Delaminated CoAl-Layered Double Hydroxide at TiO2 Heterojunction Nanocomposites for Photocatalytic Reduction of CO2

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Delaminated CoAl-Layered Double Hydroxide at TiO2 Heterojunction Nanocomposites for Photocatalytic Reduction of CO2. / Kumar, Santosh; Durndell, Lee J.; Manayil, Jinesh C.; Isaacs, Mark A.; Parlett, Christopher M.A.; Karthikeyan, Sekar; Douthwaite, Richard E.; Coulson, Ben; Wilson, Karen; Lee, Adam F.

In: Particle & particle systems characterization, 22.11.2017, p. 1-11.

Research output: Contribution to journalArticle

Harvard

Kumar, S, Durndell, LJ, Manayil, JC, Isaacs, MA, Parlett, CMA, Karthikeyan, S, Douthwaite, RE, Coulson, B, Wilson, K & Lee, AF 2017, 'Delaminated CoAl-Layered Double Hydroxide at TiO2 Heterojunction Nanocomposites for Photocatalytic Reduction of CO2', Particle & particle systems characterization, pp. 1-11. https://doi.org/10.1002/ppsc.201700317

APA

Kumar, S., Durndell, L. J., Manayil, J. C., Isaacs, M. A., Parlett, C. M. A., Karthikeyan, S., ... Lee, A. F. (2017). Delaminated CoAl-Layered Double Hydroxide at TiO2 Heterojunction Nanocomposites for Photocatalytic Reduction of CO2. Particle & particle systems characterization, 1-11. [1700317]. https://doi.org/10.1002/ppsc.201700317

Vancouver

Kumar S, Durndell LJ, Manayil JC, Isaacs MA, Parlett CMA, Karthikeyan S et al. Delaminated CoAl-Layered Double Hydroxide at TiO2 Heterojunction Nanocomposites for Photocatalytic Reduction of CO2. Particle & particle systems characterization. 2017 Nov 22;1-11. 1700317. https://doi.org/10.1002/ppsc.201700317

Author

Kumar, Santosh ; Durndell, Lee J. ; Manayil, Jinesh C. ; Isaacs, Mark A. ; Parlett, Christopher M.A. ; Karthikeyan, Sekar ; Douthwaite, Richard E. ; Coulson, Ben ; Wilson, Karen ; Lee, Adam F. / Delaminated CoAl-Layered Double Hydroxide at TiO2 Heterojunction Nanocomposites for Photocatalytic Reduction of CO2. In: Particle & particle systems characterization. 2017 ; pp. 1-11.

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@article{5adaf4fecb0549c09c46537795cfcc97,
title = "Delaminated CoAl-Layered Double Hydroxide at TiO2 Heterojunction Nanocomposites for Photocatalytic Reduction of CO2",
abstract = "Photocatalytic reduction offers an attractive route for CO2 utilization as a chemical feedstock for solar fuels production but remains challenging due to the poor efficiency, instability, and/or toxicity of current catalyst systems. Delaminated CoAl-layered double hydroxide nanosheets (LDH-DS) combined with TiO2 nanotubes (NTs) or nanoparticles (NPs) are promising nanocomposite photocatalysts for CO2 reduction. Heterojunction formation between visible light absorbing delaminated CoAl nanosheets and UV light absorbing TiO2 nanotubes greatly enhances interfacial contact between both high aspect ratio components relative to their bulk counterparts. The resulting synergic interaction confers a significant improvement in photoinduced charge carrier separation, and concomitant aqueous phase CO2 photocatalytic reduction, in the absence of a sacrificial hole acceptor. CO productivity for a 3 wt{\%} LDH-DS at TiO2-NT nanocomposite of 4.57 μmol gcat -1 h-1 exhibits a tenfold and fivefold increase over that obtained for individual TiO2 NT and delaminated CoAl-LDH components respectively and is double that obtained for 3 wt{\%} bulk-LDH at TiO2-NT and 3 wt{\%} LDH-DS at TiO2-NP catalysts. Synthesis of delaminated LDH and metal oxide nanocomposites represents a cost-effective strategy for aqueous phase CO2 reduction.",
keywords = "CO, Layered double hydroxides, Nanocomposites, Photocatalysis, Titania",
author = "Santosh Kumar and Durndell, {Lee J.} and Manayil, {Jinesh C.} and Isaacs, {Mark A.} and Parlett, {Christopher M.A.} and Sekar Karthikeyan and Douthwaite, {Richard E.} and Ben Coulson and Karen Wilson and Lee, {Adam F.}",
note = "{\circledC} 2017 WILEY-VCH Verlag GmbH & Co. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details",
year = "2017",
month = "11",
day = "22",
doi = "10.1002/ppsc.201700317",
language = "English",
pages = "1--11",
journal = "Particle & particle systems characterization",
issn = "0934-0866",
publisher = "Wiley-VCH Verlag",

