Characterization and effect of Ag(0) vs. Ag(I) species and their localized plasmon resonance on photochemically inactive TiO 2

Chanel Tri Handoko, Nikolaos G. Moustakas, Tim Peppel (Corresponding author), Armin Springer, Freddy E. Oropeza, Adri Huda, Muhammad Djoni Bustan, Bambang Yudono, Fakhili Gulo (Corresponding author), Jennifer Strunk

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Uittreksel

Commercial TiO 2 (anatase) was successfully modified with Ag nanoparticles at different nominal loadings (1%-4%) using a liquid impregnation method. The prepared materials retained the anatase structure and contained a mixture of Ag 0 and Ag I species. Samples exhibited extended light absorption to the visible region. The effect of Ag loading on TiO 2 is studied for the photocatalytic reduction of CO 2 to CH 4 in a gas-solid process under high-purity conditions. It is remarkable that the reference TiO 2 used in this work is entirely inactive in this reaction, but it allows for studying the effect of Ag on the photocatalytic process in more detail. Only in the case of 2% Ag/TiO 2 was the formation of CH 4 from CO 2 observed. Using different light sources, an influence of the localized surface plasmon resonance (LSPR) effect of Ag is verified. A sample in which all Ag has been reduced to the metallic state was less active than the respective sample containing both Ag 0 and Ag + , indicating that a mixed oxidation state is beneficial for photocatalytic performance. These results contribute to a better understanding of the effect of metal modification of TiO 2 in photocatalytic CO 2 reduction.

Originele taal-2Engels
Artikelnummer323
Aantal pagina's16
TijdschriftCatalysts
Volume9
Nummer van het tijdschrift4
DOI's
StatusGepubliceerd - 1 apr 2019

Vingerafdruk

Carbon Monoxide
Titanium dioxide
Surface plasmon resonance
Impregnation
anatase
Light absorption
Light sources
methylidyne
Nanoparticles
Oxidation
Liquids
electromagnetic absorption
Gases
Metals
surface plasmon resonance
light sources
purity
nanoparticles
oxidation
liquids

Citeer dit

Handoko, C. T., Moustakas, N. G., Peppel, T., Springer, A., Oropeza, F. E., Huda, A., ... Strunk, J. (2019). Characterization and effect of Ag(0) vs. Ag(I) species and their localized plasmon resonance on photochemically inactive TiO 2. Catalysts, 9(4), [323]. https://doi.org/10.3390/catal9040323
Handoko, Chanel Tri ; Moustakas, Nikolaos G. ; Peppel, Tim ; Springer, Armin ; Oropeza, Freddy E. ; Huda, Adri ; Bustan, Muhammad Djoni ; Yudono, Bambang ; Gulo, Fakhili ; Strunk, Jennifer. / Characterization and effect of Ag(0) vs. Ag(I) species and their localized plasmon resonance on photochemically inactive TiO 2. In: Catalysts. 2019 ; Vol. 9, Nr. 4.
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title = "Characterization and effect of Ag(0) vs. Ag(I) species and their localized plasmon resonance on photochemically inactive TiO 2",
abstract = "Commercial TiO 2 (anatase) was successfully modified with Ag nanoparticles at different nominal loadings (1{\%}-4{\%}) using a liquid impregnation method. The prepared materials retained the anatase structure and contained a mixture of Ag 0 and Ag I species. Samples exhibited extended light absorption to the visible region. The effect of Ag loading on TiO 2 is studied for the photocatalytic reduction of CO 2 to CH 4 in a gas-solid process under high-purity conditions. It is remarkable that the reference TiO 2 used in this work is entirely inactive in this reaction, but it allows for studying the effect of Ag on the photocatalytic process in more detail. Only in the case of 2{\%} Ag/TiO 2 was the formation of CH 4 from CO 2 observed. Using different light sources, an influence of the localized surface plasmon resonance (LSPR) effect of Ag is verified. A sample in which all Ag has been reduced to the metallic state was less active than the respective sample containing both Ag 0 and Ag + , indicating that a mixed oxidation state is beneficial for photocatalytic performance. These results contribute to a better understanding of the effect of metal modification of TiO 2 in photocatalytic CO 2 reduction.",
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Handoko, CT, Moustakas, NG, Peppel, T, Springer, A, Oropeza, FE, Huda, A, Bustan, MD, Yudono, B, Gulo, F & Strunk, J 2019, 'Characterization and effect of Ag(0) vs. Ag(I) species and their localized plasmon resonance on photochemically inactive TiO 2', Catalysts, vol. 9, nr. 4, 323. https://doi.org/10.3390/catal9040323

