets are structurally very robust and photocatalytically highly efficient as evidenced by 38 times enhancement in their hydrogen production rate as compared to the pristine carbon nitride, with 100 times smaller loading of Pt as a co-catalyst. The extended visible-light absorption, suppressed charge carrier recombination, enhanced charge separation, low over potential and high surface area are the prominent reasons behind this unprecedented improvement.
dc.description.statementofresponsibilityMohammad Ziaur Rahman, Jingrun Ran, Youhong Tang, Mietek Jaroniec and Shi Zhang Qiao
dc.identifier.citationJournal of Materials Chemistry A, 2016; 4(7):2445-2452
dc.identifier.doi10.1039/c5ta10194h
dc.identifier.issn2050-7488
dc.identifier.issn2050-7496
dc.identifier.orcidRahman, M. [0000-0003-3264-4778]
dc.identifier.orcidQiao, S. [0000-0002-1220-1761] [0000-0002-4568-8422]
dc.identifier.urihttp://hdl.handle.net/2440/103947
dc.language.isoen
dc.publisherRoyal Society of Chemistry
dc.relation.granthttp://purl.org/au-research/grants/arc/DP130104459
dc.relation.granthttp://purl.org/au-research/grants/arc/DP140104062
dc.relation.granthttp://purl.org/au-research/grants/arc/DP160104866
dc.rightsThis journal is © The Royal Society of Chemistry 2016
dc.source.urihttps://doi.org/10.1039/c5ta10194h
dc.titleSurface activated carbon nitride nanosheets with optimized electro-optical properties for highly efficient photocatalytic hydrogen production
dc.typeJournal article
pubs.publication-statusPublished

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