}

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TY - JOUR

T1 - Delaminated CoAl-Layered Double Hydroxide at TiO2 Heterojunction Nanocomposites for Photocatalytic Reduction of CO2

AU - Kumar, Santosh

AU - Durndell, Lee J.

AU - Manayil, Jinesh C.

AU - Isaacs, Mark A.

AU - Parlett, Christopher M.A.

AU - Karthikeyan, Sekar

AU - Douthwaite, Richard E.

AU - Coulson, Ben

AU - Wilson, Karen

AU - Lee, Adam F.

N1 - © 2017 WILEY-VCH Verlag GmbH & Co. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details

PY - 2017/11/22

Y1 - 2017/11/22

N2 - Photocatalytic reduction offers an attractive route for CO2 utilization as a chemical feedstock for solar fuels production but remains challenging due to the poor efficiency, instability, and/or toxicity of current catalyst systems. Delaminated CoAl-layered double hydroxide nanosheets (LDH-DS) combined with TiO2 nanotubes (NTs) or nanoparticles (NPs) are promising nanocomposite photocatalysts for CO2 reduction. Heterojunction formation between visible light absorbing delaminated CoAl nanosheets and UV light absorbing TiO2 nanotubes greatly enhances interfacial contact between both high aspect ratio components relative to their bulk counterparts. The resulting synergic interaction confers a significant improvement in photoinduced charge carrier separation, and concomitant aqueous phase CO2 photocatalytic reduction, in the absence of a sacrificial hole acceptor. CO productivity for a 3 wt% LDH-DS at TiO2-NT nanocomposite of 4.57 μmol gcat -1 h-1 exhibits a tenfold and fivefold increase over that obtained for individual TiO2 NT and delaminated CoAl-LDH components respectively and is double that obtained for 3 wt% bulk-LDH at TiO2-NT and 3 wt% LDH-DS at TiO2-NP catalysts. Synthesis of delaminated LDH and metal oxide nanocomposites represents a cost-effective strategy for aqueous phase CO2 reduction.

AB - Photocatalytic reduction offers an attractive route for CO2 utilization as a chemical feedstock for solar fuels production but remains challenging due to the poor efficiency, instability, and/or toxicity of current catalyst systems. Delaminated CoAl-layered double hydroxide nanosheets (LDH-DS) combined with TiO2 nanotubes (NTs) or nanoparticles (NPs) are promising nanocomposite photocatalysts for CO2 reduction. Heterojunction formation between visible light absorbing delaminated CoAl nanosheets and UV light absorbing TiO2 nanotubes greatly enhances interfacial contact between both high aspect ratio components relative to their bulk counterparts. The resulting synergic interaction confers a significant improvement in photoinduced charge carrier separation, and concomitant aqueous phase CO2 photocatalytic reduction, in the absence of a sacrificial hole acceptor. CO productivity for a 3 wt% LDH-DS at TiO2-NT nanocomposite of 4.57 μmol gcat -1 h-1 exhibits a tenfold and fivefold increase over that obtained for individual TiO2 NT and delaminated CoAl-LDH components respectively and is double that obtained for 3 wt% bulk-LDH at TiO2-NT and 3 wt% LDH-DS at TiO2-NP catalysts. Synthesis of delaminated LDH and metal oxide nanocomposites represents a cost-effective strategy for aqueous phase CO2 reduction.

KW - CO

KW - Layered double hydroxides

KW - Nanocomposites

KW - Photocatalysis

KW - Titania

UR - http://www.scopus.com/inward/record.url?scp=85034742134&partnerID=8YFLogxK

U2 - 10.1002/ppsc.201700317

DO - 10.1002/ppsc.201700317

M3 - Article

SP - 1

EP - 11

JO - Particle & particle systems characterization

JF - Particle & particle systems characterization

SN - 0934-0866

M1 - 1700317

ER -