Characterization and effect of Ag(0) vs. Ag(I) species and their localized plasmon resonance on photochemically inactive TiO 2. / Handoko, Chanel Tri; Moustakas, Nikolaos G.; Peppel, Tim (Corresponding author); Springer, Armin; Oropeza, Freddy E.; Huda, Adri; Bustan, Muhammad Djoni; Yudono, Bambang; Gulo, Fakhili (Corresponding author); Strunk, Jennifer.

In: Catalysts, Vol. 9, Nr. 4, 323, 01.04.2019.

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

TY - JOUR

T1 - Characterization and effect of Ag(0) vs. Ag(I) species and their localized plasmon resonance on photochemically inactive TiO 2

AU - Handoko, Chanel Tri

AU - Moustakas, Nikolaos G.

AU - Peppel, Tim

AU - Springer, Armin

AU - Oropeza, Freddy E.

AU - Huda, Adri

AU - Bustan, Muhammad Djoni

AU - Yudono, Bambang

AU - Gulo, Fakhili

AU - Strunk, Jennifer

PY - 2019/4/1

Y1 - 2019/4/1

N2 - Commercial TiO 2 (anatase) was successfully modified with Ag nanoparticles at different nominal loadings (1%-4%) using a liquid impregnation method. The prepared materials retained the anatase structure and contained a mixture of Ag 0 and Ag I species. Samples exhibited extended light absorption to the visible region. The effect of Ag loading on TiO 2 is studied for the photocatalytic reduction of CO 2 to CH 4 in a gas-solid process under high-purity conditions. It is remarkable that the reference TiO 2 used in this work is entirely inactive in this reaction, but it allows for studying the effect of Ag on the photocatalytic process in more detail. Only in the case of 2% Ag/TiO 2 was the formation of CH 4 from CO 2 observed. Using different light sources, an influence of the localized surface plasmon resonance (LSPR) effect of Ag is verified. A sample in which all Ag has been reduced to the metallic state was less active than the respective sample containing both Ag 0 and Ag + , indicating that a mixed oxidation state is beneficial for photocatalytic performance. These results contribute to a better understanding of the effect of metal modification of TiO 2 in photocatalytic CO 2 reduction.

AB - Commercial TiO 2 (anatase) was successfully modified with Ag nanoparticles at different nominal loadings (1%-4%) using a liquid impregnation method. The prepared materials retained the anatase structure and contained a mixture of Ag 0 and Ag I species. Samples exhibited extended light absorption to the visible region. The effect of Ag loading on TiO 2 is studied for the photocatalytic reduction of CO 2 to CH 4 in a gas-solid process under high-purity conditions. It is remarkable that the reference TiO 2 used in this work is entirely inactive in this reaction, but it allows for studying the effect of Ag on the photocatalytic process in more detail. Only in the case of 2% Ag/TiO 2 was the formation of CH 4 from CO 2 observed. Using different light sources, an influence of the localized surface plasmon resonance (LSPR) effect of Ag is verified. A sample in which all Ag has been reduced to the metallic state was less active than the respective sample containing both Ag 0 and Ag + , indicating that a mixed oxidation state is beneficial for photocatalytic performance. These results contribute to a better understanding of the effect of metal modification of TiO 2 in photocatalytic CO 2 reduction.

KW - Liquid impregnation

KW - Localized surface plasmon resonance

KW - Oxidation state

KW - Silver

KW - TiO

UR - http://www.scopus.com/inward/record.url?scp=85065396315&partnerID=8YFLogxK

U2 - 10.3390/catal9040323

DO - 10.3390/catal9040323

M3 - Article

AN - SCOPUS:85065396315

VL - 9

JO - Catalysts

JF - Catalysts

SN - 2073-4344

IS - 4

M1 - 323

ER -