Hydrogen-terminated mesoporous silicon monoliths with huge surface area as alternative Si-based visible light-active photocatalysts

Handle URI:
http://hdl.handle.net/10754/621556
Title:
Hydrogen-terminated mesoporous silicon monoliths with huge surface area as alternative Si-based visible light-active photocatalysts
Authors:
Li, Ting; Li, Jun; Zhang, Qiang; Blazeby, Emma; Shang, Congxiao; Xu, Hualong; Zhang, Xixiang ( 0000-0002-3478-6414 ) ; Chao, Yimin
Abstract:
Silicon-based nanostructures and their related composites have drawn tremendous research interest in solar energy storage and conversion. Mesoporous silicon with a huge surface area of 400-900 m2 g-1 developed by electrochemical etching exhibits excellent photocatalytic ability and stability after 10 cycles in degrading methyl orange under visible light irradiation, owing to its unique mesoporous network, abundant surface hydrides and efficient light harvesting. This work showcases the profound effects of surface area, crystallinity, pore topology on charge migration/recombination and mass transportation. Therein the ordered 1D channel array has outperformed the interconnected 3D porous network by greatly accelerating the mass diffusion and enhancing the accessibility of the active sites on the extensive surfaces. © 2016 The Royal Society of Chemistry.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Li T, Li J, Zhang Q, Blazeby E, Shang C, et al. (2016) Hydrogen-terminated mesoporous silicon monoliths with huge surface area as alternative Si-based visible light-active photocatalysts. RSC Adv 6: 71092–71099. Available: http://dx.doi.org/10.1039/c6ra09474k.
Publisher:
Royal Society of Chemistry (RSC)
Journal:
RSC Adv.
Issue Date:
21-Jul-2016
DOI:
10.1039/c6ra09474k
Type:
Article
ISSN:
2046-2069
Sponsors:
T. L. is grateful to an International studentship awarded by University of East Anglia.
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorLi, Tingen
dc.contributor.authorLi, Junen
dc.contributor.authorZhang, Qiangen
dc.contributor.authorBlazeby, Emmaen
dc.contributor.authorShang, Congxiaoen
dc.contributor.authorXu, Hualongen
dc.contributor.authorZhang, Xixiangen
dc.contributor.authorChao, Yiminen
dc.date.accessioned2016-11-03T08:32:05Z-
dc.date.available2016-11-03T08:32:05Z-
dc.date.issued2016-07-21en
dc.identifier.citationLi T, Li J, Zhang Q, Blazeby E, Shang C, et al. (2016) Hydrogen-terminated mesoporous silicon monoliths with huge surface area as alternative Si-based visible light-active photocatalysts. RSC Adv 6: 71092–71099. Available: http://dx.doi.org/10.1039/c6ra09474k.en
dc.identifier.issn2046-2069en
dc.identifier.doi10.1039/c6ra09474ken
dc.identifier.urihttp://hdl.handle.net/10754/621556-
dc.description.abstractSilicon-based nanostructures and their related composites have drawn tremendous research interest in solar energy storage and conversion. Mesoporous silicon with a huge surface area of 400-900 m2 g-1 developed by electrochemical etching exhibits excellent photocatalytic ability and stability after 10 cycles in degrading methyl orange under visible light irradiation, owing to its unique mesoporous network, abundant surface hydrides and efficient light harvesting. This work showcases the profound effects of surface area, crystallinity, pore topology on charge migration/recombination and mass transportation. Therein the ordered 1D channel array has outperformed the interconnected 3D porous network by greatly accelerating the mass diffusion and enhancing the accessibility of the active sites on the extensive surfaces. © 2016 The Royal Society of Chemistry.en
dc.description.sponsorshipT. L. is grateful to an International studentship awarded by University of East Anglia.en
dc.publisherRoyal Society of Chemistry (RSC)en
dc.titleHydrogen-terminated mesoporous silicon monoliths with huge surface area as alternative Si-based visible light-active photocatalystsen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalRSC Adv.en
dc.contributor.institutionSchool of Chemistry, University of East Anglia, Norwich Research Park, Norwich, United Kingdomen
dc.contributor.institutionSchool of Environmental Sciences, University of East Anglia, Norwich, United Kingdomen
dc.contributor.institutionDepartment of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Laboratory of Advanced Materials, Fudan University, Shanghai, Chinaen
kaust.authorLi, Junen
kaust.authorZhang, Qiangen
kaust.authorZhang, Xixiangen
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