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Single atom Cu(I) promoted mesoporous titanias for photocatalytic Methyl Orange depollution and H2 production

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Single atom Cu(I) promoted mesoporous titanias for photocatalytic Methyl Orange depollution and H2 production. / Trofimovaite, Rima; Parlett, Christopher M.A.; Kumar, Santosh ; Frattini, Lucia; Isaacs, Mark A.; Wilson, Karen; Olivi, Luca; Coulson, Ben; Debgupta, Joyashish; Douthwaite, Richard E.; Lee, Adam F.

In: APPLIED CATALYSIS B-ENVIRONMENTAL, Vol. 232, 15.09.2018, p. 501-511.

Research output: Contribution to journalArticle

Harvard

Trofimovaite, R, Parlett, CMA, Kumar, S, Frattini, L, Isaacs, MA, Wilson, K, Olivi, L, Coulson, B, Debgupta, J, Douthwaite, RE & Lee, AF 2018, 'Single atom Cu(I) promoted mesoporous titanias for photocatalytic Methyl Orange depollution and H2 production', APPLIED CATALYSIS B-ENVIRONMENTAL, vol. 232, pp. 501-511. https://doi.org/10.1016/j.apcatb.2018.03.078

APA

Trofimovaite, R., Parlett, C. M. A., Kumar, S., Frattini, L., Isaacs, M. A., Wilson, K., ... Lee, A. F. (2018). Single atom Cu(I) promoted mesoporous titanias for photocatalytic Methyl Orange depollution and H2 production. APPLIED CATALYSIS B-ENVIRONMENTAL, 232, 501-511. https://doi.org/10.1016/j.apcatb.2018.03.078

Vancouver

Trofimovaite R, Parlett CMA, Kumar S, Frattini L, Isaacs MA, Wilson K et al. Single atom Cu(I) promoted mesoporous titanias for photocatalytic Methyl Orange depollution and H2 production. APPLIED CATALYSIS B-ENVIRONMENTAL. 2018 Sep 15;232:501-511. https://doi.org/10.1016/j.apcatb.2018.03.078

Author

Trofimovaite, Rima ; Parlett, Christopher M.A. ; Kumar, Santosh ; Frattini, Lucia ; Isaacs, Mark A. ; Wilson, Karen ; Olivi, Luca ; Coulson, Ben ; Debgupta, Joyashish ; Douthwaite, Richard E. ; Lee, Adam F. / Single atom Cu(I) promoted mesoporous titanias for photocatalytic Methyl Orange depollution and H2 production. In: APPLIED CATALYSIS B-ENVIRONMENTAL. 2018 ; Vol. 232. pp. 501-511.

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@article{8075e5f02cbe4c408ca73130d0336a87,
title = "Single atom Cu(I) promoted mesoporous titanias for photocatalytic Methyl Orange depollution and H2 production",
abstract = "Tailoring the physicochemical properties and hence reactivity of semiconductor photocatalysts in a predictable fashion, remains a challenge to their industrial application. Here we demonstrate the striking promotional effect of incorporating single Cu(I) atoms, on aqueous phase photocatalytic dye degradation and H2 production over surfactant-templated mesoporous TiO2. X-ray absorption spectroscopy reveals that ultra-low concentrations of copper (0.02–0.1 wt{\%}) introduced into the mesoporous TiO2 surface create isolated Cu (I) species which suppress charge recombination, and confer a six-fold photocatalytic promotion of Methyl Orange degradation and four-fold enhancement of H2 evolution. The impact of mesopore structure and photophysical properties on photocatalytic activity is also quantified for the first time: calcination increases mesopore size and nanocrystalline order, and induces an anatase to rutile phase transition that is accompanied by a decrease in the optical band gap, increased charge carrier lifetime, and a concomitant significant activity enhancement.",
keywords = "Copper, Mesoporous, Photocatalysis, Titania, XAS",
author = "Rima Trofimovaite and Parlett, {Christopher M.A.} and Santosh Kumar and Lucia Frattini and Isaacs, {Mark A.} and Karen Wilson and Luca Olivi and Ben Coulson and Joyashish Debgupta and Douthwaite, {Richard E.} and Lee, {Adam F.}",
note = "{\circledC} Elsevier, 2018. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy.",
year = "2018",
month = "9",
day = "15",
doi = "10.1016/j.apcatb.2018.03.078",
language = "English",
volume = "232",
pages = "501--511",
journal = "APPLIED CATALYSIS B-ENVIRONMENTAL",
issn = "0926-3373",
publisher = "Elsevier",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Single atom Cu(I) promoted mesoporous titanias for photocatalytic Methyl Orange depollution and H2 production

AU - Trofimovaite, Rima

AU - Parlett, Christopher M.A.

AU - Kumar, Santosh

AU - Frattini, Lucia

AU - Isaacs, Mark A.

AU - Wilson, Karen

AU - Olivi, Luca

AU - Coulson, Ben

AU - Debgupta, Joyashish

AU - Douthwaite, Richard E.

AU - Lee, Adam F.

N1 - © Elsevier, 2018. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy.

PY - 2018/9/15

Y1 - 2018/9/15

N2 - Tailoring the physicochemical properties and hence reactivity of semiconductor photocatalysts in a predictable fashion, remains a challenge to their industrial application. Here we demonstrate the striking promotional effect of incorporating single Cu(I) atoms, on aqueous phase photocatalytic dye degradation and H2 production over surfactant-templated mesoporous TiO2. X-ray absorption spectroscopy reveals that ultra-low concentrations of copper (0.02–0.1 wt%) introduced into the mesoporous TiO2 surface create isolated Cu (I) species which suppress charge recombination, and confer a six-fold photocatalytic promotion of Methyl Orange degradation and four-fold enhancement of H2 evolution. The impact of mesopore structure and photophysical properties on photocatalytic activity is also quantified for the first time: calcination increases mesopore size and nanocrystalline order, and induces an anatase to rutile phase transition that is accompanied by a decrease in the optical band gap, increased charge carrier lifetime, and a concomitant significant activity enhancement.

AB - Tailoring the physicochemical properties and hence reactivity of semiconductor photocatalysts in a predictable fashion, remains a challenge to their industrial application. Here we demonstrate the striking promotional effect of incorporating single Cu(I) atoms, on aqueous phase photocatalytic dye degradation and H2 production over surfactant-templated mesoporous TiO2. X-ray absorption spectroscopy reveals that ultra-low concentrations of copper (0.02–0.1 wt%) introduced into the mesoporous TiO2 surface create isolated Cu (I) species which suppress charge recombination, and confer a six-fold photocatalytic promotion of Methyl Orange degradation and four-fold enhancement of H2 evolution. The impact of mesopore structure and photophysical properties on photocatalytic activity is also quantified for the first time: calcination increases mesopore size and nanocrystalline order, and induces an anatase to rutile phase transition that is accompanied by a decrease in the optical band gap, increased charge carrier lifetime, and a concomitant significant activity enhancement.

KW - Copper

KW - Mesoporous

KW - Photocatalysis

KW - Titania

KW - XAS

UR - http://www.scopus.com/inward/record.url?scp=85044604998&partnerID=8YFLogxK

U2 - 10.1016/j.apcatb.2018.03.078

DO - 10.1016/j.apcatb.2018.03.078

M3 - Article

VL - 232

SP - 501

EP - 511

JO - APPLIED CATALYSIS B-ENVIRONMENTAL

JF - APPLIED CATALYSIS B-ENVIRONMENTAL

SN - 0926-3373

ER -